2021年03月, 北海道大学大学院工学研究院, 若手教員奨励賞　　　　　　　　　　　　　　　
本田真也

2017年04月, 日本機械学会, 2016年度日本機械学会賞（論文）　　　　　　　　　　　　　　　
双安定性を有する複合材シェルのスナップスルー変形に関する多目的最適化
本田真也;高橋圭佑;成田吉弘

2015年08月, 日本機械学会 機械力学計測制御部門, オーディエンス表彰　　　　　　　　　　　　　　　
双安定性を有する複合材シェルのスナップスルー変形に関する多目的最適化
本田真也

2011年04月, 日本機械学会, 奨励賞(研究)　　　　　　　　　　　　　　　
局所的な異方性を有する繊維強化複合材料の解析と最適設計の研究
本田真也

2011年01月, 第53回自動制御連合講演会, 優秀発表賞　　　　　　　　　　　　　　　
積層複合材のスマート化による振動制御を目的とした統合最適化
本田真也

2007年04月, Association for Simulation and Mulitidisciplinary Design Optimization, エクセレントペーパーアワード　　　　　　　　　　　　　　　
Minimum weight design for vibration of laminated plates using lamination parameters
本田真也;成田吉弘

2007年03月, 日本機械学会, 三浦賞　　　　　　　　　　　　　　　
第501号
本田真也

Sequential approximate optimization of curvilinear fiber paths for enhanced vibration performance in composite shells
Xin Wang, Shinya Honda, Katsuhiko Sasaki, Ryo Takeda
Composite Structures, 372, 119532, 119532, Elsevier BV, 2025年11月
研究論文（学術雑誌）

Derivation of fatigue damage law for an aluminum alloy based on plastic-creep separation strain analysis
Towa Hayashibe, Ken-ichi Ohguchi, Katsuhiko Sasaki, Kohei Fukuchi, Shinya Honda, Yorimasa Tsubota, Takuro Mita, Wataru Nagai, Kouji Ohsato, Nobuaki Shinya
International Journal of Fatigue, 198, 108964, 108964, Elsevier BV, 2025年09月
英語, 研究論文（学術雑誌）

Stiffness Design and Layer Shape Optimization of Domain-Divided Perforated Laminates by Sequential Approximate Multi-Objective Optimization
Shinya HONDA, Xin WANG, Ryo TAKEDA, Katsuhiko SASAKI
Mechanics of Advanced Materials and Structures, 1, 17, Informa UK Limited, 2025年07月06日, ［査読有り］, ［筆頭著者］
英語, 研究論文（学術雑誌）

A study on the possibility of utilizing CFRP fabricated by EDRM as structural capacitor by incorporating CNF
Md Tansirul Islam, Shinya Honda, Kazuaki Katagiri, Katsuhiko Sasaki, Ryo Takeda, Yuto Shimizu, Antoine Cozigou
Composites Part C: Open Access, 2025年07月, ［査読有り］
研究論文（学術雑誌）

電着樹脂含浸CFRPの通電条件と力学特性の関係
清水 佑音, 本田 真也, 佐々木 克彦, 武田 量, 片桐 一彰
日本複合材料学会誌, 51, 3, 2025年05月, ［査読有り］, ［責任著者］
日本語, 研究論文（学術雑誌）, 46590037

Investigation of manufacture variables on the mechanical properties of CFRP prepared by electrodeposition resin molding method
Md Tansirul Islam, Shinya Honda, Kazuaki Katagiri, Katsuhiko Sasaki, Ryo Takeda
Mechanics of Advanced Materials and Structures, 1, 16, Informa UK Limited, 2024年01月18日, ［査読有り］
英語, 研究論文（学術雑誌）

Vibration Design of Composites with Nonlinear Fiber Shapes Fabricated by Tailored Fiber Placement Machine and Electrodeposition Resin Molding Method
Shinya Honda, Isamu Saiwaki, Kazuaki Katagiri, Katsuhiko Sasaki, Ryo Takeda
2023 IUTAM Symposium on Nonlinear dynamics for design of mechanical systems across different length/time scales, 2023年08月, ［査読有り］, ［招待有り］, ［筆頭著者, 責任著者］
研究論文（国際会議プロシーディングス）, 31613957

Analytical and Experimental Study for Vibration of Laminated Rectangular Plates with Point Masses
Shinya Honda, Katsuhiko Sasakir, Yoshihiro Narita
Science and Engineering (EICSE 5th edition), Trans Tech Publications Ltd, 2023年06月23日, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）, An analytical method is presented for free vibration of a symmetrically laminated rectangular plate with point masses, and experimental modal analysis is conducted to compare both sets of the frequency data. The problem is solved by an extending Ritz method to include kinetic energy caused by added point masses under any sets of edge conditions, and a frequency equation is derived by minimizing the energy functional. In numerical computation, the accuracy of the solution is studied by convergence test and comparison with the existing result in the specific case. Then, the experimental modal analysis is applied to measure the natural frequencies and mode shapes. The two sets of results are compared, and the validity of both theoretical and experimental approaches is established.

Stent Geometry Optimization for In-Stent Restenosis Prevention Through Fluid–Structure Interaction Analysis
Varien Janitra Nuralif Susanto, Ryo Takeda, Shinya Honda, Katsuhiko Sasaki
Lecture Notes in Mechanical Engineering, 98, 105, Lecture Notes in Mechanical Engineering, 2023年, ［査読有り］
研究論文（国際会議プロシーディングス）

Effect of Heat Curing Temperature for CFRP Fabricated by Electrodeposition Resin Molding Method
Md Tansirul Islam, Shinya Honda, Kazuaki Katagiri, Katsuhiko Sasaki, Ryo Takeda
Proceedings of the American Society for Composites - 38th Technical Conference, ASC 2023, 115, 123, 2023年
研究論文（国際会議プロシーディングス）

Impact properties of carbon fiber/cellulose nanofiber reinforced epoxy composite using asymmetric stacking sequence of non-hydrophobic cellulose nanofiber dispersion layer
Kazuaki Katagiri, Naoko Kishimoto, Haruna Yamaguchi, Toshihiko Okumura, Sonomi Kawakita, Shinya Honda, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 30, 19, 3965, 3978, 2023年, ［査読有り］
英語, 研究論文（学術雑誌）

Manufacturability and Deformation Performances of CFRP Twist Morphing Wing Structure with Applying the Electrodeposition Resin Molding Method
Kazuaki Katagiri, Daekwi Kim, Choong Sik Park, Sonomi Kawakita, Masato Tamayama, Koki Kayano, Shinya Honda, Katsuhiko Sasaki, Makoto Yamazaki
Lecture Notes in Electrical Engineering, 912, 879, 891, 2023年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Estimation of damping characteristics and optimization of curvilinear fiber shapes for composites fabricated by electrodeposition resin molding
Shinya Honda, Hiraku Takisawa, Ryo Takeda, Katsuhiko Sasaki, Kazuaki Katagiri
Mechanics of Advanced Materials and Structures, 30, 21, 4407, 4418, 2023年, ［査読有り］, ［筆頭著者, 責任著者］
研究論文（学術雑誌）

Effects of stacking sequences of non-hydrophobic cellulose nanofiber dispersion layer on impact properties of carbon fiber/cellulose nanofiber reinforced epoxy composite
Kazuaki Katagiri, Naoko Kishimoto, Haruna Yamaguchi, Toshihiko Okumura, Sonomi Kawakita, Shinya Honda, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 30, 3, 582, 591, Informa UK Limited, 2023年, ［査読有り］
研究論文（学術雑誌）

Adaptive Vibration Control of Smart Structure Using Deep Reinforcement Learning
Shinya Honda, Yuta Imura, Katsuhiko Sasaki, Ryo Takeda
EPI International Journal of Engineering, 5, 2, 92, 97, Center of Technology (COT), 2022年08月31日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
英語, 研究論文（学術雑誌）, In this research, the authors developed an adaptive control method using deep reinforcement learning which is a kind of machine learning to suppress the vibration of smart structures. This method just requires information about the control response and input, and don’t require numerical models for the controlled object to design the controller. We experimented to verify the effectiveness of this method. In this experiment, a smart structure fabricated by an aluminum plate and a piezoelectric actuator was used as a controlled object. Three kinds of reinforcement learning algorithms are employed, Deep Q Network (DQN), Deep Deterministic Policy Gradient (DDPG), and Twin Delayed DDPG (TD3), and the control performance is compared. As a result, we succeeded in reducing the  norm of the frequency response to impulse disturbance by up to about 40 dB compared to the uncontrolled case. This demonstrates the applicability of the control method using deep reinforcement learning to adaptive vibration control.

Investigations into the Potential of Using Open Source CFD to Analyze the Differences in Hemodynamic Parameters for Aortic Dissections (Healthy versus Stanford Type A and B)
Ryo Takeda, Fumiya Sato, Hiroichi Yokoyama, Katsuhiko Sasaki, Nobuyuki Oshima, Akiyoshi Kuroda, Hideyoshi Takashima, Chenyu Li, Shinya Honda, Hiroyuki Kamiya
Annals of Vascular Surgery, 79, 310, 323, Elsevier BV, 2022年02月, ［査読有り］
研究論文（学術雑誌）

Mechanical properties of the skeletal structure for UAV morphing wing by using CFRP with applying the electrodeposition resin molding method
Kazuaki Katagiri, Choong Sik Park, Sonomi Kawakita, Daekwi Kim, Masato Tamayama, Shinya Honda, Katsuhiko Sasaki, Makoto Yamazaki
AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022, American Institute of Aeronautics and Astronautics, 2022年01月03日, ［査読有り］
研究論文（国際会議プロシーディングス）

シェル構造に向けた曲線状強化繊維複合材の振動最適化手法
才脇 武, 本田 真也, 片桐 一彰, 佐々木 克彦, 武田 量
Dynamics & Design Conference, 2022, 145, 一般社団法人 日本機械学会, 2022年
日本語, Tailored Fiber Placement (TFP) is an embroidery technique that enables it possible to design free fiber shapes on base material sheets. The TFP generally creates curved fibers on a flat surface. However, CFRP structures are often used as shell structures rather than as flat plates, and there is not enough research to design fiber shapes on curved surfaces. In this research, we applied our previous optimization method for curved fiber shapes to shell structures. Curved fiber shapes were created by the linear combination of radial basis functions (RBFs) to represent complex fiber shapes. The fiber shape on a curved surface was represented by projecting the fiber shape on a plane surface using a coordinate transformation technique. Using this method, we investigated optimum fiber shapes to improve the first natural frequency of shell structure composites. The results showed that the optimum fiber shape gave higher natural frequencies than the linear fiber orientation. Obtained optimum fiber shape resulted in higher natural frequencies than the linear fiber orientation.

曲線状強化繊維を有する複合材の減衰特性同定と最適化
本田 真也, 瀧澤 拓, 片桐 一彰, 佐々木 克彦, 武田 量
理論応用力学講演会 講演論文集, 66, 163, 日本学術会議 「機械工学委員会・土木工学・建築学委員会合同IUTAM分科会」, 2022年
日本語, 本研究では電着樹脂含浸法により作製される炭素繊維強化複合材 (CFRP; Carbon Fiber Reinforced Plastics)の減衰特性の推定及び向上を目的とした繊維形状の最適化を行った．減衰を固有減衰容量 (SDC) によってモデル化し，減衰の数値計算に必要となる材料の減衰パラメータについては，実験モード解析と有限要素解析を併用して逆解析的に同定した．最適化では，第1次モードSDCを最大化する曲線状の繊維形状を探索した．また，曲線状の繊維形状で生じる板厚分布を推定し，有限要素解析に適用した．最適化で得られた繊維形状を適用した場合，いくつかの直線配向と比べて第1次固有振動数及びモードSDCが向上したため，曲線状の繊維配向は減衰の向上に有効であることがわかった．

電着樹脂含浸法によるCFRP板の曲線状強化繊維形状の最適設計
本田真也, 瀧澤拓, 片桐一彰, 佐々木克彦, 武田量
日本機械学会最適化シンポジウム(CD-ROM), 14th, U00010, 一般社団法人 日本機械学会, 2022年
日本語, Fiber shape optimization was performed to improve the damping properties of CFRP fabricated by electrodeposition resin molding (EDRM) method. Damping properties of composites were modeled by the specific damping capacity (SDC), and the material damping parameters required for numerical estimation were identified by an inverse analysis using results of experimental modal analysis and finite element analysis. In the optimization, a curvilinear fiber shape that maximizes the first mode SDC was explored. The thickness distribution due to the curvilinear fiber shape was estimated and applied to the finite element analysis. The fiber shapes obtained by the optimization improved the first natural frequencies and mode SDCs compared to several straight fiber orientations, indicating that the curved fiber orientation is effective in improving damping.

Effects of cellulose nanofiber content on impact properties of carbon fiber reinforced epoxy composites with the cellulose nanofiber dispersion layer
Kazuaki Katagiri, Naoko Kishimoto, Toshihiko Okumura, Sonomi Kawakita, Shinya Honda, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 29, 27, 6087, 6095, Informa UK Limited, 2022年, ［査読有り］
研究論文（学術雑誌）

Enhancement of impact properties of CFRP by inserting the non-hydrophobized cellulose nanofiber dispersion layer using an aqueous solution of epoxy resin
Kazuaki Katagiri, Toshihiko Okumura, Sonomi Kawakita, Hirosuke Sonomura, Shinya Honda, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 29, 26, 5350, 5359, Informa UK Limited, 2022年, ［査読有り］
研究論文（学術雑誌）

Dehydration dynamics model with Monte Carlo Method for a front-loading washer/dryer
Yasuyuki Joko, Shinya Honda
Mechanics of Advanced Materials and Structures, 29, 26, 4934, 4941, Informa UK Limited, 2022年, ［査読有り］
研究論文（学術雑誌）

Enhancement method of CFRP with the non-hydrophobized cellulose nanofibers using aqueous electrodeposition solution
Kazuaki Katagiri, Shinya Honda, Toshihiko Okumura, Shimpei Yamaguchi, Sonomi Kawakita, Kazuhiro Kume, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 29, 26, 4631, 4638, Informa UK Limited, 2022年, ［査読有り］
研究論文（学術雑誌）

Analysis and optimization for vibration of laminated rectangular plates with blended layers
Michio Innami, Shinya Honda, Katsuhiko Sasaki, Yoshihiro Narita
Composite Structures, 274, 114400, 114400, Elsevier BV, 2021年10月15日, ［査読有り］
研究論文（学術雑誌）

Manufacturing method of the morphing wing structure for UAV by CFRP with applying the electroformed resin molding method
Kazuaki Katagiri, Choong Sik Park, Shimpei Yamaguchi, Sonomi Kawakita, Kim Daekwi, Shinya Honda, Katsuhiko Sasaki, Masato Tamayama
36th Technical Conference of the American Society for Composites 2021: Composites Ingenuity Taking on Challenges in Environment-Energy-Economy, ASC 2021, 1, 3, 10, Destech Publications, Inc., 2021年09月20日
研究論文（国際会議プロシーディングス）

Tensile strength of CFRP with curvilinearly arranged carbon fiber along the principal stress direction fabricated by the electrodeposition resin molding
Kazuaki Katagiri, Shinya Honda, Shota Nakaya, Takahiro Kimura, Shimpei Yamaguchi, Hirosuke Sonomura, Tomoatsu Ozaki, Sonomi Kawakita, Mamoru Takemura, Katsuhiko Sasaki
Composites Part A: Applied Science and Manufacturing, 143, 2021年04月, ［査読有り］
英語, 研究論文（学術雑誌）

Ground structure based topology最適化による最適設計と評価
茅野 皓輝, 本田 真也, 片桐 一彰, 佐々木 克彦, 武田 量
Dynamics & Design Conference, 2021, 129, 一般社団法人 日本機械学会, 2021年
日本語, The aim of this study is to design an optimum CFRP lattice structure for application to a morphing wing. The ground structure based topology method is adopted as the optimization method, and the results are validated by experiments. In this study, to confirm the effectiveness of the optimization method, a simple hook shape was optimized and its stiffness and strength was compared by tensile tests. A 3D printer capable of laminating thermoplastic CFRP was used to fabricate the specimen. The results of tensile tests showed that the optimized specimens exhibited higher stiffness and strength than the reference model, confirming the effectiveness of the proposed method.

