A shape data processing system for 3-dimensional finite element analysis using solid model.

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  • ソリッドモデルを用いた三次元有限要素解析システムの一構成
  • ソリッド モデル オ モチイタ 3ジゲン ユウゲン ヨウソ カイセキ システム

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Abstract

This paper is concerned with a shape data processing method for 3-dimensional structural analysis based on solid model. The objective of the paper is to propose a data model for FEM analysis and a program structure of the pre/post processing system using the model. The main features of the data model are ; (1) The object to be analyzed are represented as a set of solid models corresponding to each finit element and the conditions and/or the computed results are as their attribute ; (2) Total shape data can be preserved by a renaming procedure in splitting operation, and the cyclic sub-division operations for selective parts can be performed in the system. The proto-typed system connected with NASTRAN is organized using Euler operators in shape processing and is proved to be effective through case studies.

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