3次元シェル構造物の有限要素自動生成

概要

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This paper describes the development of an automatic finite element mesh generation method using a shape recognition technique for surface models. The major advantage is that a surface model is divided into only quadrilateral meshes by a single data input. In this method, one or more numbers are input to determine the number of divisions of edges. An arbitary plane derived from a surface model is analyzed, and squares are put together to construct a similar model based on human thought processes, expressed by membership functions defined in fuzzy set theory. Quadrilateral meshes are then generated by mapping the squares into each plane. We develop a new method for assigning division numbers for all edges because there are some restrictions on the number of divisions. These restrictions result from the condition that a surface model should be divided into only quadrilateral meshes. The performance of the method is demonstrated through automatic mesh generation for some mechanical parts.
一般社団法人日本機械学会の論文
1993-09-25