マイクロコンピュータによる有限要素解析のための能率的な計算法 : 第6報,部分構造法とLDU分解省略計算法の結合と連続フレーム構造解析への応用

概要

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This paper presents an efficient calculation method composed of the two following methods : (1) the substructuring method and (2) the method eliminating the LDU decomposition process of the stiffness matrix of the substructures, in numerical solutions of the finite element method (FEM). The substructuring method contributes to the decrease of the input/output data and memory capacity to be used. The method eliminating the LDU process decreases both the CPU time and memory capacity in the numerical solution. This method composed of these methods is applicable to an elastic analysis of bent, curved and/or multi-branched beams, frame structures, etc. The FEM using this method decreases the CPU time and memory capacity in comparison with the conventional FEM using the LDU process. In addition, the use of the method makes the FEM algorithm simple, and gives more accurate results. Therefore, ther method is effective for microcomputer-aided FEM.
一般社団法人日本機械学会の論文
1988-08-25