Enhancement of the bending strength of I-shaped cross-sectional beam of CFRP by dispersing cellulose nanofibers without hydrophobic treatment on the surface
Kazuaki Katagiri, Shinya Honda, Sayaka Minami, Shimpei Yamaguchi, Hirosuke Sonomura, Ozaki Tomoatsu, Sonomi Kawakita, Sohei Uchida, Masayuki Nezu, Mamoru Takemura, Yayoi Yoshioka, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 28, 11, 1089, 1097, 2021年, ［査読有り］
英語, 研究論文（学術雑誌）

Vibration characteristics of carbon fiber reinforced composites fabricated by electrodeposition molding method
Hiraku Takisawa, Naoki Hashimoto, Shinya Honda, Kazuaki Katagiri, Katsuhiko Sasaki, Ryo Takeda
15th International Conference on Motion and Vibration Control, MoViC 2020, Paper ID: 10018, 2020年12月07日, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Manufacturing method of the heat-storable carbon fiber reinforced plastics with applying trans-1,4-polybutadiene by using cellulose nanofibers and electrodeposition solution
Kazuaki Katagiri, Tsuyoshi Totani, Takuya Isono, Ryohei Goto, Shimpei Yamaguchi, Sonomi Kawakita, Tomoatsu Ozaki, Hirosuke Sonomura, Sayaka Minami, Shinya Honda, Katsuhiko Sasaki
Journal of Energy Storage, 31, 101636, 101636, Elsevier BV, 2020年10月, ［査読有り］
英語, 研究論文（学術雑誌）

An efficient manufacturing method for I-shaped cross-sectional CFRP beam with arbitrary arrangement of carbon fiber using electro-activated resin molding
Kazuaki Katagiri, Shinya Honda, Sayaka Minami, Daiki Kimu, Shimpei Yamaguchi, Takuya Ehiro, Ozaki Tomoatsu, Hirosuke Sonomura, Sonomi Kawakita, Mamoru Takemura, Yayoi Yoshioka, Katsuhiko Sasaki
Mechanics of Advanced Materials and Structures, 27, 18, 1541, 1550, 2020年09月15日, ［査読有り］
英語, 研究論文（学術雑誌）

Vibration optimization of laminated composite plates using genetic algorithm with various discrete fiber angles
M. Innami, Y. Narita, K. Sasaki, S. Honda
IOP Conference Series: Earth and Environmental Science, 419, 1, 2020年02月08日
研究論文（国際会議プロシーディングス）

電着樹脂含浸法により作製した複合材の振動減衰性能の推定と最適化
瀧澤 拓, 本田 真也, 片桐 一彰, 佐々木 克彦, 武田 量
Dynamics & Design Conference, 2020, 105, 105, 一般社団法人 日本機械学会, 2020年
日本語,

Our previous research found that CFRPs fabricated by the electrodeposition resin molding (ERM) method exhibited high damping properties. In this research, tailored fiber placement (TFP) was used to make curved fiber shapes, however, those shapes were limited to a parabola and a sine curve. Linear combination of radial basis functions (RBFs) were used to make more complex fiber shapes, and optimum fiber shapes are investigated to improve damping of CFRPs fabricated by the ERM method. Damping is modeled by the specific damping capacity (SDC) which is defined as the ratio of dissipated energy and maximum strain energy, and total damping properties of CFRPs are calculated using finite element analysis (FEA). Before optimization, material SDCs of a plain weave sheet and a TFP layer, which are compositions of CFRPs, are identified by particle swarm optimization (PSO) using the results of experimental modal analysis and FEA. Then, fiber shapes were optimized to maximize the first modal SDC of L-shaped and T-shaped plates using PSO with nonlinear dissipative term. Simultaneously, the thickness distribution which is caused by overlaps or gaps between curved fibers was estimated and applied to a finite element model for more accurate numerical estimation. The results showed that the present optimization of curved fiber shapes including estimation of thickness distribution improves the first modal SDC and decreases the volume of a TFP layer in comparison with unidirectional fiber shapes.

Fabrication of the twist morphing wing for the UAV by CFRP with applying the electrodeposition resin molding method
Kazuaki Katagiri, Shimpei Yamaguchi, Sonomi Kawakita, Shinya Honda, Katsuhiko Sasaki, Nozomu Kogiso, Masato Tamayama
AIAA Scitech 2020 Forum, 1 PartF, 2020年
研究論文（国際会議プロシーディングス）

Fabrication of heat-storable CFRP by incorporating trans-1,4-polybutadiene with the application of the electrodeposition resin molding method
Kazuaki Katagiri, Ryohei Gotoh, Tsuyoshi Totani, Takuya Isono, Shimpei Yamaguchi, Takuya Ehiro, Hirosuke Sonomura, Tomoatsu Ozaki, Sonomi Kawakita, Yayoi Yoshioka, Sayaka Minami, Shinya Honda, Katsuhiko Sasaki
Journal of Energy Storage, 26, 2019年12月, ［査読有り］
英語, 研究論文（学術雑誌）

Enhancement of the mechanical properties of the CFRP by cellulose nanofiber sheets using the electro-activated deposition resin molding method
Kazuaki Katagiri, Shinya Honda, Sayaka Minami, Shimpei Yamaguchi, Sonomi Kawakita, Hirosuke Sonomura, Tomoatsu Ozaki, Sohei Uchida, Masayuki Nedu, Yayoi Yoshioka, Katsuhiko Sasaki
Composites Part A: Applied Science and Manufacturing, 123, 320, 326, 2019年08月, ［査読有り］
英語, 研究論文（学術雑誌）

Process monitoring of deep drawing using machine learning
Tomohiro Tsuruya, Musashi Danseko, Katsuhiko Sasaki, Shinya Honda, Ryo Takeda
IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM, 2019-, 1227, 1232, Institute of Electrical and Electronics Engineers Inc., 2019年07月01日
英語, 研究論文（国際会議プロシーディングス）

複合材料の最適設計
本田真也
日本航空宇宙学会誌, 76, 5, 161, 166, 2019年05月, ［査読有り］, ［招待有り］, ［国内誌］
日本語, 研究論文（学術雑誌）

Multi-objective Optimization of Variable-stiffness Composites Fabricated by Tailored Fiber Placement Machine　　　　　　　　　　　　　　　
Shinya HONDA
EPI International Journal of Engineering, 2, 1, 14, 18, 2019年02月, ［査読有り］, ［筆頭著者, 責任著者］
英語, 研究論文（学術雑誌）

Enhancement of mechanical properties of CFRP manufactured by using electro-activated deposition resin molding method with the application of CNF without hydrophobic treatment
Kazuaki Katagiri, Katsuhiko Sasaki, Shinya Honda, Sayaka Minami, Shimpei Yamaguchi, Takuya Ehiro, Tomoatsu Ozaki, Hirosuke Sonomura, Sonomi Kawakita, Sohei Uchida, Masayuki Nezu, Yayoi Yoshioka
Composites Science and Technology, 169, 5, 203, 208, 2019年01月05日, ［査読有り］
英語, 研究論文（学術雑誌）

CFRP manufacturing method by using electro-activated deposition and the effect of reinforcement with carbon fiber circumferentially around the hole
Kazuaki Katagiri, Shinya Honda, Sayaka Minami, Yusuke Tomizawa, Daiki Kimu, Shimpei Yamaguchi, Takuya Ehiro, Tomoatsu Ozaki, Hirosuke Sonomura, Sonomi Kawakita, Mamoru Takemura, Yayoi Yoshioka, Katsuhiko Sasaki
COMPOSITE STRUCTURES, 207, 658, 664, 2019年01月, ［査読有り］
英語, 研究論文（学術雑誌）

Vibration characteristic of weight saving boom sprayer by using CFRP
Satoru TAMAKI, Shinya HONDA, Yohei HOSHINO, Katsuhiko SASAKI, Ryo TAKEDA
The Proceedings of the Dynamics & Design Conference, 2019, 102, 102, Japan Society of Mechanical Engineers, 2019年
研究論文（学術雑誌）

セルロースナノファイバーシートを適用したCFRPの強度特性
片桐 一彰, 山口 真平, 川北 園美, 奥村 俊彦, 本田 真也, 佐々木 克彦, 粂 和弘
M&M材料力学カンファレンス, 2019, 0, OS2103, 一般社団法人 日本機械学会, 2019年, ［査読有り］
日本語,

Carbon fiber reinforced plastics (CFRPs) have the properties of high strength and lightweight, and it has been applied for aircrafts or automobiles. Recently, cellulose nanofibers (CNFs) have been found to be superior in strength, thus, researches are being conducted to enhance the strength of CFRP by applying CNF. However, since CNF is hydrophilic, a hydrophobic treatment is inevitable. Previously, authors have reported that the electrodeposition resin molding method to manufacture CFRPs using the electrodeposition solution (EDS) containing a polymer with epoxy group, and the strength enhancement by CNFs could be possible. In this study, to improve the strength of CFRP conventionally manufactured by prepregs, a method was developed to disperse CNFs between prepregs using EDS. Carrying out the three-point bending test, the effects of the dispersed CNF on the bending stiffness and strength were clarified. As a result, the bending stiffness per weight (specific bending stiffness) increased in proportion to the weight fraction of CNF, and was approximately 2.9 times that of the CFRP specimen without CNF when the CNF weight fraction was 17 %. In the same manner, the bending strength per weight (specific bending strength) was approximately 1.6 times that of the CFRP specimen without CNF when the CNF weight fraction was 22 %.

電着樹脂含浸法を用いて作製した炭素繊維複合材の振動特性
橋本 直暉, 本田 真也, 片桐 一彰, 佐々木 克彦, 武田 量, 山口 真平, 川北 園美
Dynamics & Design Conference, 2019, 0, 103, 103, 一般社団法人 日本機械学会, 2019年, ［査読有り］
日本語, 研究論文（その他学術会議資料等）,

An autoclave molding with prepregs is the most general method of CFRP manufacturing. It is well known that this method is time and energy consuming and prevents the cost reduction of CFRPs. Therefore, aiming to improve CFRP productivity, some manufacturing methods without the autoclave have been proposed such as a vacuumed resin transfer molding（VaRTM）method. The authors have been also proposed a new CFRP manufacturing method that is an electro deposition resin molding（EDRM）method. The EDRM is an application of the electro deposition technology which has been used as a coating technology for automobiles, and it is suitable for mass productions. In our previous studies, static mechanical properties including stiffnesses and strength of CFRPs molded by the EDRM have been investigated, but their dynamic properties have not been done yet. Therefore, in this study, in order to evaluate the vibration characteristics of CFRPs produced by the EDRM, an experimental modal analysis and finite element analysis（FEA） were performed on CFRP specimens with straight and curved reinforcing fibers. The specimens were also manufactured by the VaRTM method and their vibration damping characteristics were compared. It was confirmed from numerical and experimental results that natural frequencies and eigenmode shapes agree well with high accuracy, and the FEA is useful for the specimen manufactured by the EDRM. It is also found that CFRPs produced by the EDRM has greater modal damping ratios than CFRPs by the VaRTM.

The bending properties of CFRP I-shaped cross-sectional beam with dispersing cellulose nanofibers on the surface
Kazuaki Katagiri, Shinya Honda, Daiki Kimu, Shimpei Yamaguchi, Tomoatsu Ozaki, Hirosuke Sonomura, Sonomi Kawakita, Sohei Uchida, Masayuki Nezu, Mamoru Takemura, Yayoi Yoshioka, Katsuhiko Sasaki
Proceedings of the American Society for Composites - 34th Technical Conference, ASC 2019, 2019年, ［査読有り］
研究論文（国際会議プロシーディングス）

Forming state recognition in deep drawing process with machine learning
Tomohiro TSURUYA, Musashi DANSEKO, Katsuhiko SASAKI, Shinya HONDA, Ryo TAKEDA
Journal of Advanced Mechanical Design, Systems, and Manufacturing (Manufacturing System), 13, 3, 2019年, ［査読有り］
英語, 研究論文（学術雑誌）

Optimum design of lay‐up configuration and ply drop‐off placement for tapered composite laminate　　　　　　　　　　　　　　　
Shinya Honda, Kosuke Takahashi, Tetsuya Higuchi, Ryotaro Takeuchi
Proceedings of ASC 33rd Annual Technical Conference/18th US-Japan Conference on Composite Materials, #89, 2018年09月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Identification of elastic edge condition for modeling vibration response of glass touch panel
Yoshihiko Kaito, Shinya Honda, Yoshihiro Narita
JVC/Journal of Vibration and Control, 24, 18, 4081, 4095, SAGE Publications Inc., 2018年09月01日
英語, 研究論文（学術雑誌）

Minimum Weight Design of Composite Panel under Aeroelastic Constraint　　　　　　　　　　　　　　　
Shinya Honda, Gaku Yokoyama
EPI International Journal of Engineering, 1, 1, 7, 12, 2018年02月, ［査読有り］
英語, 研究論文（学術雑誌）

Efficient manufacturing method of CFRP corrugation by using electro‐activated deposition resin molding
Kazuaki Katagiri, Shinya Honda, Shimpei Yamaguchi, Takuya Ehiro, Sonomi Kawakita, Hirosuke Sonomura, Tomoatsu Ozaki, Yayoi Yoshioka, Mamoru Takemura, Sayaka Minami, Katsuhiko Sasaki
Proceedings of ASC 33rd Annual Technical Conference/18th US-Japan Conference on Composite Materials, 5, 2819, 2831, 2018年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

電着を用いて樹脂含浸したCFRPにおける繊維曲線化が強度特性に及ぼす影響
片桐 一彰, 川北 園美, 木村 貴広, 武村 守, 吉岡 弥生, 佐々木 克彦, 本田 真也, 南 沙也加, 金 大貴, 山口 真平, 永廣 卓哉, 園村 浩介, 尾崎 友厚
年次大会, 2018, 0, J0430303, 一般社団法人 日本機械学会, 2018年, ［査読有り］
日本語,

For an efficient manufacturing method of CFRP, the electro-activated deposition molding method was developed. In this method, the carbon fiber fabric with curvilinear carbon fiber arrangement could be easily manufactured. The arbitrary arrangement of carbon fiber fabric can be woven by using embroidery machine, and was immersed in an electrodeposition solution containing an epoxy group and energized. Resin could be impregnated, after heat curing, CFRP was obtained. Impregnation is occurred in liquid, therefore, pressurizing process can be eliminated. So, autoclave became unnecessary, neither vacuum packing nor vacuum resin injection like VARTM (Vacuum assisted Resin Molding) method was required. In this study, tensile strength tests were conducted on the three kinds of CFRP specimens, with straight carbon fiber without hole, with hole in the center of specimen, and with controlling carbon fiber direction along principle stress. As a result, the maximum stress of the specimen with hole decreased to 82% of without hole. In case of the specimen with controlling carbon fiber direction along principle stress, the maximum stress recovered to 91% of without hole.

疎水化処理しないセルロースナノファイバーを利用したCFRPの衝撃強度の向上
片桐 一彰, 佐々木 克彦, 粂 和弘, 山口 真平, 永廣 卓哉, 園村 浩介, 尾崎 友厚, 長谷川 泰則, 奥村 俊彦, 南 沙也加, 本田 真也
M&M材料力学カンファレンス, 2018, 0, OS0712, 一般社団法人 日本機械学会, 2018年, ［査読有り］
日本語,

Carbon fiber reinforced plastics (CFRP) has high strength and light weight properties. However, for impact load, an improvement has been required since resin matrix is weak. For CFRP manufacturing, the authors have developed the electro-activated deposition resin molding (EDRM) method to impregnate the resin, and the strength of CFRP for the static load was increased by the application of CNF without hydrophobic treatment. In this study, applying EDRM method, the impact strength of CFRP was improved by using cellulose nanofiber (CNF) without hydrophobic treatment. The electro-activated deposition solution contains polymer with epoxy group. The method was to apply the mixture of CNF dispersion and electro-activated deposition solution to the prepreg. After thermal curing, the CFRP which has CNF layer on the surface was obtained. The three-point bending test was carried out to confirm the static strength, and the impact strength was also confirmed by the Charpy impact testing.

Resin molding by using electro-activated deposition for efficient manufacturing of carbon fiber reinforced plastic
Kazuaki Katagiri, Katsuhiko Sasaki, Shinya Honda, Hikaru Nakashima, Yusuke Tomizawa, Shimpei Yamaguchi, Tomoatsu Ozaki, Hirosuke Sonomura, Atsushi Kakitsuji
COMPOSITE STRUCTURES, 182, 15, 666, 673, 2017年12月, ［査読有り］
英語, 研究論文（学術雑誌）

CFRP manufacturing method using electrodeposition resin molding for curvilinear fiber arrangements
Kazuaki Katagiri, Katsuhiko Sasaki, Shinya Honda, Hikaru Nakashima, Shimpei Yamaguchi, Tomoatsu Ozaki, Hirosuke Sonomura, Atsushi Kakitsuji
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 102, 108, 116, 2017年11月, ［査読有り］
英語, 研究論文（学術雑誌）

Identification of Elastic Edge Condition for Modelling Vibration Response of Glass Touch Panel　　　　　　　　　　　　　　　
Yoshihiko Kaito, Shiya HONDA, Yoshhiro Narita
Journal of Vibration Control, 102, 108, 116, 2017年11月, ［査読有り］
英語, 研究論文（学術雑誌）

電着を用いて樹脂含浸したCFRPへのセルロースナノファイバー添加の効果
片桐 一彰, 吉岡 弥生, 垣辻 篤, 佐々木 克彦, 本田 真也, 冨沢 祐介, 南 沙也加, 山口 真平, 永廣 卓哉, 尾﨑 友厚, 園村 浩介
M&M材料力学カンファレンス, 2017, 0, OS1023, 一般社団法人 日本機械学会, 2017年, ［査読有り］
日本語,

High strength properties of cellulose nanofiber (CNF) are well known, and it has also been already reported that the strength of CFRP could be improved by dispersing CNF in the matrix resin. However, in the previous work, hydrophobic treatment was required to disperse CNF due to its hydrophilicity. In this study, based on a novel manufacturing method of CFRP by using electro-activated deposition resin molding, CNF without hydrophobic treatment was well dispersed on the surface of CFRP. The process was, firstly, the non-crimp carbon fiber fabric was immersed in an electro-activated deposition solution which includes epoxy groups. And, the fabric was electrically energized and electrodepositioned. Secondly, the CNF dispersion was applied and coated to the surface of CFRP. The electrodeposition solution used in this method is an environmentally friendly aqueous solvent. CNF has good dispersibility in water, hydrophobic treatment was not necessary. After heat curing, the three-point bending test was conducted to confirm the strength properties. As a result, it was found that the flexural modulus was improved by 49% and the bending strength was improved by 41%, comparing to the CFRP without CNF on the surface.

