剛性方程式のパラメータ感度解析に基づく区間有限要素法 (<小特集>ハイパフォーマンスコンピューティング)

概要

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A method is proposed for estimating the interval of structural responses with respect to changes in structural parameters. The parameters are assumed to change within a closed region, and the first-order approximation is applied to the response change on the basis of finite element sensitivity analysis. The method is based on convex modeling of the parameter changes. The maxima and minima of the responses are located on the boundary of a convex hull by means of linear programming, since the first-order approximation forms a convex function of the parameters. The validity of the proposed method is demonstrated by a numerical example related to a planar portal frame subjected to static loads.
一般社団法人日本機械学会の論文
1996-11-25