A rapid unfolding method based on large elasto-plastic deformation and planar mesh parameterization

被引：0
|
作者：
Li B. [1 ,2 ]
Zhang X. [1 ,2 ]
Zhu X. [1 ,2 ]
Jin C. [1 ,2 ]
Zhou P. [3 ]
Hu P. [1 ,2 ]
机构：
[1] The State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology
[2] School of Automotive Engineering, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology
[3] College of Automotive Engineering, Jilin University
来源：
Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics | 2010年 / 22卷 / 08期
关键词：
Autobody panels; Elasto-plastic deformation; Mesh parameterization; One-step inverse forming; Triangular mesh;
D O I：
10.3724/SP.J.1089.2010.11002
中图分类号：
学科分类号：
摘要：
As a classic case of unfolding the complicated CAD models, this paper presents a rapid optimal algorithm using one-step inverse forming to simulate the process of stamping autobody panels on triangular meshes. Firstly an auxiliary mesh is produced after performing some pre-processing operations, such as hole-filling and local remeshing. An initial guess algorithm based on energy model is then applied to flatten the auxiliary mesh into a planar mesh accounting for shape distortion. The optimization process is conducted to refine the result further based on rapid large elasto-plastic deformation theory, which generates not only a good prediction of the blank shape for manufacturing but also a mesh parameterization with less area distortion and angular distortion. Numerical examples show the effectiveness of our new algorithm.
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收藏
页码：1266 / 1271
页数：5
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