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一种大变形多空间域连续体结构拓扑优化方法

郭连水 Punit Bandi John E. Renaud

郭连水, Punit Bandi, John E. Renaud等 . 一种大变形多空间域连续体结构拓扑优化方法[J]. 北京航空航天大学学报, 2009, 35(2): 227-230.
引用本文: 郭连水, Punit Bandi, John E. Renaud等 . 一种大变形多空间域连续体结构拓扑优化方法[J]. 北京航空航天大学学报, 2009, 35(2): 227-230.
Guo Lianshui, Punit B, iet al. Method of multi-domain topology optimization for continuum structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(2): 227-230. (in Chinese)
Citation: Guo Lianshui, Punit B, iet al. Method of multi-domain topology optimization for continuum structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(2): 227-230. (in Chinese)

一种大变形多空间域连续体结构拓扑优化方法

详细信息
    作者简介:

    郭连水(1967-),男,安徽贵池人,副教授,lsguo@buaa.edu.cn.

  • 中图分类号: TP 202+.7

Method of multi-domain topology optimization for continuum structures

  • 摘要: 针对大变形非线性结构拓扑优化问题,提出了基于混合细胞自动机(HCA, Hybrid Cellular Automata)多空间域连续体结构拓扑优化方法;采用密度法,建立了单元相对密度表示的材料弹-塑性模型;以单元相对密度和应变能作为细胞自动机(CA,Cellular Automata)的状态信息,利用CA局部控制规则,修改相对密度,迭代实现各设计空间域应变能均匀分布;设计了多空间域拓扑优化HCA算法,采取多个对象同时耦合优化迭代,各自收敛策略,解决了多空间域优化迭代算法收敛稳定性问题;最后,以汽车保险杆结构横梁和支撑等两个设计空间为例,施加大变形动态载荷作用,对提出的多空间结构优化算法进行了验证,优化后结构有效地降低了碰撞作用力峰值达54%,提高了结构安全性.

     

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出版历程
  • 收稿日期:  2008-07-20
  • 网络出版日期:  2009-02-28

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