上海交通大学学报

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (05): 746-749.

• 机械仪表工程 • 上一篇    下一篇

柔性夹具定位元件布局的优化设计
 

马杰1,王煜2,朱向阳1   

  1. (1. 上海交通大学 机械与动力工程学院， 上海 200240；2. 香港中文大学 机械与自动化工程系， 香港)
  • 收稿日期:2011-06-01 出版日期:2012-05-28 发布日期:2012-05-28
  • 基金资助:

    国家重点基础研究发展规划（973）项目(2007CB7077031)

Optimal Locator Layout Design for Compliant Fixture System

 MA  Jie-1, WANG  Yu-2, ZHU  Xiang-Yang-1   

  1. (1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2. Department of Mechanical and Automation Engineering,
     Chinese University of Hong Kong, Hong Kong, China)
  • Received:2011-06-01 Online:2012-05-28 Published:2012-05-28

摘要： 针对离散点域中夹具定位元件布局的优化设计问题，提出了带惩罚因子的弹簧接触模型，并将所有接触点的弹簧密度作为设计变量，采用拓扑优化算法优化夹具与工件系统的变形，并给出了实现所提方法优化夹具定位元件布局的具体实例.结果表明，该算法对二维和三维柔性夹具系统定位元件的布局优化都非常有效.

关键词: 夹具, 离散点域, 有限元, 布局优化设计

Abstract: For the problem of optimal fixture layout design in discrete point set domain, this paper proposed a topology optimization method. A penalized spring contact model was presented. The spring densities of the candidate contact points were introduced as a set of design variables. The objective is to minimize the deformation of the workpiecefixture system. The implementation of the algorithm and numerical examples were also presented. The results show the effectiveness of the proposed method for both 2-D and 3-D cases.

Key words:  fixture, discrete point set, finite element, optimal layout design

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