Vibration analysis and optimization of sandwich composite with curvilinear fibers
S. Honda, Y. Narita
Journal of Physics: Conference Series, 744, 1, Institute of Physics Publishing, 2016年10月03日, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

ファイバー縫付機による熱可塑性複合材料の作製
宮島 渉, 村上 大地, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2016, 83, 84, 一般社団法人 日本機械学会, 2016年
日本語

Vibration characteristics and optimization for panel elastically supported in mobile phone　　　　　　　　　　　　　　　
Yohihiko Kaito, Shinya Honda, Yoshihiro Narita
Journal of Physics: Conference Series, 744, 1, 2016年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Multi-objective optimization for vibration suppression of smart laminated composites　　　　　　　　　　　　　　　
Shinya Honda, Yoshihiro Narita, Itsuro Kajiwara
Mechanical Engineering Journal, Special Issue on Systems Design for Motion and Vibration Control (MEJ:DR), 2, 1, DOI: 10.1299/mej.14-00561, 2016年01月, ［査読有り］, ［筆頭著者］
英語, 研究論文（学術雑誌）

Vibration optimization of composite sandwich plate with soft core by using refined zigzag theory　　　　　　　　　　　　　　　
S. Honda, T. Kumagai, Y. Narita
Proceedings of the 16th Asian Pacific Vibration Conference (APVC2015), USB, 2015年11月, ［査読有り］, ［筆頭著者］
英語, 研究論文（国際会議プロシーディングス）

双安定性を有する複合材シェルのスナップスルー変形に関する多目的最適化
本田 真也, 髙橋 圭佑, 成田 吉弘
日本機械学会論文集, 81, 824, 1, 15, 2015年04月, ［査読有り］, ［筆頭著者］, ［国内誌］
日本語, 研究論文（学術雑誌）

Adaptive Control for Vibration Suppression by Using Self-organization Map
Shinya Honda, Yoshihiro Narita, Naohiro Kida
2015 10TH ASIAN CONTROL CONFERENCE (ASCC), USB, 5, 2015年, ［査読有り］, ［筆頭著者］
英語, 研究論文（国際会議プロシーディングス）

2201 Taguchi methodの複合材料構造設計への適用(材料・構造)
田中 聡一朗, 本田 真也, 成田 吉弘
最適化シンポジウム：OPTIS, 2014, _2201, 1_-_2201-6_, 一般社団法人日本機械学会, 2014年
日本語, The carbon fiber reinforced plastics have been widely used to manufacture the precise structure, such as antenna reflectors, due to their lightweight and high dimensional stability as compared to the metallic materials. When one uses CFRP laminates to antenna reflectors for space telescopes, thermal deformation invokes a serious problem. This deformation can be suppressed if the laminates are stacked symmetrically. It is known, however, that CFRP laminates show unpredictable deformation caused by the ply angle misalignments. Since the ply misalignment is unavoidable, it is important to choose the lay-ups that mitigate the misalignment effects. In this study, the lay-ups and supporting positions are optimized in robust sense by using Taguchi method (TM). Although it is not possible to take into account the effect of interactions between parameters. This is because TM decreases the optimization accuracy in some cases. Therefore, Taguchi method with statistical modeling (TM/S) which considers the interaction effects by using statistical estimated model is proposed. Finally, the performance of TM and TM/S are compared each other.

1216 スマート積層複合材の振動制御に関する多目的最適化(多目的最適化)
本田 真也, 渡邊 一希, 成田 吉弘
最適化シンポジウム：OPTIS, 2014, _1216, 1_-_1216-5_, 一般社団法人日本機械学会, 2014年
日本語, The present paper proposes a multi-objective optimization technique for smart laminated composites to maximize two conflicting objectives. The first objective is the performance of active vibration control of smart composite with piezoelectric (PZT) actuators. The second is the fundamental frequency of smart structures related to the performance of passive vibration control. Both performances of active and passive vibration control are maximized simultaneously. The vibration suppression of smart structures strongly depends on both actuator placements and vibration mode shapes. It is possible to design vibration mode shapes for laminated fibrous composites since their anisotropy for whole thickness is tailorable by arranging fiber orientation angle in each layer. This allows the smart structure with laminated composite to archive higher performance of vibration suppression than those with isotropic materials. However, the optimized structure results in lower natural frequencies than composites with typical fiber orientation angles since an effective input of control force from actuators is realized for the structure with lower stiffness. This reveals that there is a trade-off relation for smart composite structures between the performance of active vibration suppression and natural frequencies. To disclose this relation, the present study applies the effective multi-objective optimization technique, the refined non-dominated genetic algorithm (NSGAII), and obtains Pareto optimal solutions. Calculated results are successfully validated by a comparison with those from the real-tune control experiment where a laser excitation technique which is effective to small sized structures is used.

2202 積層構成最適化問題の性質を考慮したbenchmark関数の提案(材料・構造)
林 隼也, 本田 真也, 成田 吉弘
最適化シンポジウム：OPTIS, 2014, _2202, 1_-_2202-6_, 一般社団法人日本機械学会, 2014年
日本語, The advantage of the carbon fiber reinforced plastics (CFRP) is tailoring capability for their mechanical properties by changing the lay-up designs. Recently, meta-heuristic methods (e.g., a genetic algorithm (GA) and a particle swarm optimization (PSO)) have been often employed in such lay-up design problems. In addition to the proper choice among meta-heuristic methods, there are some parameters to be decided carefully to achieve good performance in optimization. In practical problems involving heavy computation costs, however, it is difficult to judge which method is appropriate to a given specific problem and what values are reasonable for the accompanying parameters. In this study, a new benchmark function is proposed to simulate global behaviors of the lay-up design problem and to give criterion for proper choice of the parameters in GA, PSO and the layerwise optimization (LO) methods. In numerical results, performances of the three methods are compared and the proposed benchmark function is shown to be quite effective in simulating the lay-up optimization problem.

Analysis and Lay-up Optimization for Vibration of Laminated Plates with Complex Shape and Edge Conditions
Yoshihiro Narita, Shinya Honda, Kosuke Owatari
INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS ENGINEERING (ICMME 2014), 436, 442, 2014年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Optimum Design and Experimental Evaluation for Smart Micro-composites by Using Laser Excitation Technique　　　　　　　　　　　　　　　
Shinya HONDA, Kazuki WATANABE, Yoshihiro NARITA, Itsuro KAJIWARA
Proceedings of the 9th International Symposium on Vibrations of Continuous Systems (ISVCS9), 28, 30, 2013年07月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Analysis and Lay-up Optimization for Vibration of Laminated Composite Plate with Rigid Body Attachments　　　　　　　　　　　　　　　
Yoshihiro NARITA, Shinya HONDA, Takahiro FUNAMIZU
Proceedings of the 9th International Symposium on Vibrations of Continuous Systems (ISVCS9), 55, 57, 2013年07月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Vibration Suppression of Automobile Composite Panels　　　　　　　　　　　　　　　
Yoshihiro NARITA, Daisuke NARITA, Shinya HONDA
Proceedings of the 15th Asia Pacific Vibration Conference, W2_302_1, USB, 2013年06月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Vibration Analysis for Thermally Induced Bi-stable Composite Shallow Shell　　　　　　　　　　　　　　　
Keisuke TAKAHASHI, Shinya HONDA, Yoshihiro NARITA
Proceedings of the 15th Asia Pacific Vibration Conference, T1_301A_1, 2013年06月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Vibration Optimization of Fibrous Composite Reinforced by Curvilinear Fibers　　　　　　　　　　　　　　　
Ryo Tsubata, Shinya HONDA, Yoshihiro NARITA
Proceedings of 15th Asia Pacific Vibration Conference (APVC-15), M3_303B_2, USB, 2013年06月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Maximization of Vibration Control Performance for Micro Smart Composites with the Laser Excitation Technique　　　　　　　　　　　　　　　
Kazuki WATANABE, Shinya HONDA, Yoshihiro NARITA, Itsuro KAJIWARA
Proceedings of the 15th Asia Pacific Vibration Conference, M1_303B_1, USB, 2013年06月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Multi-objective optimization of curvilinear fiber shapes for laminated composite plates by using NSGA-II
Shinya Honda, Teruki Igarashi, Yoshihiro Narita
Composites Part B: Engineering, 45, 1, 1071, 1078, 2013年02月, ［査読有り］
英語, 研究論文（学術雑誌）

Frequency maximization of laminated sandwich plates under general boundary conditions using layerwise optimization method with refined zigzag theory
Shinya Honda, Takahito Kumagai, Kazuya Tomihashi, Yoshihiro Narita
Journal of Sound and Vibration, 332, 24, 6451, 6462, 2013年, ［査読有り］
英語, 研究論文（学術雑誌）

Experimental Modal Analysis of Passive Constrained Layer Damping Plate Using CFRP Material　　　　　　　　　　　　　　　
Kazuya TOMIHASHI, Shinya HONDA, Yoshihiro NARITA
Proceedings of 8th Asian-Australasian Conference on Composite Materials (ACCM-8), CD-ROM, 2012年11月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Multidisciplinary Design Optimization of Smart Composite Shell for Vibration Suppression　　　　　　　　　　　　　　　
Kou KOSAKA, Shinya HONDA, Yoshihiro NARITA
Proceedings of 8th Asian-Australasian Conference on Composite Materials (ACCM-8), CD-ROM, O-SMA-093, 2012年11月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Multi-objective Optimization of Fibrous Composites with Curvilinear Fibers for Mechanical Properties and Fiber Geometries　　　　　　　　　　　　　　　
Teruki IGARASHI, Shinya HONDA, Yoshihiro NARITA
Proceedings of 8th Asian-Australasian Conference on Composite Materials (ACCM-8), CD-ROM, O-DES-142, 2012年11月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Static and Vibration Optimization of Composite Structures with 3-D Local Anisotropy　　　　　　　　　　　　　　　
Yuta ISHIBASHI, Shinya HONDA, Yoshihiro NARITA
Proceedings of 8th Asian-Australasian Conference on Composite Materials (ACCM-8), CD-ROM, O-DES-094, 2012年11月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Vibration Characteristics of Bi-stable Asymmetrically Laminated Composite Shell　　　　　　　　　　　　　　　
Keisuke TAKAHASHI, Shinya HONDA, Yoshihiro NARITA
Proceedings of 8th Asian-Australasian Conference on Composite Materials (ACCM-8), CD-ROM, O-DES-092, 2012年11月, ［査読有り］
研究論文（国際会議プロシーディングス）

Vibration Optimization of Laminated Composite Rectangular Plates with General Elastic Edge Restraints　　　　　　　　　　　　　　　
Yoshihiro NARITA, Shinya HONDA
Proceedings of the US-Japan conference of Composite Materals ASTM-D30 Meeting, 284, 295, 2012年10月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

VIBRATION ANALYSIS OF LAMINATED VGCF/ALUMINUM CIRCULAR PLATES WITH EXPERIMENTAL VERIFICATION　　　　　　　　　　　　　　　
Yoshihiro NARITA, Shinya HONDA, Naoaki KOYA
Proceedings of the International Conference on Mechanics of Nano, Micro and Macro Composite Structures, CD-ROM, No.427, 2012年06月, ［査読有り］
英語, 研究論文（学術雑誌）

Multidisciplinary design optimization for smart micro-composite and experimental validation by using laser excitation technique
Shinya Honda, Kazuki Watanabe, Yoshihiro Narita, Itsuro Kajiwara
ASME 2012 5th Annual Dynamic Systems and Control Conference Joint with the JSME 2012 11th Motion and Vibration Conference, DSCC 2012-MOVIC 2012, 3, 339, 347, 2012年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Natural frequencies and vibration modes of laminated composite plates reinforced with arbitrary curvilinear fiber shape paths
Shinya Honda, Yoshihiro Narita
JOURNAL OF SOUND AND VIBRATION, 331, 1, 180, 191, 2012年01月, ［査読有り］
英語, 研究論文（学術雑誌）

遠心力を受ける複合材積層板の振動解析
和田 将明, 本田 真也, 成田 吉弘
日本機械学会論文集(C編), 78, 789, 1586, 1595, 2012年, ［査読有り］
日本語, 研究論文（国際会議プロシーディングス）

1106 小型スマート複合材の振動制御性能に関する統合最適化とレーザー加振技術による実験的検証(振動・動的応答)
渡邉 一希, 本田 真也, 成田 吉弘, 梶原 逸朗
最適化シンポジウム：OPTIS, 2012, _1106, 1_-_1106-5_, 一般社団法人日本機械学会, 2012年
日本語, The present paper proposes a multidisciplinary design optimization method for smart micro-composite structures to maximize vibration suppression performance, and an innovative experimental technique with laser excitation is applied to validate numerical results. The smart structures are composed of graphite/epoxy (CFRP) composites and PZT actuators. The performance of smart structures for vibration suppression strongly depends on vibration mode shapes and PZT actuator placements. It is possible to specify vibration mode shapes for the laminated composite by varying the stacking angles of reinforcing fibers, and both fiber orientation angles and PZT placements are optimized simultaneously by using a simple Genetic Algorithm (GA) method. Then, the calculated results are validated by an experiment using laser excitation which excites the micro-sized structures with high reproducibility since the laser is precisely irradiated to the structure at same position with same power repeatedly.

Multidisciplinary Design Optimization for Vibration Control of Smart Laminated Composite Structures
Shinya Honda, Itsuro Kajiwara, Yoshihiro Narita
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 22, 13, 1419, 1430, 2011年09月, ［査読有り］
英語, 研究論文（学術雑誌）

Design of smart composite for vibration suppression using lamination parameters
Honda S, Kosaka K, Narita Y, Kajiwara I
Proceedings of ICCM International Conferences on Composite Materials, IF0541, 2011年08月, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Multidisciplinary Design Optimization of Surface Shapes and Lay-Up Configurations for Laminated Composite Shells
HONDA Shinya, KATO Takeru, NARITA Yoshihiro, NARITA Daisuke
J Syst Des Dyn (Web), 5, 8, 1662, 1673, The Japan Society of Mechanical Engineers, 2011年, ［査読有り］
英語, Shapes and lay-up configurations of laminated composite shallow shells are optimized simultaneously to maximize the fundamental frequency by a simple genetic algorithm method. The surface shape is defined by a cubic polynomial and this makes it possible to express a variety of surfaces with inconstant curvature radii by varying the values of the coefficients for each polynomial term. The coefficients and the lay-up configurations of the laminated shells are directly employed as design variables, and constraints are imposed on the coefficients and curvature radii to maintain the shallowness of the shells. The frequencies are calculated by using the Ritz method due to its flexibility with surface shapes. The results of the present analysis agreed well with experimental and finite element analysis results in terms of frequencies and mode shapes. The obtained optimum solutions resulted in higher fundamental frequencies than for shells with commonly emplyed surface shapes and lay-up configurations.

Vibration design of laminated fibrous composite plates with local anisotropy induced by short fibers and curvilinear fibers
Shinya Honda, Yoshihiro Narita
COMPOSITE STRUCTURES, 93, 2, 902, 910, 2011年01月, ［査読有り］
英語, 研究論文（学術雑誌）

Multidisciplinary Design Optimization of Surface Shapes and Lay-Up Configurations for Composite Laminated Shells
Shinya Honda
日本機械学会論文集Ｃ編, 77, 777, 1793, 1802, 一般社団法人 日本機械学会, 2011年, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）, Shapes and lay-up configurations of composite laminated shallow shells are optimized simultaneously to maximize the fundamental frequency by a simple genetic algorithm method. The shell shape is defined by a cubic polynomial and this makes it possible to express various shapes of shells with inconstant curvature radii by varying the value of coefficient for each term. The coefficients and the lay-up configuration of the laminated shell are directly employed as design variables, and constraints are imposed on the coefficients and curvature radii to keep shells shallow. The frequencies are ca...

The Effect of Internal Line Supports on Optimum Lay-up Design for Vibration of Laminated Rectangular Plates
Yoshihiro Narita, Shinya Honda
DYNAMICS FOR SUSTAINABLE ENGINEERING, VOL 2, 987, 995, 2011年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Vibration Testing Method of Smart Micro-Composite with Laser Excitation
Shinya Honda, Yoshihiro Narita, Itsuro Kajiwara, Satoshi Nakamura
DYNAMICS FOR SUSTAINABLE ENGINEERING, 2011, VOL 3, 1462, 1470, 2011年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

実験計画法を用いた複合材料構造の多目的最適化(<特集>D&D2009)
Shinya Honda
日本機械学会論文集Ｃ編, 76, 765, 1062, 1067, 一般社団法人日本機械学会, 2010年, ［国内誌］
日本語, 研究論文（学術雑誌）

Analytical and experimental study for vibration of laminated VGCF/Al circular plates　　　　　　　　　　　　　　　
Naoaki Koya, Shinya Honda, Katsuhiko Sasaki, Yoshihiro Narita
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, 1, 721, 724, ACCM-7 Organizing Committee, 2010年
英語, 研究論文（国際会議プロシーディングス）

Analysis, experiment and cost design for vibration of hybrid laminated plates　　　　　　　　　　　　　　　
Takashi Koshiba, Shinya Honda, Yoshihiro Narita
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, 2, 827, 830, ACCM-7 Organizing Committee, 2010年
英語, 研究論文（国際会議プロシーディングス）

Vibration optimization of laminated parallelogram plates with experimental verification　　　　　　　　　　　　　　　
Toshinori Fujii, Shinya Honda, Yoshihiro Narita
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, 1, 773, 776, ACCM-7 Organizing Committee, 2010年
英語, 研究論文（国際会議プロシーディングス）

Optimization of fibrous composite plates for in-plane strength using curvilinear fibers　　　　　　　　　　　　　　　
Shinya Honda, Kosuke Owatari, Yoshihiro Narita
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, 1, 769, 772, ACCM-7 Organizing Committee, 2010年
英語, 研究論文（国際会議プロシーディングス）

曲線状繊維によって強化された複合材積層板の座屈解析(<特集>D&D2009)
Shinya Honda
日本機械学会論文集Ｃ編, 76, 765, 1056, 1061, 一般社団法人日本機械学会, 2010年, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）

曲線状繊維によって強化された複合材積層板の応力集中最小化
Shinya Honda
日本機械学会論文集 A編, 76, 769, 1139, 1146, 一般社団法人日本機械学会, 2010年, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）

LAYERWISE OPTIMIZATION FOR VIBRATION OF AUTOMOBILE COMPOSITE PANELS
Yoshihiro Narita, Shinya Honda, Claire Couppie
PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION, 2010年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

MULTIDISCIPLINARY DESIGN OPTIMIZATION OF ACTUATOR ARRANGEMENTS, LAY-UP CONFIGURATIONS AND CONTROL SYSTEMS FOR SMART LAMINATED COMPOSITE STRUCTURES
Shinya Honda, Itsuro Kajiwara, Yoshihiro Narita
PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS, ADAPTIVE STRUCTURES AND INTELLIGENT SYSTEMS, 2010, VOL 2, 3661, 315, 321, 2010年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Maximizing the Fundamental Frequency of Laminated Composite Plates with Optimally Shaped Curvilinear Fibers
HONDA Shinya, NARITA Yoshihiro, SASAKI Katsuhiko
J Syst Des Dyn (Web), 3, 6, 867, 876, The Japan Society of Mechanical Engineers, 2009年, ［査読有り］
英語, A new design method is proposed here to maximize the fundamental frequency of laminated composite plates reinforced by curvilinear fibers. Spline functions represent arbitrarily shaped fibers and the Ritz method generates frequency equations. The optimum curvilinear shapes are searched for the maximum fundamental frequencies using a genetic algorithm, and increments of data points which define the spline shape are used as design variables under the limited range of undulation. Comparison of the present analysis method gives good agreement with the finite element method in terms of natural frequencies and vibration modes, and the optimized results show that the present plate with optimally shaped curvilinear fibers gives higher or equal fundamental frequencies than those of conventional plates with optimally oriented parallel fibers.

