拡張8分木法を用いた要素分割手法

概要

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A mesh-generation technique which generates a three-dimensional computational mechanics model is hereby proposed for mechanical design work. The technique is based upon the extended oct-tree representation method for a geometric model, and utilizes attributes known as features of the design model to generate a well-graded mesh. The features describe the meaning of geometry and the intention of analysis. In mesh generation, the octant detects the features and the mesh density is controlled by handling the depth of the oct-tree, in order to generate a well-graded mesh for either FEM, BEM, or FDM. The technique realizes both shell- and solid-type mesh generations. The solid meshes are yielded by utilizing the shell-mesh-generation process to improve the robustness. The robust shell-mesh generation is realized by interpreting the features and relocating the nodes of the octants. The technique is also useful for an h-version of the remeshing process.
一般社団法人日本機械学会の論文
1991-10-25