Inverse Approach to Identification of Anisotropy Parameters Based on Flange Edge of Drawing Cup

China Mechanical Engineering ›› 2011, Vol. 22 ›› Issue (6): 732-735.

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Inverse Approach to Identification of Anisotropy Parameters Based on Flange Edge of Drawing Cup

Cui Fugang;Li Gangyao;Liu Dihui;Li Fangyi

State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hunan University,Changsha,410082

Online:2011-03-25 Published:2011-04-15
Supported by:

Supported by Program for Changjiang Scholars and Innovative Research Team in University（No. 53110505037);
International S&T Cooperation Key Program of Ministry of Science and Technology of China( No. 2008DFB50020)

基于冲杯边缘线的各向异性参数反求

崔付刚;李光耀;刘迪辉;李方义

湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082

基金资助:
教育部长江学者和创新团队发展计划资助项目(53110505037)；科技部国际科技合作重点项目计划资助项目(2008DFB50020)；汽车车身先进设计制造国家重点实验室自主研究课题(70870006)
Supported by Program for Changjiang Scholars and Innovative Research Team in University（No. 53110505037);
International S&T Cooperation Key Program of Ministry of Science and Technology of China( No. 2008DFB50020)

Abstract

Abstract:

Based on flange edge of drawing cup,an inverse approach to identify anisotropy parameters was presented.This inverse approach achieved the flange edge of drawing cup through drawing cup experiments and reverse engineering technology, and taking the coefficient of normal anisotropy as the inverse variables, the differences of flange edge between the simulation and experiment as the objective function,

numerical simulation and multi-island genetic algorithm were combined to identify the anisotropy parameters. An example was performed to demonstrate that this method can identify these parameters rapidly under simple experimental conditions. Using the parameters inversed by this method can improve the precision of sheet metal forming simulation.

Key words:

inverse approach, sheet metal, anisotropy parameter, multi-island genetic algorithm

摘要：

提出一种基于试验冲杯边缘线反求薄板金属各向异性参数的方法。首先通过冲杯试验及逆向技术获取冲杯试件边缘线;然后以各向异性参数为反求变量，以仿真冲杯边缘线与试验冲杯边缘线的逼近程度为目标函数，结合数值仿真和多岛遗传算法反求各向异性参数。算例表明，该方法能够在简单试验条件下快速地获得具有较高精度的材料各向异性参数，对提高冲压仿真的预测精度有一定借鉴意义。

关键词:

反求, 薄板金属, 各向异性参数, 多岛遗传算法

CLC Number:

O34
TG38

CUI Fu-Gang, LI Guang-Yao, LIU Di-Hui, LI Fang-Xi.

Inverse Approach to Identification of Anisotropy Parameters Based on Flange Edge of Drawing Cup

[J]. China Mechanical Engineering, 2011, 22(6): 732-735.

崔付刚, 李光耀, 刘迪辉, 李方义.

基于冲杯边缘线的各向异性参数反求

[J]. 中国机械工程, 2011, 22(6): 732-735.

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Inverse Approach to Identification of Anisotropy Parameters Based on Flange Edge of Drawing Cup

基于冲杯边缘线的各向异性参数反求

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