形状認識を用いた三次元自動要素分割システムの開発

概要

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This paper describes the development of a three-dimensional automatic FEM (Finite Element Method) mesh generation system using the shape recognition technique. In this system a solid model is analyzed, and cubes are put together to construct a similar model to it in human thinking way, which is expressed by membership functions defined in fuzzy set theory. Then, hexahedral meshes are generated by mapping cubes into the solid model. The major advantages are described as follows. (1) A solid model is divided into only hexahedral meshes by single input data, that is mesh size. (2) It takes only about five minutes to divide a solid model into thousands of hexahedral meshes using an engineering work station. Hence, the system can be applied for practical use. The performance of the system is demonstrated through automatic mesh generation for some mechanical parts.
社団法人日本機械学会の論文
1993-04-25