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http://dx.doi.org/10.5391/JKIIS.2005.15.3.343

Automatic Mesh Generation System for a Novel FEM Modeling Based on Fuzzy Theory  

Lee Yang-Chang (경기대학교 대학원 기계공학과)
Lee Joon-Seong (경기대학교 기계시스템디자인공학부)
Choi Yoon-Jong (경기대학교 대학원 기계공학과)
Kim Nam-Yong (경기대학교 대학원 기계공학과)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.15, no.3, 2005 , pp. 343-348 More about this Journal
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 solid modelers is employed for three-dimensional solid 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 controlled 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 solid structures holds great benefits for analyses. Practical performances of the present system are demonstrated through several mesh generations for three-dimensional complex geometry.
Keywords
Finite Element Analysis; Solid Model; Fuzzy Theory; Bucket Method;
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