922 高効率補正付き摂動法を用いた音響最適設計(OS18.次世代CAD/CAM/CAE/CG/CSCW/CAT/C-Control (1),ポスターセッションP-2,オーガナイズドセッション)

概要

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In these days finite element method is often used to design and develop products effectively. Using it engineers can evaluate the impacts of design changes without any experiments, so the method which can analyze dynamic characteristics of the much changed structure rapidly is required. Yamazaki and Hagiwara developed the new perturbation method with complementary term for this purpose and showed the possibility to reduce the analysis time drastically, but this method causes the extreme slowing down and instability problems when the structure changed widely. Then, we proposed the new complementary vector compute method and the way to calcurate responses effectively to solve these problems, and evaluate the accuracy, calculation speed and stability of these methods. Here, we show the application for acoustic design optimization of these methods and evaluate the usefulness.
2008-11-01