拡張四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 two-dimensional computational mechanics model is suggested for mechanical design work. The technique is based upon the extended quadtree representation method for a geometric model, and utilizes design model attributes, known as features, to generate a well-graded mesh. The design model is described by three kinds of data, geometric data, structural data, and product data. The product data are defined by the feature data, which are categorized into four types: environmental data. material data, functional data, and figure data. Each feature datum has a degree of importance to the design model. Also the feature describes the meaning of geometry, the intention of analysis, and so on. In the mesh generation procedure, the quadrant detects the degree of importance and the mesh density is controlled by handling the depth of the quadtree, in order to generate a well-graded mesh for either FEM, BEM, or FDM. 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
1990-10-25