p法適応型境界要素解析システムの開発

概要

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A boundary element analysis system using p-version. which is an adaptive mesh refinement scheme. was developed. Generally, elements in the p-version finite element method (FEM) are formulated using the interpolate function based on the hierarchical polynomial and the amplitude of high order function is chosen as the unknown value. In this study, a high-order boundary element that possesses unknown displacements of the collocation point was developed. This element makes it possible to apply the p-version even to contact problems that there are various contact conditions within the element. An effective and efficient error evaluation method suited to the p-version based on stress mode amplitude, in which stress distribution is converted into stress mode amplitude using the hierarchical interpolate function, is proposed. The system was applied to both basic and practical examples and application to actual equipment demonstrated its usefulness.
一般社団法人日本機械学会の論文
1997-06-25