Discrete Optimization for Vibration Design of Composite Plates by Using Lamination Parameters
Shinya Honda, Yoshihiro Narita, Katsuhiko Sasaki
ADVANCED COMPOSITE MATERIALS, 18, 4, 297, 314, 2009年, ［査読有り］
英語, 研究論文（学術雑誌）

繊維形状最適化による複合材積層板の固有振動数最大化(<特集>D&D 2008)
Shinya Honda
日本機械学会論文集Ｃ編, 75, 753, 1244, 1250, 一般社団法人日本機械学会, 2009年, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）

J0405-1-6 曲線状繊維によって強化された複合材シェルの振動・座屈解析(知的材料・構造システム(1) 複合材料関連)
本田 真也, 大西 良昌, 成田 吉弘
年次大会講演論文集, 2009, 371, 372, 一般社団法人日本機械学会, 2009年
日本語, Many natural materials, such as bones and trees, indicate non-homogenous anisotropy, and have higher performance than the homogenous one. To exploit those properties for design of artificial engineering structures, laminated composite shells reinforced by curvilinear fibers are analyzed to reveal their vibration and buckling properties. They have local anisotropy due to curved fibers, and show different properties from homogenous one. Projections of contour lines for cubic polynomial surfaces to the horizontal plane represent curvilinear fibers. This make is possible to represent multi-valued function and have large degree of freedom. The natural frequencies and critical buckling loads are calculated by using FEM, where the element coordinate system is translated to the tangential direction of the contour lines in the element centroids at each element. The results are given for a cylindrical shell and a shell with non-uniform curvature. It turns out that the curvilinear fibers have strong possibility to improve vibration and buckling performance of composite shell structures.

Layerwise Optimization of Laminated Comoposite Structures by Using a General-Purpose FEM Software
Shinya Honda
日本機械学会論文集Ｃ編, 74, 743, 1926, 1927, 一般社団法人日本機械学会, 2008年07月, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）, The lay-up optimization problem of laminated composite structures is solved by using a general-purpose finite element method software ANSYS to confirm the availability of the layerwise optimization (LO) method. In the LO method that the authors proposed, all layers are assumed first to have zero stiffness but mass and then one dimensional search is applied in each layer starting from the outermost layer to the innermost layer sequentially. After the first cycle solution is found for all the layers, the process is repeated with keeping the angles found in the previous process till the lay-up...

Identification of Boundary Conditions in Shallow Shells by Using Frequency Data
Shinya Honda
日本機械学会論文集Ｃ編, 74, 742, 1676, 1677, 一般社団法人日本機械学会, 2008年06月, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）, A technique is proposed for identifying both in-plane and out-of-plane boundary conditions of laminated composite, thin shallow shells of rectangular planform. The values of natural frequencies are generally governed by the aspect ratio, curvature ratios and material constants that are measurable relatively easily, but it is very difficult to estimate accurately the boundary conditions that imply the degree of constraints along the edges. Particularly, unlike flat plates, the in-plane and out-of-plane displacements are coupled in the shell, and this increases significantly the number of pos...

Design for the Maximum Natural Frequency of Laminated Composite Plates by Optimally Distributed Short Fibers
Shinya Honda
日本機械学会論文集Ｃ編, 74, 741, 1049, 1055, 一般社団法人日本機械学会, 2008年05月, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）, A new design method of functional fiber reinforced plastics (FRP) which imitate micro structures of natural materials such as bones and shells is proposed in this work. The material has local anisotropy induced by optimally distributed short fibers which are defined in each element of the finite element method. To design such locally anisotropic thin plates, the present optimum design method combines a genetic algorithm method (GA) with layerwise optimization (LO) concept. The LO concept reduces multi-layer optimization into iterations of single-layer optimizations and the GA is used for a ...

Buckling analysis of composite rectangular plates reinforced by curvilinear fibers　　　　　　　　　　　　　　　
Yoshimasa Oonishi, Shinya Honda, Yoshihiro Narita, Katsuhiko Sasaki
Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008, 315, 318, 2008年
英語, 研究論文（国際会議プロシーディングス）

Vibration analysis of laminated composite plates reinforced by arbitrarily shaped curvilinear fibers　　　　　　　　　　　　　　　
Shinya Honda, Yoshimasa Oonishi, Yoshihiro Narita, Katsuhiko Sasaki
Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008, 347, 350, 2008年
英語, 研究論文（国際会議プロシーディングス）

Vibration analysis of fibrous composite plates reinforced along arbitrary curvilinear fiber shapes　　　　　　　　　　　　　　　
Shinya Honda, Yoshimasa Oonishi, Yoshihiro Narita, Katsuhiko Sasaki
15th International Congress on Sound and Vibration 2008, ICSV 2008, 2, 1514, 1521, 2008年
英語, 研究論文（国際会議プロシーディングス）

汎用FEMの援用による複合耕料構造の層別最適化
本田 真也
日本機械学会論文集C編(NOTE) 第74巻第743号, 1926, 1927, 2008年, ［査読有り］
研究論文（学術雑誌）

Design for the Maximum Natural Frequency of Laminated Composite Plates by Optimally Distributed Short Fibers
HONDA Shinya, NARITA Yoshihiro
J Syst Des Dyn (Web), 2, 6, 1195, 1205, The Japan Society of Mechanical Engineers, 2008年, ［査読有り］
英語, A new design method is proposed for vibration of functional fibrous composite plates, which imitate micro structures of natural materials such as bones and shells. The material has local anisotropy induced by optimally distributed short fibers which are defined in each element of the finite element method. To design such locally anisotropic plates, the present optimum design method combines a genetic algorithm method (GA) with a layerwise optimization (LO) concept. The LO concept reduces a multi-layer optimization into iterations of a single-layer optimization, and the GA is used for the single-layer optimization to determine fiber orientation angles in each element. The fundamental frequency of the plates is chosen as the objective function to be maximized. It was revealed that the present plates give higher fundamental frequencies than conventional plates reinforced by parallel straight fibers. Further optimally distributed short fibers indicated specific orientations even though no constraint was imposed on those directions.

Vibration Analysis of Composite Rectangular Plates Reinforced along Curved Lines
HONDA Shinya, OONISHI Yoshimasa, NARITA Yoshihiro, SASAKI Katsuhiko
J Syst Des Dyn (Web), 2, 1, 76, 86, The Japan Society of Mechanical Engineers, 2008年, ［査読有り］
英語, In the past few decades, composite materials composed of straight fibers and polymer matrix have gained their status as the most promising material for light-weight structures. Technical merit of the composites as tailored material also provided practical advantages in the optimum design process. Recently, it is reported that the fabrication machine has been developed to make curved fibers embedded in the matrix material. Based on such technical advancement, this paper proposes an analytical method to study vibration of composite rectangular plates reinforced along curved lines. The approach is based on the Ritz method where variable fiber direction can be accommodated. For this purpose, the fibers continuously changing their direction are formulated as the variable bending stiffness in the total potential energy. A frequency equation is derived by the Ritz minimizing process, and frequency parameters are calculated as the eigenvlaues in the eigenvalue problem. In numerical results, the accuracy of the method is presented by comparing present results with FEM results. The advantages of present plate are confirmed by comparing natural frequencies and mode shapes with those of conventional composite and isotropic plates, and the effectiveness of the new solution to the most recent problem is demonstrated.

Optimization for the maximum buckling loads of laminated composite plates - Comparison of various design methods
Shinya Honda, Yoshihiro Narita, Katsuhiko Sasaki
ADVANCES IN COMPOSITE MATERIALS AND STRUCTURES, PTS 1 AND 2, 334-335, 89, +, 2007年, ［査読有り］
英語, 研究論文（国際会議プロシーディングス）

Optimization for the Maximum Buckling Loads of Laminated Composite Plates — Comparison of Various Design Methods　　　　　　　　　　　　　　　
Shinya HONDA, Yoshihiro NARITA, Katsuhiko SASAKI
Key Engineering Materials, 334-335, 89, 92, 2007年, ［査読有り］
英語, 研究論文（学術雑誌）

Buckling Optimization of Laminated Composite Plates by Minimizing Errors of the Discrete Lamination Parameters
Shinya Honda
日本機械学会論文集 A編, 72, 720, 1262, 1269, 一般社団法人日本機械学会, 2006年08月, ［査読有り］, ［国内誌］
日本語, 研究論文（学術雑誌）, The fiber reinforced plastics (FRP) have been utilized in various structural applications of automobile and aerospace industries because they have excellent features of high specific strength and stiffness ratios. The FRP composites are fabricated typically by stacking orthotropic layers, each of which is composed of reinforcing fibers and matrix materials. In this work, an optimum design approach is proposed to optimize buckling performance of laminated composite plates by using the lamination parameters. The approach consists of two parts: the first part is to optimize the lamination para...

P98 積層パラメータの離散誤差最小化による複合材料板の座屈特性最適化(複合材料,ポスター講演3)
本田 真也, 成田 吉弘, 佐々木 克彦
材料力学部門講演会講演論文集, 2005, 619, 620, 一般社団法人日本機械学会, 2005年
日本語, Fiber Reinforced Plastics (FRP) has been utilized in applications of automobile and aircraft structures because of the high specific strength and stiffness ratios. These FRP composites are typically fabricated by stacking orthotropic laminas, each composed of reinforcing fibers and matrix materials. In this work, an optimum design approach is presented by using the lamination parameters with the gradient method, and is used to optimize buckling behaviors of laminated composite plates. This approach can derive the optimum lay-up design from the calculated values of the parameters, and yields the maximum buckling loads with corresponding optimum lay-ups (fiber orientation angles).

振動特性を用いた逐次近似多目的最適化による異方性材料特性の同定
服部雅人, 本田真也, 武田量, 佐々木克彦, Dynamics & Design Conference (CD-ROM), 2024, 2024年

逐次近似最適化による可変軸剛性複合材の座屈特性設計
WANG Xin, 本田真也, 武田量, 佐々木克彦, 日本機械学会設計工学・システム部門講演会論文集(CD-ROM), 34th, 2024年

射影変換を用いた曲線状強化繊維を有する複合材の振動最適化
久嶋拓也, 本田真也, 佐々木克彦, 武田量, Dynamics & Design Conference (CD-ROM), 2024, 2024年

電着樹脂含浸法により作製したCFRPの電気的特性の評価
清水佑音, 本田真也, 佐々木克彦, 武田量, 片桐一彰, Dynamics & Design Conference (CD-ROM), 2023, 2023年

絞り加工により成型した局所異方性を有する熱可塑性複合材の最適設計に関する研究
本田 真也, 天田財団助成研究成果報告書, 35, 356, 2022年
公益財団法人 天田財団, 日本語

Ground structure based topology最適化による最適設計と評価
茅野皓輝, 本田真也, 片桐一彰, 佐々木克彦, 武田量, Dynamics & Design Conference (CD-ROM), 2021, 2021年

鋳造板の熱変形を考慮したトポロジー最適構造設計
上田修生, 本田真也, 佐々木克彦, 武田量, 鈴木逸人, 戸羽篤也, 鶴谷知洋, 日本材料学会学術講演会講演論文集(CD-ROM), 70th, 2021年

電着樹脂含浸法により作製した複合材の減衰推定と曲線状繊維配向最適化
瀧澤拓, 本田真也, 片桐一彰, 佐々木克彦, 武田量, 構造強度に関する講演会講演集, 63rd, 2021年

電着樹脂含浸法を適用したCFRPによるUAV用モーフィング翼構造の製作と変形試験
片桐一彰, PARK Tunsch, 山口真平, 本田真也, 佐々木克彦, 玉山雅人, 飛行機シンポジウム講演集(CD-ROM), 58th, 2020年

電着法を用いてセルロースナノファイバーのシートで強化したCFRPの特性とその製造方法
片桐一彰, 山口真平, 永廣卓哉, 川北園美, 園村浩介, 尾崎友厚, 舘秀樹, 吉岡弥生, 武村守, 南沙也加, 本田真也, 佐々木克彦, 構造強度に関する講演会講演集, 60th, 2018年

セルロースナノファイバーを表面に分散させたCFRPのI型断面梁の強度特性
片桐一彰, 山口真平, 永廣卓哉, 園村浩介, 尾崎友厚, 川北園美, 武村守, 吉岡弥生, 本田真也, 佐々木克彦, 南沙也加, 金大貴, 日本複合材料合同会議(Web), 9th, 2018年

電着法で作製したCFRPコルゲーションの力学特性
片桐一彰, 山口真平, 永廣卓哉, 川北園美, 武村守, 吉岡弥生, 佐々木克彦, 本田真也, 南沙也加, LIGINE Florian, 飛行機シンポジウム講演集(CD-ROM), 56th, 2018年

電着を用いた樹脂含浸法を適用したCFRPの強度特性
片桐一彰, 佐々木克彦, 本田真也, 冨沢祐介, 中島晶, 南沙也加, 山口真平, 尾崎友厚, 園村浩介, 垣辻篤, 構造強度に関する講演会講演集, 59th, 2017年

電着による樹脂含浸を用いたCFRPへの蓄熱性付与
片桐一彰, 山口真平, 永廣卓哉, 尾崎友厚, 園村浩介, 吉岡弥生, 垣辻篤, 後藤凌平, 戸谷剛, 南沙也加, 本田真也, 佐々木克彦, 宇宙科学技術連合講演会講演集(CD-ROM), 61st, 2017年

電着による樹脂含浸を用いたCFRPの成形と強度
片桐一彰, 山口真平, 永廣卓哉, 尾崎友厚, 園村浩介, 吉岡弥生, 垣辻篤, 南沙也加, 本田真也, 佐々木克彦, 飛行機シンポジウム講演集(CD-ROM), 55th, 2017年

G1000301 種々の形状と板厚を持つガラス板の自由振動
海藤 義彦, 本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "G1000301, 1"-"G1000301-3", 2015年09月13日
Although there have been considerable number of technical papers that deal with free vibration of flat plates made of metal and composite materials, the vibration behavior of thin and thick sheet glass plates has not been clarified enough, and there has not been reported to answer the question of whether the classical plate theory is applicable to sheet glass plates. In the present report, vibration analysis and modal analysis measurement are conducted to compare both sets of natural frequencies and mode shapes, and the applicability of the conventional vibration analysis method is confirmed., 一般社団法人日本機械学会, 日本語

J1010304 Ritz法を用いたBlended layerを有する積層板の振動最適化
西岡 文弥, 本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "J1010304, 1"-"J1010304-5", 2015年09月13日
An advantage of carbon fiber reinforced plastics (CFRP) is tailorable mechanical property by changing the lay-up designs since each layer has strong anisotropy. For more effective use of tailorable anisotropy of composites, an idea of using blended layers has recently been proposed. The blended layer has partly different fiber orientation angle in the same layer but straight fiber in each area, resulting in constant volume fraction of fibers. The present study proposes an analytical method for natural frequencies of the laminated plate with blended layers by using the Ritz method based on the classical lamination plate theory. The Ritz method makes it reasonable to conduct parametric study and optimization involving vast number of repeated calculations. The validity of calculation is verified by the comparison of results from the present method and FEM. Then, areas and their fiber orientation angles of blended layers are optimized by using a genetic algorithm to maximize their fundamental frequencies. Numerical results revealed the existence of specific tendencies in the fiber orientations of blended layers on boundary conditions of plate, and the plate can achieve higher fundamental frequencies than those from typical laminates. From above, it is demonstrated that the present method provides good accuracy for the laminated composites with blended layers and the effectiveness of the blended layer design., 一般社団法人日本機械学会, 日本語

J2010205 Schaum's Outlinesシリーズをテキストとした工業力学教育
成田 吉弘, 原田 宏幸, 本田 真也, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "J2010205, 1"-"J2010205-5", 2015年09月13日
The present study introduces the education methodology on engineering mechanics by using Schaum's outline series as a textbook at Department of Mechanical and Intelligent System Engineering, Hokkaido University. Schaum's Outlines are a series of supplementary texts for college-level courses that are published by McGraw-Hill Education, and cover a wide range of academic subjects. Texts of Engineerng Mechanics "Statics" and "Dynamics" in the series are used in the class, and the reason why these supplementary texts were chosen is explained. Some students' responses are given and the advantage and disadvantage are discused from educational viewpoints., 一般社団法人日本機械学会, 日本語

