パソコンによる自動要素分割の前処理システムの開発

概要

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An automatic mesh generation system has been developed for easy implementation of preparing large amounts of input data with respect to the formation or generation of the nodes of the finite elements which are needed for a finite element analysis. This system is capable of generating mesh of triangular elements in the arbitrarily shaped and multiply connected planar domain. By using minimum necessary information and random numbers for adapting the complex boundary shape of a given domain, large amounts of input data for a finite element analysis can be prepared automatically. Consideration is taken to avoid the formation of elements having acute angled corners and to control the size or distribution density of finite elements in order to avoid the loss of numerical accuracy of the result of the analysis. Moreover, this paper presents Pre-Mesh Generator using a personal computer and an image scanner which produces input data for above-mentioned Automatic Mesh Generator by interactive mode. It is confirmed that Mesh Generator is a useful pre-processing system preparing input data for a finite element analysis.
社団法人日本船舶海洋工学会の論文
1994-09-04