吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 1481-1487.doi: 10.13229/j.cnki.jdxbgxb201505016

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柔性三维拉弯成形工艺稳健设计

滕菲1, 2, 刘博3, 张万喜1, 2, 高嵩1, 2   

  1. 1.大连理工大学 汽车工程学院,辽宁 大连 116024;
    2.大连理工大学 工业装备结构分析国家重点实验室,辽宁 大连 116024;
    3. 长春富维江森自控汽车饰件系统有限公司,长春 130033
  • 收稿日期:2015-03-11 出版日期:2015-09-01 发布日期:2015-09-01
  • 通讯作者: 刘博(1986-),男,工程师.研究方向:汽车内饰.E-mail:stromliubo@126.com
  • 作者简介:滕菲(1985-）,女,博士研究生.研究方向:汽车材料.E-mail:tengfei325@126.com
  • 基金资助:
    国家工信部重点产业振兴和技术改造专项项目(吉工信投资[2011]350)

Robust optimization designing method for three-dimensional flexible stretch bending forming

TENG Fei1, 2, LIU Bo3, ZHANG Wan-xi1, 2, GAO Song1, 2   

  1. 1.School of Automotive Engineering, Dalian University of Technology, Dalian 116024,China;
    2.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;
    3.Changchun Fuway Johnson Controls Automotive Systems Co. Ltd., Changchun 130033, China
  • Received:2015-03-11 Online:2015-09-01 Published:2015-09-01

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摘要： 分析了型材柔性三维拉弯成形工艺的可控因素和不可控因素,提出了该工艺稳健分析优化设计方法。通过有限元模拟,对可控因素和不可控因素进行正交试验分析,找出了影响较大的因素。采用在减小回弹的基础上控制型材厚度变化率的综合质量损失为目标函数,用响应面模型对其进行函数拟合,然后利用遗传算法对目标函数进行稳健优化。试验验证结果表明:采用该方法进行稳健优化设计后,能够在满足约束条件的情况下有效减小综合质量损失。

关键词: 机械制造工艺与设备, 柔性三维拉弯, 回弹, 稳健优化

Abstract: The uncontrollable factors and controllable factors of the profile of three-dimensional flexible stretch bending forming are analyzed. Based on the analysis, a comprehensive quality evaluation method of three-dimensional stretch bending and a robust optimization method are proposed. The uncontrollable factors and controllable factors are analyzed based on orthogonal experiments by finite element simulations, and the factors greatly influencing the forming quality are identified. The comprehensive quality evaluation method is established using the loss of comprehensive quality as the optimization objective. The objective includes reducing the springback and controlling the change rate of profile thickness. The response surface model is adopted to carry out the fitting function. Genetic algorithm is applied for robust optimization, and the optimization results are validated. The results show that the robust optimization method can effectively reduce the comprehensive quality loss while the constraints are satisfied.

Key words: manufacturing processes and equipment, three-dimensional flexible stretch bending, springback, robust optimization

中图分类号: 

  • TG386
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