J1010202 曲線状強化繊維を有する複合材の生産性と力学強度に関する多目的最適化
林 隼也, 本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "J1010202, 1"-"J1010202-5", 2015年09月13日
The present study proposes a multi-objective optimization method of productivity and dynamic strength for the fibrous composite plate with curvilinear fibers. The fibrous composites have some problems in the practical application to structures. The productivity decreases and fiber density becomes nonuniform with increase in the maximum curvature of curvilinear fibers. Therefore, the relationships between the productivity and curvature are formulated by the experimental results and a practical optimum curvilinear fiber shapes are searched. Curvilinear fiber shapes are defined by the coefficients of the cubic polynomial function. Because principal strains are important in design of aircraft main wings, principal strains of the plate are calculated by the finite element method with eight-node quadrilateral isoparametric element. An Optimized Multi-Objective Particle Swarm Optimization (OMOPSO) based on the non-dominated sorting and crowded distance metric sorting is employed as an optimizer with an inertia weight controlled by the auto-tuning method. The numerical results showed that the present optimization considering the relationships between the density and curvature resulted in the more practical solutions than the previous solutions., 一般社団法人日本機械学会, 日本語

J1010301 多目的タグチメソッドによる複合材アンテナシェル構造のロバスト設計
田中 聡一朗, 本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "J1010301, 1"-"J1010301-5", 2015年09月13日
CFRP (Carbon Fiber Reinforced Plastics) has been widely used to manufacture precise structures, such as antenna reflectors, due to their superior stiffness-to-weight and high dimensional stability as compared to the metallic materials. When one uses CFRP laminates to antenna reflectors for spacecraft, their vibration property becomes important. This is because antenna reflectors are often placed under sever vibration and acoustic noise environment due to the launch of spacecraft. In addition to this, harsh thermal variation becomes also serious problem. Antennas flying on the low Earth orbit are subjected to significant temperature variations, and the thermal deformation of antenna is inevitable. It is possible to suppress this vibration minimally if the laminates are stacked symmetrically. It is known, however, that CFRP laminates show unpredictable deformation caused by the ply angle misalignments during fabrication process. Since the ply angle misalignments are unavoidable so far, it is important to choose the lay-ups mitigating the effect of misalignment. The present paper proposes a multi-objective Taguchi method (MO-TM) to optimize the lay-ups of laminated antenna shell structure to maximize the fundamental frequency and minimize the thermal deformation in robust sense. Both vibration and thermal properties are evaluated by a finite element analysis, ANSYS. The validity of the present optimization is successfully confirmed by the comparison between obtained results from the MO-TM and those from the typical lay-ups., 一般社団法人日本機械学会, 日本語

J1010104 一般的な外圧条件を考慮した偏平FRPパネルの座屈最適化
丹保 建哉, 本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "J1010104, 1"-"J1010104-5", 2015年09月13日
Composite materials are well known to have superior specific stiffness and strength to conventional metal materials. Due to the excellent material properties, composites contribute to lighten the structures in various industrial fields. Moreover, it is known that engineers can intentionally change dynamic properties of composites by designing their lay-up configuration. Among the composites, shell structures are often found in the automotive and aerospace industries, but this type of structures has technical problem causing the buckling due to various external loads. Therefore, it is important to investigate buckling response of those structures on the safety design. In this study, the effect of generally shaped pressure on buckling eigenvalues of laminated composite shells is studied and those lay-up configurations are optimized to maximize non-dimensional buckling load or buckling parameters. First, stress distributions of shells under general external pressure are calculated by the Ritz method. Then, eigenvalues as critical buckling loads under in-plane stresses are derived by the Ritz method again where in-plane stress distributions determined in the first step are included as the potential energy. Finally, the layerwise optimization (LO) method is applied to optimize lay-ups and to maximize buckling load of laminated composites shells, and obtained optimum solutions are successfully result in higher buckling load compared with the typical lay-ups., 一般社団法人日本機械学会, 日本語

F102005 曲線状強化繊維を用いた翼構造要素の最適化の可能性
本田 真也, 成田 吉弘, 年次大会 : Mechanical Engineering Congress, Japan, 2015, "F102005, 1"-"F102005-3", 2015年09月13日
A formulation method of arbitrary shaped curvilinear fibers for laminated fibrous composites is proposed and applied to the multi-objective optimization problem. Two conflicting objectives employed here are the maximum principal strain around circular hole as a mechanical property and throughput of productivity relating to fiber curvatures. As an optimizer, both improved non-dominated sorting genetic algorithm (NSGA2) and multi-objective particle swarm optimization (MOPSO) are used. Obtained solutions from the MOPSO are distributed in the wide range of objective function space compared with the NSGA2, and the solutions with curvilinear fibers indicate lower maximum strains than the solution with straight fibers. This reveals the possibility of composites with curvilinear fibers as an effective component of wing structure., 一般社団法人日本機械学会, 日本語

111 空力弾性特性を考慮した複合材積層板の重量最小化
横山 学, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2015, "111, 1"-"111-7", 2015年08月25日
The present study minimizes weight of wings fabricated by laminated composite (CFRP) under aeroelastic constraint. The wing is simply approximated by a cantilever rectangular plate. The finite element analysis is used to calculate aeroelastic characteristics, flutter speed, of wing model. Weight of wings depends on the number of layers, and the distributed genetic algorithm (DGA), which has an advantage to deal with laminated plates with different numbers of, layers is employed as an optimizer. In the optimization, fiber orientation angles of laminated composites are assigned to design variables. The optimum wing model shows effective weight reduction with keeping the enough flutter speed. Results of structural analysis of optimized model clarify that stable torsional rigidity can acquire resistance to flutter., 一般社団法人日本機械学会, 日本語

107 改良型ジグザグ理論に基づく有限要素の提案とサンドイッチ複合材の振動最適化
熊谷 貴仁, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2015, "107, 1"-"107-11", 2015年08月25日
The present study proposes a new finite element based on the the refined zigzag theory (RZT) and optimizes lay-ups of the composite sandwich plate with soft core to maximize the fundamental frequencies. The plate consists of the CFRP skins and core layer of polyvinyl chloride. The element is an isoparametric 8-node quadratic rectangular element. From the numerical experiment, the present method gives more accurate results than the first-order share deformation theory (FSDT) and incurs lower computational effort than three dimensional theory (3DT). In the optimization problem, the Boolean particle swarm optimization (BPSO) is employed to maximize the fundamental frequencies of the sandwich. Optimized results are compared with other typical lay-ups and this reveals that the Boolean PSO is suitable to the optimization problem of composite sandwich., 一般社団法人日本機械学会, 日本語

136 自己組織化マップによる学習型適応振動制御
菅原 杏一, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2015, "136, 1"-"136-8", 2015年08月25日
This study applies self-organizing map (SOM) to control method for suppressing vibration of unknown object which varies dynamic characteristics. The SOM could convert the nonlinear statistical relationships between high-dimensional data into simple geometric relationships, usually a two dimensional grid of nodes. The presence method uses the SOM to estimate states of the controlled object and makes a statistical model about control input. Also the SOM is employed to establish evaluation criterion for rapid learning. The learnings are practiced when the effective control input is applied to the controlled object where the evaluation function of control system exceeds its evaluation criterion. The present method requires only information about input and output without any prior information, resulting in implementation of the vibration control without numerical models. This enables the present method to accept the change of dynamic characteristics.The present method is evaluated with the smart structure fabricated by Carbon Fiber Reinforced Plastic (CFRP) and piezoelectric actuators. Dynamic characteristics are changed by fastening vise and suspending weight. The result shows the presence method could suppress the vibration adaptively., 一般社団法人日本機械学会, 日本語

101 携帯電話機パネルのモデル化と振動特性
海藤 義彦, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2015, "101, 1"-"101-7", 2015年08月25日
Smartphones have been extensively used worldwide in recent years, and have functions to transfer information effectively by vibrating a panel. The panel is made of glass and fixed to the mobile phone's body by an adhesive tape. However, the vibration intensity is not strong enough and needs to be improved. Although a vast literatures dealing with vibration of plates exists, there has not been reported vibration of the glass panel fixed by the adhesive tape. This report presents simulation and experimental study on the forced vibration of glass panel used in the mobile phone. First, the authors derive an expression of the displacement of the plate by using Rayleigh-Ritz method. Here, the edges of the plate fixed by the adhesive tape are modeled by translational springs and rotational springs. Second, natural frequencies and mode shapes are calculated by using the derived equations for the plate with simply supported or elastic edges. Also, an experiment is conducted by using the modal analysis technique for glass test models. Finally, both results are compared to confirm the validity of the present calculation method., 一般社団法人日本機械学会, 日本語

122 外圧を受ける全周支持偏平シェルの級数解について(材料力学II)
丹保 建哉, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 11, 12, 2014年09月27日
一般社団法人日本機械学会, 日本語

424 Ritz法を用いたBlended layerを持つ積層板の振動解析(機械力学II)
西岡 文弥, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 109, 110, 2014年09月27日
一般社団法人日本機械学会, 日本語

425 Zigzag理論によるPCLDパッチ構造板の振動解析(機械力学II)
熊谷 貴仁, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 111, 112, 2014年09月27日
一般社団法人日本機械学会, 日本語

423 自己組織化マップを用いた振動制御における評価関数の影響(機械力学II)
木田 直宏, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 107, 108, 2014年09月27日
一般社団法人日本機械学会, 日本語

514 タグチメソッドの積層構成最適化への適用 : 積層パラメータの導入(生産加工・工作機械,計算力学,機素潤滑設計)
田中 聡一朗, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 129, 130, 2014年09月27日
一般社団法人日本機械学会, 日本語

513 メタヒューリスティック解法におけるAuto-tuning法の比較(生産加工・工作機械,計算力学,機素潤滑設計)
林 隼也, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 127, 128, 2014年09月27日
一般社団法人日本機械学会, 日本語

412 部分的最外層付加によるCFRPシャフトへの影響(機械力学I)
武野 和馬, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 97, 98, 2014年09月27日
一般社団法人日本機械学会, 日本語

411 剛体棒を持つ平板の動特性を用いた材料定数と弾性境界条件の同定(機械力学I)
船水 孝洋, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2014, 53, 95, 96, 2014年09月27日
一般社団法人日本機械学会, 日本語

327 一般的な外圧荷重と境界条件を考慮した偏平FRPパネルの座屈解析(領域1 解析・設計の高度化と新展開)
丹保 建哉, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2014, "327, 1"-"327-10", 2014年08月25日
Composite materials are known to have superior specific stiffness and strength to conventional metal materials. Due to the excellent material properties, composites contribute to lighten the structures in various industrial fields. Shell structures are often found in the automotive and aerospace industries, but this type of structures has technical problem causing the buckling due to various loadings. In this report, the effect of general pressure is studied on buckling eigenvalues of laminated composite shells. First, the stress distribution of shells under general pressure is solved by the Ritz method. Secondly, buckling eigenvalues under in-plate stresses are calculated in the Ritz method by using in-plate stress distributions determined in the first problem. By comparing the present numerical results with FEM, both sets of results closely agree each other, particularly in terms of the stress distribution. Moreover, the buckling behavior of the composite shells is confirmed by changing the shape of shells, boundary conditions and laminated configurations., 一般社団法人日本機械学会, 日本語

339 積層構成最適化におけるGAとPSOのtuningと性能比較(領域1 解析・設計の高度化と新展開)
林 隼也, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2014, "339, 1"-"339-12", 2014年08月25日
Carbon Fiber Reinforced Plastics (CFRP) can be used to tailor their mechanical properties by changing their lay-up design. In solving the lay-up design problem, meta-heuristic methods, such as Genetic Algorithm (GA) and Particle Swarm Optimization (PSO), are quite often employed. There exist some parameters to be decided properly in the meta-heuristic methods, and the performance of the optimization methods depends on the parameters. It is therefore important to introduce the parameter values appropriately (i.e., parameter tuning) for improvement of optimization performance. Recently, auto-tuning approaches are reported where the parameters are automatically determined according to the search situations. In this study, GA and PSO are applied to the lay-up design problem and the effects of parameters are evaluated. Then auto-tuning approaches are applied and compared each other. Comparative results clarify some effects of using different parameters and characteristics of each method. Furthermore, these also show the effectiveness of auto-tuning approaches and the improvement of the performance of GA and PSO in lay-up design problem., 一般社団法人日本機械学会, 日本語

340 Taguchi methodによるアンテナシェル構造の積層と支持位置のロバスト設計(領域1 解析・設計の高度化と新展開)
田中 聡一朗, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2014, "340, 1"-"340-12", 2014年08月25日
This study applies Taguchi method to optimize the structure of composite materials. CFRP (Carbon Fiber Reinforced Plastics) have been widely used to manufacture the precise structure, such as antenna reflectors, due to their lightweight and high dimensional stability as compared to the metallic materials. When one uses CFRP laminates to antenna reflectors for space telescopes, thermal deformation is a serious problem. This deformation can be suppressed if the laminates are stacked symmetrically. It is known, however, that CFRP laminates show unpredictable deformation caused by the ply angle misalignments. Since the ply misalignment is unavoidable, it is important to choose the lay-ups that mitigate the misalignment effects. In this study, the lay-ups and supporting positions are optimized in robust sense by using Taguchi method. As a result, it was shown that the optimal lay-ups and supporting positions could more effectively suppress the deformation than the typical lay-ups., 一般社団法人日本機械学会, 日本語

338 Blended layerを持つ積層偏平シェルの振動と設計(領域1 解析・設計の高度化と新展開)
西岡 文弥, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2014, "338, 1"-"338-9", 2014年08月25日
Carbon Fiber Reinforced Plastics (CFRP) can be used to tailor their mechanical properties by changing their lay-up design. For more effective use of lay-up design, an idea of using blended layers has recently been proposed. Blended layer is a layer with different fiber orientation angles in the same layer. In previous studies, the analysis of laminated composite plates with blended layer was made, but the analysis of laminated shallow shells with blended layer has not been studied yet. The present study proposes an analysis for natural frequency of the shallow shell with blended layer by using the Ritz method based on Donnel-Mushtari theory. The validity of analysis is verified by the comparison of the present result with the finite element method (FEM). Numerical examples clarifies that there exist some tendencies between the shape of shallow shell and the blended layer parameters. It also shows different characteristics depending upon boundary conditions. From these results, it is demonstrated that the present method provides good accuracy solution and the future technical potentials for the use of the blended layers of laminated shallow shells., 一般社団法人日本機械学会, 日本語

3B31 Multi-objective optimization for vibration suppression of smart laminated composites(The 12th International Conference on Motion and Vibration Control)
HONDA Shinya, WATANABE Kazuki, NARITA Yoshihiro, KAJIWARA Itsuro, 「運動と振動の制御」シンポジウム講演論文集, 2014, 12, "3B31, 1"-"3B31-10", 2014年08月03日
The present paper proposes a multi-objective optimization technique for smart laminated composites to maximize two conflicting objectives. The first objective is the performance of active vibration control of smart composite with piezoelectric (PZT) actuators. The second is the fundamental frequency of smart structures related to the performance of passive vibration control. Both performances of active and passive vibration control are maximized simultaneously. The vibration suppression of smart structures strongly depends on both actuator placements and vibration mode shapes. It is possible to design vibration mode shapes for laminated fibrous composites since their anisotropy for whole thickness is tailorable by arranging fiber orientation angle in each layer. This allows the smart structure with laminated composite to archive higher performance of vibration suppression than those with isotropic materials. However, the optimized structure results in lower natural frequencies than composites with typical fiber orientation angles since an effective input of control force from actuators is realized for the structure with lower stiffness. This reveals that there is a trade-off relation for smart composite structures between the performance of active vibration suppression and natural frequencies. To disclose this relation, the present study applies the effective multi-objective optimization technique, the refined non-dominated genetic algorithm (NSGAII), and obtains Pareto optimal solutions. Calculated results are successfully validated by a comparison with those from the real-time control experiment where a laser excitation technique which is effective to small sized structures is used., 一般社団法人日本機械学会, 英語

3B11 Adaptive vibration control using self-organizing map(The 12th International Conference on Motion and Vibration Control)
KIDA Naohiro, HONDA Shinya, NARITA Yoshihiro, 「運動と振動の制御」シンポジウム講演論文集, 2014, 12, "3B11, 1"-"3B11-8", 2014年08月03日
An adaptive control method using a self-organizing map (SOM) which is a kind of neural networks is proposed to suppress vibration of a cantilever plate. The SOM learns characteristics of given data without supervising and categorizes high dimensional data into low dimensional maps with keeping complex relationships among data. The present method employs the SOM to estimate states of the controlled object and makes a lookup table of control input. Each node of the state estimation SOM consists of vectors including current and past controlled responses and control inputs. The SOM and corresponding lookup table learn and are updated only when the effective control input is applied to the controlled object where the evaluation function of control system is defined by differences between the desired and current state. The present method just requires information about the control response and input to build the statistical model on site, resulting in implementation of the vibration control without numerical models in advance for controlled object. Numerical and experimental results are given for the cantilever plate fabricated by an aluminum plate and a piezoelectric actuator, and the effectiveness of the present method is successfully confirmed from both results., 一般社団法人日本機械学会, 英語

405 スマート複合材シェルの形状最適化による振動制御性能の最大化(機械材料、機械力学)
李 磊, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2013, 52, 99, 100, 2013年09月28日
一般社団法人日本機械学会, 日本語

J-1-3-110 剛体の付加された複合材積層板の固有振動数最大化(J-1-3:板の振動,領域1:解析・設計の高度化と新展開,総合テーマ「海を越え,国を越え,世代を超えて!」)
船水 孝洋, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2013, "110, 1"-"110-7", 2013年08月25日
It is important for designers to consider the lay-up configuration of the composite laminated plate to fit into their technical purpose because their strength, stiffness and natural frequencies depend on the lay-up configuration. Vibration analysis and optimization of lay-up configuration of the composite laminated plate with rigid bodies are considered for the maximization of the fundamental frequency in this study. The Ritz method is employed to analyze the vibration of the plate and the accuracy of the present method is confirmed by comparing the analytical and experimental result. This study also employs the layerwise optimization (LO) method to optimize the lay-up configuration and the validity of the optimized results is demonstrated by comparing fundamental frequencies of plates with the optimum lay-up configuration and with several plates which have typical lay-up configurations. The Ritz method requires less calculation load as compared with the finite element analysis and has an advantage when the method is applied to the optimization problem with the large number of repeated calculations., 一般社団法人日本機械学会, 日本語

