中国机械工程 ›› 2016, Vol. 27 ›› Issue (02): 278-283.

• 机械基础工程 • 上一篇    下一篇

侧面柱碰撞条件下轿车车门抗撞性优化设计

唐涛;张维刚;陈鼎;张文强   

  1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082
  • 出版日期:2016-01-25 发布日期:2016-12-15
  • 基金资助:
    国家自然科学基金资助项目(51275164)

Crashworthiness  Optimal Design  of  Automotive  Side  Door  under  Pole  Side  Impact

Tang Tao;Zhang  Weigang;Chen Ding;Zhang Wenqiang   

  1. State  Key  Laboratory  of  Advanced  Design  and Manufacturer for Vehicle  Body,Hunan  University,Changsha,410082
  • Online:2016-01-25 Published:2016-12-15
  • Supported by:

摘要:

为提高车门的抗柱撞性能,将基于SIMP理论的拓扑优化方法引入车门防撞梁设计,得到最佳的防撞梁材料分布;选择合适的截面构造防撞梁,得到一种Y形防撞梁结构;结合响应面法和NSGA-Ⅱ多目标优化算法对防撞梁进行多目标优化。相比于初始设计,优化后防撞梁在保证车门刚度满足法规要求的前提下,刚性柱的撞击侵入量减少22.5%,车门抗柱撞性能明显提高。

关键词: 侧面柱碰撞, 车门防撞梁, 拓扑优化, 多目标优化

Abstract:

In order to improve the crashworthiness of  pole to vehicle side impact,topology optimization method was introduced to design the side door beam based on SIMP theory,and  the optimized material distribution was obtained.Then,appropriate section was chosen to construct  the door beam and a Y-shape beam structure was formed.Multi-objective optimization was conducted by using response surface  method combined with NSGA-Ⅱ algorithm.Compared to initial design,the crashworthiness of optimized door beam was  improved greatly with the pole impact intrusion reduced by 22.5%,while the door stiffness still meets the regulation requirements.

Key words: pole , to , vehicle side impact;side , door , beam, topology optimization;multi-objective  , optimization

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