20516 大規模有限要素モデルを用いた高速・高精度な構造変更時の動的特性予測手法の開発(大規模数値解析(4),OS11 大規模数値解析)

概要

論文の詳細を見る
The model scale of the finite element method is so large in late years, it is required to find a method which can be applied to the optimal analysis to minimize the calculation time for dynamic characteristics in changing the structure. We develop here a new perturbation method with complimentary term which is effective to this purpose. Here we show by both numerical and theoretical analysis that the accuracy of the estimate is greatly improve even without the lower modes, by using the complementary vector adjusted to the structure change and input style, which is obtained by Ma-Hagiwara modal method. We can show the possibility by using the method proposed here to reduce the analysis time drastically even when the structure is largely changed in a big model.
一般社団法人日本機械学会の論文
2006-03-09