構造変更時の動特性予測精度向上のための補正付き摂動法の提案(機械力学,計測,自動制御)

概要

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Because of the large scale model of the finite element method in these days, it is required to find the method, which can be applied to the optimal analysis, to minimize the time for estimate of dynamic characteristics when 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 improved, including the case of without the lower modes, by using the complimentary vector adjusted to the change of structure 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 when the structure is even much changed on a large scale model.
一般社団法人日本機械学会の論文
2006-08-25