上海交通大学学报

上海交通大学学报（自然版）

• 自动化技术、计算机技术 • 上一篇    下一篇

基于误差修正的复杂翻边切边线优化设计

白燕超，陈劼实，陈军
  

  1. （上海交通大学，模具CAD国家工程研究中心， 上海 200030）
  • 收稿日期:2009-11-16 修回日期:1900-01-01 出版日期:2010-09-28 发布日期:2010-09-28

Optimum Design of Complex Flanging Trimming Line Based on Error Correction Method

BAI Yanchao,CHEN Jieshi,CHEN Jun
  

  1. (National Die and Mold CAD Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030, China)
  • Received:2009-11-16 Revised:1900-01-01 Online:2010-09-28 Published:2010-09-28

摘要： 对复杂翻边的切边线优化设计进行了研究，提出了一种基于误差修正的预测复杂翻边切边线的迭代方法，在LSDYNA有限元仿真的基础上，根据仿真轮廓与目标轮廓的形状误差来修正毛坯形状.结果表明，经1~2次迭代修正后得到了精确的切边线形状，在程序中实现了LSDYNA求解器的自动调用，提高了切边线的优化效率.同时，通过对某翻边件的仿真模拟及物理实验，验证了该迭代方法的有效性.

关键词: 翻边, 切边线, 误差修正, 迭代

Abstract: Optimum design of complex flanging trimming line was studied. An iterative method based on errorcorrection was proposed. Based on finite element method (FEM) simulation of LSDYNA, the blank was corrected according to the error values of simulation results and the target curve. After one or two iterations, an exact trimming line was obtained. The program could automatically call LSDYNA solver, which greatly increased the efficiency of the trimming line optimization. A flanging simulation study proved that the method was effective.

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