J-1-3-108 Zigzag理論を用いた拘束型制振板の振動解析(J-1-3:板の振動,領域1:解析・設計の高度化と新展開,総合テーマ「海を越え,国を越え,世代を超えて!」)
熊谷 貴仁, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2013, "108, 1"-"108-10", 2013年08月25日
The present study proposes an analysis for natural frequencies and modal damping ratios for the passive construed layer damping (PCLD) plates by using the Ritz method based on the zigzag theory. The PCLD plate is a sandwich structure which consists of the basement plate, the viscoelastic layer and the constraining plate. Due to the large difference of mechanical properties between the viscoelastic layer and other layers, it is difficult to predict the deformation behavior of PCLD plate by the thin plate theories. The refined zigzag theory (RZT) approximates deformation of each layer by linear functions respectively, and this makes it possible to calculate the deformation of PCLD plates accurately. Polynomial functions which satisfy arbitrary sets of boundary conditions with boundary indexes are applied to the RZT. Calculated results agree well with results from the experiment and three dimensional finite element analysis., 一般社団法人日本機械学会, 日本語

J-1-4-112 CFRPシャフトのねじり振動に関する特性評価(J-1-4:はり・ねじり/円筒タンク,領域1:解析・設計の高度化と新展開,総合テーマ「海を越え,国を越え,世代を超えて!」)
武野 和馬, 高橋 圭佑, 本田 真也, 中村 崇人, 若林 雅貴, 成田 吉弘, 機械力学・計測制御講演論文集, 2013, "112, 1"-"112-10", 2013年08月25日
This study performs evaluation on torsional vibration characteristics of Carbon Fiber Reinforced Plastic (CFRP) shafts by using an experimental modal analysis technique with strain gauges and accelerometers. These CFRP shafts are usually fabricated by three kinds of layers; straight layer (0°), hoop layer (90°), and bias layer (45°). Due to the existence of bias layers, the CFRP shaft invokes the torsional vibration by the excitation in the bending direction. It is important to reveal the dynamic behavior, including the torsional mode, for effective utilization of CFRP shafts. Natural frequencies of 18 types of CFRP shafts with various lay-up configurations are measured to investigate the effect of each layer on vibration characteristics, and the mode which is not detected by the accelerometer but is measured by the strain gage can be distinguished as the torsional mode. It is demonstrated from experimental results that each layer has respective roles on vibration performances of CFRP shafts., 一般社団法人日本機械学会, 日本語

B33 自己組織化マップを用いた適応振動制御(M-OS3-1 制御/センシング,M-OS3 スマート構造システム,「海を越え,国を越え,世代を超えて!」)
木田 直宏, 本田 真也, 成田 吉弘, 「運動と振動の制御」シンポジウム講演論文集, 2013, 13, "B33, 1"-"B33-9", 2013年08月25日
An adaptive control method is proposed to suppress vibration of smart structures by using a self-organizing map (SOM), one type of neural networks. The SOM learns characteristics of given data without supervising, and categorizes high dimensional data into low dimensional maps with keeping complex relationships among data. The present method employs the SOM to estimate states of the controlled object and makes a lookup table of control input. Each node of the state estimation SOM consists of vectors including controlled responses and control input. The SOM and lookup table learn and are updated only when the effective control input is applied to the controlled object where the evaluation function of control system is defined by difference between the desired state and current state. The present method just requires information about the control response and input, resulting in implementation of the vibration control without numerical models. Numerical and experimental results are given for the smart structure fabricated by an aluminum plate and piezoelectric actuators, and effectiveness of the present method is confirmed from both results., 一般社団法人日本機械学会, 日本語

CFRP管体の動特性に関する研究—Study on dynamic characteristics of CFRP pipe
本田 真也, 研究報告書 フジクラ財団 [編], 1, 12, 2013年
[東京] : フジクラ財団, 日本語

440 マイクロスマート複合材の統合最適化とレーザー加振技術による振動制御性能評価
渡邉 一希, 本田 真也, 成田 吉弘, 梶原 逸朗, Dynamics & Design Conference, 2012, "440, 1"-"440-10", 2012年09月18日
Smart micro composites are designed optimally for the vibration suppression. The present smart structures are composed of graphite/epoxy (CFRP) composites and PZT actuators. Performance of vibration control strongly depends on actuator placements and modal shapes of structure. It is possible to specify vibration mode shapes for laminated composites by varying stacking combinations of angles of reinforcing fibers. In this paper, vibration control performance is maximized by optimizing fiber orientation angle, PZT actuator placement, and weight parameters in the control system simultaneously. A simple genetic algorithm method with modal database is used as an optimizer. Based on the numerical results, the experimental verification is conducted with an innovative excitation method using a laser abrasion technique. Since the pulse laser is irradiated precisely at the same position with same power repeatedly, this method makes it possible to excite micro structures with high reproducibility. Calculated results show that the optimized smart micro composite has superior performance of vibration suppression to some representative ones, and experimental results validate the present multidisciplinary optimization technique., 一般社団法人日本機械学会, 日本語

804 双安定性を有する非対称積層複合材シェルの振動特性評価
高橋 圭佑, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2012, "804, 1"-"804-10", 2012年09月18日
Asymmetric laminates of fibrous composites have strong elastic and thermal anisotropic properties, resulting in the curved surfaces caused by residual thermal strain during curing process. Specific asymmetric laminates indicate bi-stable states in terms of surface shapes, and these bi-stable states enable large deformation with relatively small energy input. This becomes an advantage when the asymmetric laminate is applied to the aerospace structures such as a morphing airfoil. The present paper first reveals occurrence criteria of bi-stable states for asymmetric laminates. In-plane buckling strengths are employed as an index of occurrence and calculated for plates with different width-to-thickness ratio and lay-up configurations. Then, vibration properties of bi-stable composite shells are evaluated by using both numerical study with the Ritz method based on Donnel-Mushtari theory and the experimental modal analysis technique. The numerical and experimental results show that there are some relations between the buckling strength and the occurrence of bi-stable states within plates having specific lay-up configurations, and asymmetric laminates with bi-stable states indicate different vibration characteristics before and after snap-thorough deformation., 一般社団法人日本機械学会, 日本語

806 板厚最適配置による局所異方性を有する複合材積層板の固有振動数最大化
湯上 訓平, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2012, "806, 1"-"806-10", 2012年09月18日
The present study proposes an optimization method of laminated CFRP plates with variable thickness. The objective function is the fundamental frequency calculated by the originally developed finite element code with a 4-node rectangular (ACM) element, and design variable are placements of elements with reinforcement layer. A simple genetic algorithm method is employed with elitist tactics as an optimizer. The obtained plates with optimum placement of reinforcements and optimum fiber orientation angle result in the highest fundamental frequency among representative models. Then, based on the optimization results, the test specimens are fabricated by using hand lay-up and vacuum curing technique with pattern paper which keeps thicknesses difference clearly. Measured frequencies and modes shapes agree well with the calculated results and the fabricated optimum plate also indicates the higher fundamental frequency than other representative ones. Furthermore, the optimum variable thickness plate yields higher frequency compared with the homogenous thickness plate due to its small mass. This observation demonstrates an advantage of the variables thickness plate in terms of vibration characteristics., 一般社団法人日本機械学会, 日本語

807 集中質量を持つ積層長方形板のモード解析と振動最適化
成田 吉弘, 本田 真也, 蒙 喧, Kauppi Antti, Dynamics & Design Conference, 2012, "807, 1"-"807-9", 2012年09月18日
The modal analysis is applied both experimentally and numerically to study vibration characteristics of a symmetrically laminated rectangular plate with point masses attached on the surface. The problem is solved numerically by using the Ritz solution, which is derived theoretically from the functional with the kinetic energy of the added point masses, and the results are obtained to study the effect of the point masses on vibration behavior. Then, the experimental modal analysis is used to measure the natural frequencies and mode shapes. The two sets of results are compared and turned out in good agreement. Subsequently, the lay-up design problem is considered to maximize the fundamental frequencies by use of the layerwise optimization (LO) approach. The design variables are taken for a set of fiber orientation angles in the symmetric layers., 一般社団法人日本機械学会, 日本語

805 スプライン曲面を用いて表現される曲線状繊維複合材の振動最適化
津端 諒, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2012, "805, 1"-"805-8", 2012年09月18日
The present study aims to optimize vibration characteristics of the fibrous composite plate with curvilinear fibers. Curvilinear fiber shapes are defined by the projections of contour lines for the surface which is expressed by multi-spline function. The curved surface of spline interpolation is defined by 25 data points, and their heights (z coordinates) are used as the design variables. The plate is limited to symmetric and balanced layup. Fundamental frequencies of the plate are calculated by an originally developed finite element code with iso-parametric 8-node elements. The optimization is carried out by applying a simple genetic algorithm with the maximum curvature constraint employed as the practicality index in the manufacturing process. Five different sets of boundary conditions are used in numerical experiments. Optimization results show that the curvilinear fiber shapes result in different shapes and higher fundamental frequencies for all boundary conditions, as they are compared to previous results where cubic polynomials are used to define for fiber shapes., 一般社団法人日本機械学会, 日本語

518 非対称積層長方形板の振動特性(機械力学・計測制御III)
李 承哲, 湯上 訓平, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2011, 50, 185, 186, 2011年10月01日
一般社団法人日本機械学会, 日本語

515 楕円孔を持つ積層長方形板の振動最適化(機械力学・計測制御II)
富橋 和哉, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2011, 50, 179, 180, 2011年10月01日
一般社団法人日本機械学会, 日本語

517 翅脈構造を有するCF/Alハイブリッド複合材の振動特性評価(機械力学・計測制御III)
湯上 訓平, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2011, 50, 183, 184, 2011年10月01日
一般社団法人日本機械学会, 日本語

516 三次元局所異方性を有する複合材の基本振動数最大化(機械力学・計測制御II)
石橋 祐太, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2011, 50, 181, 182, 2011年10月01日
一般社団法人日本機械学会, 日本語

357 充填物を有するフレキシブルニ重配管の振動減衰性能評価
南 貴士, 本田 真也, 成田 吉弘, 佐藤 大裕, Dynamics & Design Conference, 2011, "357, 1"-"357-8", 2011年09月05日
It is well known in the fields of nuclear and chemical plants that various pipes conveying liquids and gasses should be safe and reliable against excitation by earthquakes. This study proposes an effective use of the flexible pipe system, consisting of a double-walled pipes and infilling materials, to increase the bending rigidities and robustness to excitation. In particular, the vibration properties of such double-walled flexible pipe are examined in terms of changes of infilling rates. Aluminum pipes and glass beads are employed in the experiment to assemble the flexible pipe, and the natural frequencies and damping ratios are measured by using an experimental modal analysis technique with an impulse hammer. The present double-walled pipe system with beads successfully results in higher damping ratios than the pipe without beads. To reveal further relationship between infilling rates and damping ratios, experiments for the single-walled pipe with different filling rates are also conducted. It becomes then clear that there is a moderate filling rate to improve the damping properties of the flexible pipe., 一般社団法人日本機械学会, 日本語

103 積層パラメータを用いたスマート複合材の統合最適設計(振動計測・制振性向上,OS-12 スマート構造システム,総合テーマ:「部門創設25周年、新たなる躍動」)
小坂 亙, 本田 真也, 成田 吉弘, 梶原 逸朗, 機械力学・計測制御講演論文集, 2011, 17, 17, 2011年09月04日
一般社団法人日本機械学会, 日本語

217 曲線状繊維によって強化された複合材の多目的最適化(同定・最適化,OS-14 動力学問題の最適設計・制御とその周辺技術と応用,総合テーマ:「部門創設25周年、新たなる躍動」)
五十嵐 輝樹, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2011, 39, 39, 2011年09月04日
一般社団法人日本機械学会, 日本語

351 遠心力を受ける複合材積層板の振動解析(複合材の振動解析と実験,OS-13 板・シェル構造の振動・座屈と設計,総合テーマ:「部門創設25周年、新たなる躍動」)
和田 将明, 本田 真也, 成田 吉弘, 機械力学・計測制御講演論文集, 2011, 61, 61, 2011年09月04日
一般社団法人日本機械学会, 日本語

347 繊維強化複合材により局所的に強化された板の振動数最大化(複合材の振動,OS-13 板・シェル構造の振動・座屈と設計,総合テーマ:「部門創設25周年、新たなる躍動」)
本田 真也, 小柴 嵩, 成田 吉弘, 機械力学・計測制御講演論文集, 2011, 60, 60, 2011年09月04日
一般社団法人日本機械学会, 日本語

B209 曲線状繊維強化複合材の振動・曲率に関する多目的最適設計(OS4 スマート構造システム2)
五十嵐 輝樹, 本田 真也, 成田 吉弘, 「運動と振動の制御」シンポジウム講演論文集, 2011, 12, 339, 342, 2011年06月28日
The present study proposes a multi-objective optimization method to maximize the fundamental frequencies and minimizing production cost for the fibrous composite plate with curvilinear fibers. The production cost is represented by the average curvature of the curvilinear fibers. Curvilinear fiber shapes are defined by the projections of contour lines for a cubic polynomial surface, and the coefficients of the polynomial are employed as design variables. A finite element code with isoparametric 8-node rectangular element based on the first order shear deformation theory is employed to exploit the frequencies of plates. An improved non-dominated sorting genetic algorithm (NSGA-II) based on the non-dominated sorting and crowded distance metric sorting is used as an optimizer with a mutation whose probability is controlled to maintain the variety of individuals and to keep searching ability strong. The numerical results showed that the present optimization method resulted in the widely distributed Pareto-optimum front ranging from parallel fibers to largely curved fibers., 一般社団法人日本機械学会, 日本語

(17)局所的な異方性を有する繊維強化複合材料の解析と最適設計の研究(研究奨励,日本機械学会賞〔2010年度(平成22年度)審査経過報告〕)
本田 真也, 日本機械学會誌, 114, 1110, 329, 329, 2011年05月
一般社団法人日本機械学会, 日本語

充填物を有するフレキシブル二重配管の振動減衰性能評価
南貴士, 本田真也, 成田吉弘, 佐藤太裕, Dyn Des Conf (CD-ROM), 2011, ROMBUNNO.357, 2011年
日本語

302 振動制御を目的とした複合材積層板のスマート化に関する最適設計
本田 真也, 成田 吉弘, 梶原 逸朗, 中村 哲司, 最適化シンポジウム講演論文集, 2010, 9, "302, 1"-"302-5", 2010年12月09日
The present smart composite structures are composed of PZT actuators and graphlte-epoxy composites to improve the performance of vibration suppression. The control performance of PZT actuators strongly depends on their placements and vibration characteristics of laminated composites are varied by their lay-up configurations. Thus, a multidisciplinary optimization method employing actuator placements, lay-ups of laminated composite plates and control systems as design variables is proposed here. First, a database containing the frequencies and modal matrixes is made to avoid the FEA repeatedly. Then, the H_2 norm of control response is minimized with respect to the above design variables with referring the database by a simple genetic algorithm with assuming that the state feedback is available. Finally, the output feedback system is reconstructed with the dynamic compensator based on the linear matrix inequality (LMI) approach. The effectiveness of the present optimization technique is confirmed by the experimental and numerical results., 一般社団法人日本機械学会, 日本語

105 マルチリンク系の数値シミュレーションと実験(機械力学・計測制御I)
北川 雄, 前田 秀旭, 成田 吉弘, 本田 真也, 北海道支部講演会講演概要集, 2010, 49, 9, 10, 2010年11月07日
一般社団法人日本機械学会, 日本語

103 剛体-弾性体リンク系・振動特性(機械力学・計測制御I)
前田 秀旭, 北川 雄, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 5, 6, 2010年11月07日
一般社団法人日本機械学会, 日本語

102 両極を拘束された積層球形シェルの振動解析(機械力学・計測制御I)
藤井 俊憲, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 3, 4, 2010年11月07日
一般社団法人日本機械学会, 日本語

207 VGCF/Al積層円板の振動特性(機械力学・計測制御III)
古家 直明, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 33, 34, 2010年11月07日
一般社団法人日本機械学会, 日本語

209 積層楕円板の振動特性最適化(機械力学・計測制御III)
李 承哲, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 37, 38, 2010年11月07日
一般社団法人日本機械学会, 日本語

108 遠心力を受ける回転長方形板・積層構成最適化(機械力学・計測制御II)
和田 将明, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 15, 16, 2010年11月07日
一般社団法人日本機械学会, 日本語

213 実用的な曲線繊維形状を有する正方形板の振動最適化(機械力学・計測制御IV)
湯上 訓平, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 45, 46, 2010年11月07日
一般社団法人日本機械学会, 日本語

109 局所強化によるCFRP/Alハイブリッド板の振動最適化(機械力学・計測制御II)
小柴 嵩, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 17, 18, 2010年11月07日
一般社団法人日本機械学会, 日本語

214 充填物を有する円筒系の振動特性(機械力学・計測制御IV)
南 貴士, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2010, 49, 47, 48, 2010年11月07日
一般社団法人日本機械学会, 日本語

3203 モノの感じ方における感性評価 : 立体物の構造と印象との関連を中心に(OS14-1 感性と設計I,OS14 感性と設計)
李 美龍, 本田 真也, 成田 吉弘, 設計工学・システム部門講演会講演論文集, 2010, 20, "3203, 1"-"3203-2", 2010年10月27日
It is different by an individual how to feel about objects, and it is a subjective characteristic by the Kansei of the individual. This study aimed to evaluate an impression of the three-dimensional objects using the Kansei evaluation, and to investigate an element of the 3D objects and the connection with the impression. As the results of experiment, the shapes which became the first impression correspond with the element of the 3D objects. Therefore we think that the elements and the impressions are related deeply. This study becomes the fundamental researches in the manufacturing such as mechanical engineering, Kansei engineering and the product design., 一般社団法人日本機械学会, 日本語

