2026-03-05T08:38:19Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00008083 2024-06-25T05:48:56Z 2438:4190:4191

衝撃吸収エネルギーおよびピーク荷重を考慮した柱状シェル構造材の多目的最適設計 Multi-objective design optimization considering the energy absorption and peak crushing load Yamazaki, Koetsu Kitayama, Satoshi Ushida, Takahiro 70110608 山崎, 光悦 90339698 北山, 哲士 牛田, 卓宏 This paper deals with a multi objective optimization problem of crushing energy absorption of basic box-type column structures. This paper has tried to show the influence of dimensions of polygon, thicknesses of outer wall and inside diaphragms to the absorbing behaviors and the crushing peak force by the CAE simulation using LS DYNA. Then, this design problem is formulated as a multi-objective design optimization problem considering the maximization of total absorbing energy by crushing of column, and the minimization of crushing force peak during energy absorption. The response surface approximation technique is adopted to get the Pareto optimum with small numbers of CAE simulation of crushing. The suggested formulation is applied to solve the box type shell structures with diaphragm and hexagonal type shell structures with diaphragm. Finally, it is found that the shell structures with diaphragm, which connects the center of cross section and midpoint of each edge of side wall, show better energy absorbing performance in comparison with the structures with diaphragm connecting the center of cross section and the apexes of side walls. 金沢大学理工研究域機械工学系 日本機械学会 = Japan Society of Mechanical Engineers/Nihon Kikai Gakkai 2009-04-01 2017-10-03 jpn journal article VoR https://doi.org/10.24517/00008070 http://hdl.handle.net/2297/19317 https://kanazawa-u.repo.nii.ac.jp/records/8083 10.24517/00008070 AN0018742X 0387-5008 日本機械学会論文集. A編 Transactions of the Japan Society of Mechanical Engineers. A 75 752 522 528 https://kanazawa-u.repo.nii.ac.jp/record/8083/files/TE-PR-YAMAZAKI-K-522.pdf application/pdf 677.1 kB 2017-10-03