VLM-ST공정의 정밀도 향상을 위한 알고리즘 개발Development of Algorithms for Accuracy Improvement in Transfer-Type Variable Lamination Manufacturing Process using Expandable Polystrene Foam

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In the rigid-plastic finite element simulation of hot forging processes using hexahedral mesh, remeshing of a flash is important for design and control of the process to obtain desirable defect-free products. The mesh compression method is a remeshing technique which enables the construction of an effective hexahedral mesh in the flash. However, because the mesh is distorted during the compression procedure of the mesh compression method, when it is used in resuming the analysis, it causes discretization error and decreases the conversance rate. Therefore, mesh smoothing is necessary to improve the mesh quality. In this study, several geometric mesh smoothing techniques and optimization techniques are introduced and modified to improve mesh quality. Then, the most adaptive technique is recommended for the mesh compression method.
Publisher
한국CAD/CAM학회
Issue Date
2003-12
Language
Korean
Citation

한국CAD/CAM학회 논문집, v.8, no.4, pp.212 - 221

ISSN
1226-0606
URI
http://hdl.handle.net/10203/83902
Appears in Collection
ME-Journal Papers(저널논문)
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