2401 感性評価における情報の数量化とユーザカテゴリ(OS24. 感性領域の計算力学の援用(1),オーガナイズドセッション講演)
李 美龍, 本田 真也, 成田 吉弘, 計算力学講演会講演論文集, 2010, 23, 485, 486, 2010年09月23日
一般社団法人日本機械学会, 日本語

1501 スマート複合材料の振動制御に関する統合最適化(OS15. 複合材料における計算力学(1),オーガナイズドセッション講演)
本田 真也, 成田 吉弘, 梶原 逸朗, 計算力学講演会講演論文集, 2010, 23, 580, 581, 2010年09月23日
一般社団法人日本機械学会, 日本語

134 繊維強化複合材シェルの曲面形状と積層構成の同時最適化(積層複合版・シェルの振動-1,OS-13 板・シェル構造の振動・座屈と設計,総合テーマ「伝統を,未来へ!」)
加藤 大翔, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2010, "134, 1"-"134-6", 2010年09月14日
Shapes and lay-up configurations of composite laminated shallow shells are optimized simultaneously to maximize the fundamental frequency by a simple genetic algorithm method with the elitist tactics. The shell shape is defined by a cubic polynomial and various shapes of shells with inconstant curvature radii can be expressed by varying the value of coefficient for each term. The coefficients and the lay-up configuration of the laminated shell are directly employed as design variables, and constraints are imposed on the coefficients and curvature radii to keep shells shallow. The frequencies are calculated by using the Ritz method due to its flexibleness for shell shapes. Results of the present analysis technique agreed well with experimental and finite element analysis results in terms of frequencies and mode shapes, obtained optimum solutions resulted in higher fundamental frequencies than the shells with general shapes and lay-up configurations., 一般社団法人日本機械学会, 日本語

133 曲線状強化繊維を有する複合材モデルの最適化と実験モード解析(積層複合版・シェルの振動-1,OS-13 板・シェル構造の振動・座屈と設計,総合テーマ「伝統を,未来へ!」)
本田 真也, 湯上 訓平, 成田 吉弘, Dynamics & Design Conference, 2010, "133, 1"-"133-5", 2010年09月14日
The vibration characteristics of the composite plate model with curvilinear fibers are investigated in this study. The curvilinear fiber is realized by the plastic deformation of steel wires and the present composite model is composed of the curved steel wires and epoxy resin. The natural frequency and mode shape are obtained by the experimental modal analysis method where the plate is excited by the impulse hammer and acceleration response is measured. The experimental results showed that the present model has the specific skewed mode shape and it agrees well with the finite element analysis result in terms of the frequency and mode shape. Then the curvilinear fiber shape is optimized for the maximum fundamental frequency by using the genetic algorithm method. The numerical results showed that the optimum curvilinear fiber results in the higher fundamental frequency than the plate with typical curvilinear fibers., 一般社団法人日本機械学会, 日本語

419 曲線状繊維によって強化された複合材積層板の応力集中最小化(材料力学III)
大渡 康介, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 143, 144, 2009年11月28日
一般社団法人日本機械学会, 日本語

101 ねじれ形状を持つパネルの振動に関する研究(機械力学・計測制御I)
青木 亮爾, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 1, 2, 2009年11月28日
一般社団法人日本機械学会, 日本語

105 熱効果を含んだVGCF/Al積層円板の力学解析(機械力学・計測制御II)
古家 直明, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 9, 10, 2009年11月28日
一般社団法人日本機械学会, 日本語

111 懸垂構造要素の動力学解析と実験 : その2.実験(機械力学・計測制御III)
前田 秀旭, 北川 雄, 成田 吉弘, 本田 真也, 北海道支部講演会講演概要集, 2009, 48, 21, 22, 2009年11月28日
一般社団法人日本機械学会, 日本語

102 積層ハイブリッド長方形板の振動特性(機械力学・計測制御I)
小柴 嵩, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 3, 4, 2009年11月28日
一般社団法人日本機械学会, 日本語

110 懸垂構造要素の動力学解析と実験 : その1.理論解析(機械力学・計測制御III)
北川 雄, 前田 秀旭, 成田 吉弘, 本田 真也, 北海道支部講演会講演概要集, 2009, 48, 19, 20, 2009年11月28日
一般社団法人日本機械学会, 日本語

107 種々の曲率を持つ偏平シェルの振動に関する実験的検証(機械力学・計測制御II)
加藤 大翔, 成田 大祐, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 13, 14, 2009年11月28日
一般社団法人日本機械学会, 日本語

106 積層平行四辺形板の振動に関する最適解と実験的検証(機械力学・計測制御II)
藤井 俊憲, 本田 真也, 成田 吉弘, 北海道支部講演会講演概要集, 2009, 48, 11, 12, 2009年11月28日
一般社団法人日本機械学会, 日本語

231 一次せん断変形理論による積層平行四辺形板の振動解析と最適化
藤井 俊憲, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2009, "231, 1"-"231-6", 2009年08月03日
The carbon fiber reinforced plastics (CFRP) is classified as high performance composite materials that are superior to conventional materials in the specific strength and stiffness ratios. They are applied to light-weight structures in aircraft and space industries. In such fields, wings are often approximated as a parallelogram plate, but the past studies were carried out by using the classical plate theory. This analysis is however based on the shear deformation plate theory (FSDT). A Ritz method is used to calculate natural frequencies of symmetrically laminated parallelogram plates, and the layerwise optimization method is used to optimize the best lay-up designs. It is shown that the LO method is applicable to the parallelogram plates successfully., 一般社団法人日本機械学会, 日本語

254 積層ハイブリッド長方形厚板の振動解析と最適化
小柴 嵩, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2009, "254, 1"-"254-6", 2009年08月03日
A method of analysis is presented for determining the free vibration frequencies of hybrid laminated plates, and the layerwisr optimization method is used to determine the optimum fiber orientation angles for the maximum fundamental frequency under general edge conditions. The hybrid plates made of aluminum core and CFRP skins are made for reducing the material costs. Based on the first-order shear deformation theory (FSDT) applicable to thick plates, the Ritz solution is used to derive a frequency equation, and these results give good agreement with those from finite element method. An extensive set of numerical results is given in tabular and graphical form, illustrating the maximum fundamental frequency with the optimum lay-ups of the laminated hybrid plates. Comparison of the results gives tendencies caused by boundary conditions and laminated composition., 一般社団法人日本機械学会, 日本語

OS0501 局所異方性を有する繊維強化複合材料の座屈解析(微視構造を有する材料の変形と破壊,オーガナイズドセッション)
本田 真也, 大西 良昌, 成田 吉弘, M&M材料力学カンファレンス, 2009, 357, 358, 2009年07月24日
一般社団法人日本機械学会, 日本語

208 繊維形状最適化による複合材積層板の固有振動数最大化
本田 真也, 成田 吉広, 佐々木 克彦, 最適化シンポジウム講演論文集, 2008, 8, 185, 190, 2008年11月26日
A new design method is proposed here to maximize the fundamental frequency of laminated composite plates reinforced by curvilinear fibers. Spline functions represent arbitrarily shaped fibers and Ritz solutions generate frequency equations. The optimum curvilinear shapes are searched for the maximum fundamental frequencies using genetic algorithms, and the increments of data points which define the spline shape are used as design variables under the limited range of undulation. Comparison of the present analysis method gives good agreement with the finite element method in terms of natural frequencies and vibration modes, and the optimized results show that the present plate with optimally shaped curvilinear fibers gives higher or equal fundamental frequencies than those of the conventional plate with optimally oriented parallel fibers., 一般社団法人日本機械学会, 日本語

169 積層板の振動特性最適化法について : 実験計画法と他手法の比較
上甲 康之, 趙 希禄, 本田 真也, 成田 吉弘, Dynamics & Design Conference, 2008, "169, 1"-"169-6", 2008年09月02日
It is desirable to optimize the fiber orientation angles to maximize the fundamental frequencies of the fiber reinforced plastic plates. The optimization is studied here by using the experimental design for nonlinear problems, and it turned out that significantly less number of calculations is necessary as compared to other methods, such as a layerwise optimization approach (LOA). The numerical examples show that assumption of appropriate level values is efficient to obtain the optimum frequency in the vibration problem., 一般社団法人日本機械学会, 日本語

406 短繊維分布による繊維強化複合材の局所異方性最適化(計算力学、設計工学、機械潤滑設計)
本田 真也, 成田 吉弘, 佐々木 克彦, 北海道支部講演会講演概要集, 2007, 46, 105, 106, 2007年09月29日
一般社団法人日本機械学会, 日本語

最適な短繊維分布による複合材積層板の固有振動数最大化
本田真也, 成田 吉弘, 日本機械学会D&D2007 CD-ROM論文集, 9, "203, 1"-"203-6", 2007年
A new design method of functional fiber reinforced plastics (FRP) materials which imitates the micro structure of bone or shell in the natural world is proposed in this work. The material has local anisotropy induced by optimally distributed short fibers. The present design method combines a genetic algorithm method (GA) with layerwise optimization concept. The first frequency of thin plates is chosen as an objective function to be maximized in the optimization and it is turned out that the present plates always give higher natural frequencies compared to conventional plates which are reinforced by parallel fibers. Moreover, it is also revealed that optimally distributed short fibers tend to be allocated with certain tendency., 一般社団法人日本機械学会, 日本語

224 積層パラメータを用いた積層板座屈に関する最小重量設計法
本田 真也, 成田 吉弘, 最適化シンポジウム講演論文集, 2006, 7, 275, 280, 2006年12月08日
A lamination parameter approach, recently proposed by the authors, is extended in this work to solve a minimum weight design problem for optimizing buckling behavior of laminated composite plates. The present approach basically consists of two parts: the first part is to optimize the lamination parameters by a gradient method, and the second part is to obtain the optimum lay-up (i.e., the fiber orientation angles) by minimizing the errors between the optimum parameters and the parameters for all possible discrete lay-up designs. In the extension of approach, the minimum number of layers with equal thickness is determined so that the plate has higher buckling loads than the specified values. Numerical examples demonstrate that the proposed approach is quite effective in determining the optimum lay-ups for the minimum weight design., 一般社団法人日本機械学会, 日本語

313 積層板の座屈に関する最小重量設計(材料力学(2))
本田 真也, 成田 吉弘, 佐々木 克彦, 北海道支部講演会講演概要集, 2006, 45, 105, 106, 2006年09月25日
一般社団法人日本機械学会, 日本語

726 積層パラメータを用いた複合材料板の振動と離散的最適化
成田 吉弘, 本田 真也, Dynamics & Design Conference, 2005, "726, 1"-"726-6", 2005年08月22日
The fiber reinforced plastics (FRP) have been utilized in applications of automobile and aircraft structures, since they have advantages of high specific strength and stiffness ratios. The FRP composites are typically fabricated by stacking orthotropic layers, each composed of reinforcing parallel fibers and matrix material. In this work, the optimum lamination parameters are determined by the mathematical programming, and the corresponding fiber orientation angles are derived by minimizing the error of the optimized parameters and possible sets of discrete fiber orientation angles. Numerical examples show various applications of optimization in vibration behaviors of laminated plates, including the maximum fundamental frequencies with corresponding optimum lay-ups (fiber orientation angles) and the maximum difference of the fundamental and second natural frequencies., 一般社団法人日本機械学会, 日本語

CFRP/CFRTPの界面制御、成形加工技術と部材応用
技術情報協会, 第5節 刺繍機と電着樹脂含浸法を用いた成形技術
技術情報協会, 2020年12月, 9784861048111, 586p, 日本語, ［分担執筆］

電着樹脂含浸法を用いて作製した炭素繊維複合材の振動特性
橋本 直暉, 本田 真也, 片桐 一彰, 佐々木 克彦, 武田 量, 山口 真平, 川北 園美
Dynamics & Design Conference, 2019年, 一般社団法人 日本機械学会, 日本語
2019年 - 2019年,

An autoclave molding with prepregs is the most general method of CFRP manufacturing. It is well known that this method is time and energy consuming and prevents the cost reduction of CFRPs. Therefore, aiming to improve CFRP productivity, some manufacturing methods without the autoclave have been proposed such as a vacuumed resin transfer molding（VaRTM）method. The authors have been also proposed a new CFRP manufacturing method that is an electro deposition resin molding（EDRM）method. The EDRM is an application of the electro deposition technology which has been used as a coating technology for automobiles, and it is suitable for mass productions. In our previous studies, static mechanical properties including stiffnesses and strength of CFRPs molded by the EDRM have been investigated, but their dynamic properties have not been done yet. Therefore, in this study, in order to evaluate the vibration characteristics of CFRPs produced by the EDRM, an experimental modal analysis and finite element analysis（FEA） were performed on CFRP specimens with straight and curved reinforcing fibers. The specimens were also manufactured by the VaRTM method and their vibration damping characteristics were compared. It was confirmed from numerical and experimental results that natural frequencies and eigenmode shapes agree well with high accuracy, and the FEA is useful for the specimen manufactured by the EDRM. It is also found that CFRPs produced by the EDRM has greater modal damping ratios than CFRPs by the VaRTM.

セルロースナノファイバーシートを適用したCFRPの強度特性
片桐 一彰, 山口 真平, 川北 園美, 奥村 俊彦, 本田 真也, 佐々木 克彦, 粂 和弘
M&M材料力学カンファレンス, 2019年, 一般社団法人 日本機械学会, 日本語
2019年 - 2019年,

Carbon fiber reinforced plastics (CFRPs) have the properties of high strength and lightweight, and it has been applied for aircrafts or automobiles. Recently, cellulose nanofibers (CNFs) have been found to be superior in strength, thus, researches are being conducted to enhance the strength of CFRP by applying CNF. However, since CNF is hydrophilic, a hydrophobic treatment is inevitable. Previously, authors have reported that the electrodeposition resin molding method to manufacture CFRPs using the electrodeposition solution (EDS) containing a polymer with epoxy group, and the strength enhancement by CNFs could be possible. In this study, to improve the strength of CFRP conventionally manufactured by prepregs, a method was developed to disperse CNFs between prepregs using EDS. Carrying out the three-point bending test, the effects of the dispersed CNF on the bending stiffness and strength were clarified. As a result, the bending stiffness per weight (specific bending stiffness) increased in proportion to the weight fraction of CNF, and was approximately 2.9 times that of the CFRP specimen without CNF when the CNF weight fraction was 17 %. In the same manner, the bending strength per weight (specific bending strength) was approximately 1.6 times that of the CFRP specimen without CNF when the CNF weight fraction was 22 %.

Multi-objective optimization of laminated composite fabricated by tailored fiber placement machine　　　　　　　　　　　　　　　
本田真也
17th US-Japan Conference on Composite Material (US-Japan 2016), 2016年08月01日, 英語, 口頭発表（招待・特別）
［招待講演］, ［国際会議］

小型スマート複合材の振動制御性能に関する統合最適化とレーザー加振技術による実験的検証　　　　　　　　　　　　　　　
渡邉 一希, 本田 真也, 成田 吉弘, 梶原 逸朗
日本機械学会，第10回最適化シンポジウム（OPTIS2012）, 2012年12月06日, 日本語, 口頭発表（一般）
［国内会議］

集中質量を持つ積層長方形板のモード解析と振動最適化　　　　　　　　　　　　　　　
成田 吉弘, 本田 真也, 蒙 喧, KauppiAntti, Oulu Uni
日本機械学会，Dynamics & Design Conference 2012, 2012年09月18日, 日本語, 口頭発表（一般）
［国内会議］

マイクロスマート複合材の統合最適化とレーザー加振技術による振動制御性能評価　　　　　　　　　　　　　　　
渡邉 一希, 本田 真也, 成田 吉弘, 梶原 逸朗
日本機械学会，Dynamics & Design Conference 2012, 2012年09月18日, 日本語, 口頭発表（一般）
［国内会議］

板厚最適配置による局所異方性を有する複合材積層板の固有振動数最大化　　　　　　　　　　　　　　　
湯上 訓平, 本田 真也, 成田 吉弘
日本機械学会，Dynamics & Design Conference 2012, 2012年09月18日, 日本語, 口頭発表（一般）
［国内会議］

357 充填物を有するフレキシブルニ重配管の振動減衰性能評価
南 貴士, 本田 真也, 成田 吉弘, 佐藤 大裕
Dynamics & Design Conference, 2011年09月05日, 一般社団法人日本機械学会, 日本語
2011年09月05日 - 2011年09月05日, It is well known in the fields of nuclear and chemical plants that various pipes conveying liquids and gasses should be safe and reliable against excitation by earthquakes. This study proposes an effective use of the flexible pipe system, consisting of a double-walled pipes and infilling materials, to increase the bending rigidities and robustness to excitation. In particular, the vibration properties of such double-walled flexible pipe are examined in terms of changes of infilling rates. Aluminum pipes and glass beads are employed in the experiment to assemble the flexible pipe, and the natural frequencies and damping ratios are measured by using an experimental modal analysis technique with an impulse hammer. The present double-walled pipe system with beads successfully results in higher damping ratios than the pipe without beads. To reveal further relationship between infilling rates and damping ratios, experiments for the single-walled pipe with different filling rates are also conducted. It becomes then clear that there is a moderate filling rate to improve the damping properties of the flexible pipe.

