副教授 硕士生导师
性别: 男
毕业院校: 吉林大学
学位: 博士
所在单位: 机械工程学院
学科: 车辆工程
办公地点: 大连理工大学综合2号实验楼318A房间
电子邮箱: jincn@dlut.edu.cn
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发表时间: 2010-01-01
发表刊物: 计算机辅助设计与图形学学报
所属单位: 运载工程与力学学部
期号: 8
页面范围: 1266-1271
ISSN号: 1003-9775
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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