Proceedings of the Korean Institute of Intelligent Systems Conference (한국지능시스템학회:학술대회논문집)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Automatic Mesh Generation System for a Novel FEM Modeling Based on Fuzzy Theory

퍼지이론을 이용한 FEM 모델링을 위한 자동 요소분할 시스템

  • Lee Joon-Seong (Div. of Mechanical System Design Engineering, Kyonggi University) ;
  • Lee Yang-Chang (Div. of Mechanical System Design Engineering, Kyonggi University) ;
  • Choi Yoon-Jong (Div. of Mechanical System Design Engineering, Kyonggi University)
  • 이준성 (경기대학교 기계시스템디자인공학부) ;
  • 이양창 (경기대학교 기계시스템디자인공학부) ;
  • 최윤종 (경기대학교 기계시스템디자인공학부)
  • Published : 2005.04.01
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Abstract

This paper describes an automatic finite element (FE) mesh generation for three-dimensional structures consisting of free-form surfaces. This mesh generation process consists of three subprocesses: (a) definition of geometric model, i.e. analysis model, (b) generation of nodes, and (c) generation of elements. One of commercial sol id modelers is employed for three-dimensional sol id structures. Node is generated if its distance from existing node points is similar to the node spacing function at the point. The node spacing function is well control led by the fuzzy knowledge processing. The Delaunay method is introduced as a basic tool for element generation. Automatic generation of FE meshes for three-dimensional sol id structures holds great benefits for analyses. Practical performances of the present system are demonstrated through several mesh generations for three-dimensional complex geometry.

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