充填物を有するフレキシブル二重配管の振動減衰性能評価
南貴士, 本田真也, 成田吉弘, 佐藤太裕
Dyn Des Conf (CD-ROM), 2011年, 日本語
2011年 - 2011年

302 振動制御を目的とした複合材積層板のスマート化に関する最適設計
本田 真也, 成田 吉弘, 梶原 逸朗, 中村 哲司
最適化シンポジウム講演論文集, 2010年12月09日, 日本語
The present smart composite structures are composed of PZT actuators and graphlte-epoxy composites to improve the performance of vibration suppression. The control performance of PZT actuators strongly depends on their placements and vibration characteristics of laminated composites are varied by their lay-up configurations. Thus, a multidisciplinary optimization method employing actuator placements, lay-ups of laminated composite plates and control systems as design variables is proposed here. First, a database containing the frequencies and modal matrixes is made to avoid the FEA repeated...

214 充填物を有する円筒系の振動特性(機械力学・計測制御IV)
南 貴士, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

213 実用的な曲線繊維形状を有する正方形板の振動最適化(機械力学・計測制御IV)
湯上 訓平, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

209 積層楕円板の振動特性最適化(機械力学・計測制御III)
李 承哲, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

207 VGCF/Al積層円板の振動特性(機械力学・計測制御III)
古家 直明, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

109 局所強化によるCFRP/Alハイブリッド板の振動最適化(機械力学・計測制御II)
小柴 嵩, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

108 遠心力を受ける回転長方形板・積層構成最適化(機械力学・計測制御II)
和田 将明, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

105 マルチリンク系の数値シミュレーションと実験(機械力学・計測制御I)
北川 雄, 前田 秀旭, 成田 吉弘, 本田 真也
北海道支部講演会講演概要集, 2010年11月07日, 日本語

103 剛体-弾性体リンク系・振動特性(機械力学・計測制御I)
前田 秀旭, 北川 雄, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

102 両極を拘束された積層球形シェルの振動解析(機械力学・計測制御I)
藤井 俊憲, 本田 真也, 成田 吉弘
北海道支部講演会講演概要集, 2010年11月07日, 日本語

3203 モノの感じ方における感性評価 : 立体物の構造と印象との関連を中心に(OS14-1 感性と設計I,OS14 感性と設計)
李 美龍, 本田 真也, 成田 吉弘
設計工学・システム部門講演会講演論文集, 2010年10月27日, 日本語
It is different by an individual how to feel about objects, and it is a subjective characteristic by the Kansei of the individual. This study aimed to evaluate an impression of the three-dimensional objects using the Kansei evaluation, and to investigate an element of the 3D objects and the connection with the impression. As the results of experiment, the shapes which became the first impression correspond with the element of the 3D objects. Therefore we think that the elements and the impressions are related deeply. This study becomes the fundamental researches in the manufacturing such as...

振動工学　　　　　　　　　　　　　　　
北海道大学
2020年12月 - 現在

固体力学系演習I　　　　　　　　　　　　　　　
北海道大学 機械知能工学科
現在

システム最適設計論特論　　　　　　　　　　　　　　　
北海道大学 工学院
現在

機械力学　　　　　　　　　　　　　　　
北海道大学 機械知能工学科
現在

テクニカルイングリッシュ１　　　　　　　　　　　　　　　
北海道大学 機械知能工学科

機械加工学実習　　　　　　　　　　　　　　　
北海道大学 機械知能工学科

ラボラトリーセミナー　　　　　　　　　　　　　　　
北海道大学 機械知能工学科

物理学１　　　　　　　　　　　　　　　
北海道大学 教養科目

電着による樹脂含浸法を適用したCFRPの積層造形法の開発と耐衝撃性・吸熱性の付与
科学研究費助成事業
2024年04月01日 - 2028年03月31日
片桐 一彰, 戸谷 剛, 奥村 俊彦, 岸本 直子, 磯野 拓也, 本田 真也
日本学術振興会, 基盤研究(B), 広島大学, 24K00763

材料ロスを抑制する革新的な複合材成形システムの開発
科学研究費助成事業
2024年04月01日 - 2027年03月31日
本田 真也
日本学術振興会, 基盤研究(C), 北海道大学, 24K07369

革新的な樹脂含浸法による先端複合材料の作製と振動最適化
科学研究費助成事業
2020年04月01日 - 2024年03月31日
本田 真也, 片桐 一彰
昨年度までに複合材平板に対する曲線状繊維束の隙間（Gap）や重なり（Lap）を考慮した板厚の推定手法，振動減衰性能の推定方法の開発を行い，減衰性能を最大化する目的で最適化問題に取り組んだ．得られた最適設計案を基に供試体および他の繊維形状を有する供試体を作製し，実験モード解析により，その減衰性能を計測したところ，得られた最適設計案が最も高い減衰性能を示し，板厚推定手法を含めた最適化手法の妥当性が確認できた．
本年度は，これら一連の確定した手法を，一般的な機械構造で多く利用されている殻(シェル)構造へ拡張した．昨年度までの手法では曲面の等高線を水平面に射影することで，任意の曲線群を表現していた．本年度はその曲線群を有限要素法で利用される形状関数を用いた座標変換により要素ごとの直線繊維を，最適に設計したいシェル要素内に変換した．球，円筒，馬鞍殻状のシェル構造へ本手法を適用し，いずれの場合にも曲線繊維が有効であることを示した．
また，電着樹脂含浸法で作製した複合材の板厚方向の電気特性の計測を行った．繊維が電気化学的に被覆されている状態のCFRPでは，絶縁性が高いと期待していたが，実際に計測した結果，電着樹脂含浸法で作製した試験片においても他の手法で作製した試験片と同様の導電性が確認された．一方，天然由来の材料であるセルロースナノファイバーや紙などを層間に挿入することで，絶縁され，平板キャパシタとして利用できる可能性が示された．
日本学術振興会, 基盤研究(B), 北海道大学, 20H02094

電着樹脂含浸法を用いたCFRPのラティス構造の製造法とその応用基盤技術の開発
科学研究費助成事業
2020年04月01日 - 2023年03月31日
片桐 一彰, 戸谷 剛, 陶山 剛, 奥村 俊彦, 磯野 拓也, 本田 真也
下記の研究を推進した。
（A) 電着樹脂含浸法を用いたラティス構造の製造法を開発、部材曲線化の効果の実証：これまでに、独自の炭素繊維強化樹脂（Carbon Fiber Reinfroced Plastic, 以下、CFRP)の製造方法である、電着樹脂含浸法の開発を進めてきた。今年度、この方法を適用したCFRP製ラティス構造の製作方法を確立するため、いくつかのラティス構造の試作試験を行った。電着樹脂含浸法は、ラティス構造を構成する部材が曲線状であっても容易に製作できることが大きな特長である。そのため、曲線部材を使った変形性が最大限に活用され、将来、有用と想定されるラティス構造として、航空機の主翼の骨組構造に着目し、検討した。
（B) セルロースナノファイバーによるCFRPの衝撃強度の向上とラティス構造への適用：CFRPの衝撃強度を向上させるため、まずは、添加するセルロースナノファイバーの長さや直径を変化させて、炭素繊維間に侵入させる試験を開始した。従来から言われているが、セルロースナノファイバーの長さや直径は、セルロースナノファイバーの分散評価とも関連性が大きい。そのため、現用のレーザー回折式の粒度分布分析装置を用いてセルロースナノファイバーの直径、長さを評価し、衝撃強度の評価に向けた基礎データを取得した。
（C）蓄熱性の計測手法、評価手法についての検討：蓄熱性CFRPの蓄熱量を向上させるためには、蓄熱性のみならず、熱伝導性を向上させ、蓄熱性CFRPの面内において、極力の広い範囲で蓄熱させる必要がある。そのため、表面の熱分布を精密に確認でき、かつ、断熱性を十分に確保する方法について検討を行った。
日本学術振興会, 基盤研究(B), 地方独立行政法人大阪産業技術研究所, 20H02039

絞り加工により成型した局所異方性を有する熱可塑性複合材の最適設計に関する研究　　　　　　　　　　　　　　　
奨励研究助成（若手研究者枠）
2019年11月 - 2021年10月
公益財団法人 天田財団, 北海道大学, 研究代表者

自由繊維形状を有する新機能熱可塑性複合材の開発
科学研究費助成事業
2017年04月01日 - 2020年03月31日
本田 真也
昨年度までに，以下の技術を開発した．（1）ファイバー縫付機（TFP；Tailored Fiber Placement）により，炭素繊維束（CFトウ）を熱可塑性シート基材に直接縫い付け，加熱プレスにより基材部をCFトウ内に含浸することで，TFP技術を用いた強化熱可塑性積層複合材の簡易的な作製技術．（2）作製した熱可塑性複合材の熱間深絞り後の形状に有用に働くように，予め熱可塑性積層板にTFP装置により部分的に強化繊維を配置し，局所的に強化された三次元部材を成形する技術．


本年度は，まず，チャネル型のストリンガーを模したコの字断面を持つ熱可塑性炭素繊維複合材部材を深絞り成形により作製し，4点曲げ試験により荷重変位曲線を取得した．この結果，作製した部材の4点曲げ試験を有限要素法（FEM； Finite Element Method）を使用した数値解析により再現可能であることを確認した．そのため，数値解析を用いた効果的な三次元部材の設計方法の開発を目指し，効率的な部分強化形状を探索するために，位相設計が可能なトポロジー最適化を適用した．4点曲げ試験シミュレーションを行った有限要素モデルに最大体積を元の形状の20 %以上となるように制約条件を課したトポロジー最適化を行い，4点曲げを再現した境界条件に対し最適な形状を求めた．最適形状を元のモデルの背面に積層し，再度4点曲げ試験シミュレーションを行った結果，元の形状よりも大幅に剛性が向上することがわかった．また，一般的な強化形状を持つモデル比較したところ，最適化を行った形状の方が高い剛性を示し，本最適化手法の有用性を確認した．
日本学術振興会, 基盤研究(C), 北海道大学, 研究代表者, 競争的資金, 17K06219

形状双安定性を有する新機能複合材シェルの開発
科学研究費助成事業
2014年04月01日 - 2017年03月31日
本田 真也, 成田 吉弘
非対称積層された積層複合材は各層の強い異方性により熱硬化後に歪んだ（シェル）形状となる．なかでも特定の寸法および積層構成を有する積層材は二つの安定した形状を有する双安定複合材となる．本研究では双安定形状間の変形量と双安定性を示す臨界温度の二つの相反する目的関数に関して遺伝的アルゴリズムに基づく多目的最適化を行った．熱硬化後のシェル形状予測には，レイリー・リッツ法に基づく独自の数値計算手法を開発した．数値計算結果は実験結果とよく一致しており，多目的最適化結果は広範囲に渡った非劣解（パレート解）を算出することができた．
日本学術振興会, 基盤研究(B), 北海道大学, 26289052

大曲率３Ｄコンポジットの動的設計と航空・自動車構造への機能創出
科学研究費助成事業
2012年04月01日 - 2017年03月31日
成田 吉弘, 李 美龍, 本田 真也
地球全体のエネルギー消費の高まりに対して，石油資源の有限性は人類の大きな課題である。このため石油を燃料とする自動車，航空機の交通機械において，構造軽量化により省資源を実現することは急務である。本研究は，自動車と航空機になお一層の構造軽量化による燃費向上を導入するため，形状を大きく変化させる複合材料構造の力学問題の解決と最適構造設計の研究を主な目的とする。具体的には，大曲率構造に問題となる振動環境下での動特性，熱変形，座屈や強度などの工学的諸問題を研究して，必要な場所に曲線状繊維を的確に導入する三次元的な最適複合材料構造を提案する。
日本学術振興会, 基盤研究(A), 北海道大学, 競争的資金, 24246040

自己組織化マップによるインテリジェント学習制御手法の開発
科学研究費助成事業
2014年04月01日 - 2016年03月31日
本田 真也, 木田 直宏, 菅原 杏一
本研究課題ではニューラルネットワークの一種である自己組織化マップ(SOM; Self-organizing map)を用いて，未知なる制御対象や運用中の故障などにより構造物の状況が変化した際にも対応可能な学習型の振動制御手法を提案した．本手法ではSOMの学習効果により構造物への入出力信号に関する統計モデルを作成するとともに，構造物のある状態に対して適切な制御入力を同時に学習し出力することで振動制御を行う．数値実験や実時間制御実験により本手法の有用性が確認できた．
日本学術振興会, 挑戦的萌芽研究, 北海道大学, 26630075

CFRP管体の動特性に関する研究　　　　　　　　　　　　　　　
研究助成
2012年04月 - 2014年03月
本田真也
財団法人 フジクラ財団, 研究代表者, 競争的資金

広帯域安定駆動を目的としたマイクロ・スマート複合材の開発
科学研究費補助金，若手研究(B)
2012年04月 - 2014年03月
本田真也
近年の機械システムや家電製品の小型・高性能化に伴い，使用される小型精密デバイスの更なる高速化・高精度化が求められており，これらを達成するためには，小型デバイスの効果的な振動制御手法の開発が必要である．本研究課題では，先端複合材料である炭素繊維強化材料と圧電アクチュエータからなるスマート複合材に関して，統合的な振動制御性能の最大化を目的とした最適設計手法，効果的な数値計算モデル，実験計測による振動特性の詳細な評価技術開発を行った．
日本学術振興会, 若手研究(B), 北海道大学, 研究代表者, 競争的資金, 24760179

高度な金型設計技術とサーボプレスの動作制御技術を組み合わせた高精度プレス加工技術の開発　　　　　　　　　　　　　　　
重点研究
2011年04月 - 2013年03月
鶴谷 知洋
北海道立総合研究機構, 競争的資金

パルスレーザーを用いた非接触加振に基づく高周波振動計測/高感度異常検知技術の開発
科学研究費助成事業
2010年 - 2012年
梶原 逸朗, 成田 吉弘, 小林 幸徳, 原田 宏幸, 江丸 貴紀, 星野 洋平, 本田 真也
パルスレーザーを構造物に照射したときに発生するアブレーションを利用した振動計測システムを開発し,100kHzという高周波数帯域においてコヒーレンス特性に優れた周波数応答を高精度に測定できることを検証した.そして,開発した計測技術をボルト緩みなどの異常を検知するシステムへと拡張し,高周波数帯域における特性変動を抽出することにより,微小な損傷を高感度で検知できることを明らかにした.
日本学術振興会, 基盤研究(A), 北海道大学, 22246027

コンポジット圧電素子による局所異方性振動モード制御
科学研究費助成事業
2010年 - 2011年
本田 真也, 成田 吉弘, 梶原 逸朗
軽量・高剛性の先端複合材料である,炭素繊維強化積層複合材の新機能創出のため,曲線状繊維や部分強化などの従来とは異なる複合材構造を提案し,構造内部に局所的な異方性を実現した.本研究では,曲線形状や強化材配置を最適に設計することで,構造の振動モード形状を任意に制御した.また,以上の技術を応用することでMEMS機器などを想定したスマート複合材の振動制御最適化技術を開発した.これらにより振動モード形状を考慮した振動現象の効率的な利用,または効果的な抑制が可能である.
日本学術振興会, 若手研究(B), 北海道大学, 22760164

新機能複合材料の力学解析法と最適設計法の開発
科学研究費助成事業 特別研究員奨励費
2007年 - 2008年
本田 真也
新機能複合材料を開発するにあたって,これまでに短繊維を理想的に分布し,局所異方性を実現した材料の最適設計手法を提案した.これは遺伝的アルゴリズム(Genetic Algorithm;GA)と層別最適化(Layerwise Optimization;LO)法を組合せた手法であり,膨大な設計候補を有する多層最適化問題を単層の探索問題の繰り返しに帰着する手法である.一度に全層を探索するよりも探索時間は長くなるが,より正確に解の探索を行え,多層板に対しても精度の良い解が得られることが特長である.本手法により求めた短繊維を理想的に分布した板は,従来の板よりも高い固有振動数を与えた.また,短繊維はある程度傾向を持って配向することがわかったため,連続した曲線状の繊維によって強化し,局所異方性を実現した板も均質異方性板より優れた性能を有する可能性があることを確認できた.
短繊維を最適に分布する材料は実現不可能な理想的な材料であるが,曲線状繊維により複合材を強化することは可能である.そのため,曲線状の繊維形状を最適に設計する手法を提案した.曲線状の繊維形状はスプライン関数を用いて表現し,振動解析手法としてはリッツ法を用いた.リッツ法は有限要素法(FEM)に比べて板形状の自由度には劣るが,計算速度の面で有利である.最適化には汎用性が高い単純遺伝的アルゴリズムを用いた.繊維配向角度が連続に変化するという制約があるため,従来の平行繊維板からの基本振動数の改善量は,短繊維を理想的に分布した場合よりも劣るが,平行繊維によって強化された均質異方性板よりも高い固有振動数を与えることが確認できた.しかしながら,連続繊維の場合は,平行繊維が有利である条件が存在することもがわかった.
日本学術振興会, 特別研究員奨励費, 北海道大学, 07J00067

複合材の設計方法、及び複合材
特許権, 加茂 宗太, ▲高▼木 清嘉, 志谷 徹, 阿部 俊夫, 本田 真也, 三菱重工業株式会社
特願2017-154631, 2017年08月09日
特開2019-032768, 2019年02月28日
特許第6955930号, 2021年10月06日
202103013889781403

METHOD FOR DESIGNING COMPOSITE MATERIAL AND COMPOSITE MATERIAL　　　　　　　　　　　　　　　
特許権, Sota Kamo, Kiyoka Takagi, Tooru Shitani, Toshio Abe, Shinya Honda
US 2019/0047237 A1, 2019年02月14日
US 11065831 B2, 2021年07月20日

複合材の設計方法、及び複合材
特許権, 加茂 宗太, ▲高▼木 清嘉, 志谷 徹, 阿部 俊夫, 本田 真也, 三菱重工業株式会社
特願2017-154631, 2017年08月09日
特開2019-032768, 2019年02月28日
201903014923120851

複合材の設計方法、及び複合材　　　　　　　　　　　　　　　
特許権, 加茂 宗太, 高木 清嘉, 志谷 徹, 阿部 俊夫, 本田 真也, 三菱重工業株式会社
特願2017-154631, 2017年08月09日
特開2019-32768, 2019年02月28日