蜂窝结构缓冲装置的优化设计

中国机械工程 ›› 2011, Vol. 22 ›› Issue (10): 1153-1158.

蜂窝结构缓冲装置的优化设计

尹汉锋1,2;文桂林1,2;马传帅1,2;韩汪利1,2

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

2.湖南大学特种装备先进设计技术与仿真教育部重点实验室,长沙,410082

出版日期:2011-05-25 发布日期:2011-05-31
基金资助:
教育部科技创新工程重大项目培育资金资助项目(708067)

Optimization Design of Cushion Instrument of Honeycomb Structure

Yin Hanfeng1，2;Wen Guilin1，2;Ma Chuanshuai1，2;Han Wangli1，2

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

2.the Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment,Ministry of Education,Hunan University,Changsha,410082

Online:2011-05-25 Published:2011-05-31

摘要/Abstract

摘要：

通过简化蜂窝结构轴向压缩的应力–应变曲线，得到了理想的蜂窝结构轴向压缩应力–应变曲线，在该理想曲线的基础上对蜂窝缓冲装置的吸能大小和缓冲力峰值进行了理论计算。为了设计出单位质量吸能量大且缓冲过载小的蜂窝缓冲装置，对蜂窝结构的胞元胞壁厚、胞壁长进行了多目标优化,根据优化结果计算出缓冲蜂窝的最小轴向长度。应用该方法对四支撑腿着陆器中的蜂窝缓冲装置进行了优化设计，并采用试验验证过的Adams多刚体力学模型对优化结果进行了仿真计算，仿真结果表明该优化设计方法能很好地指导着陆器缓冲装置的设计。该方法不仅可以减少试验次数和降低昂贵的试验成本，而且通过多目标优化设计还可以一次满足不同缓冲级别的过载要求。

关键词:

蜂窝结构, 缓冲装置, 快速非支配排序遗传算法, 优化设计

Abstract:

After simplifying the crushing strain-stress curve of honeycomb structure under axial loading,an ideal crushing strain-stress curve was obtained. Based on the ideal crushing strain-stress curve, the energy absorbed by the cushion instrument of honeycomb structure and the peak crushing force were calculated. In order to design a cushion instrument of honeycomb structure that has the biggest energy absorption capacity per unit mass and has the minimum cushion overload,a cell wall thickness and width of the honeycomb structure were optimized by using multi-objective optimization method. According to the optimization results, the minimum axial length of the honeycomb structure can be calculated. Then, the honeycomb cushion instrument installed in the four legged lander was optimized using this method. The optimization results were verified by employing the multi-body dynamics model established in Adams

software.The simulation results indicate that this optimization method can direct the design of the landing instrument very well. This method can reduce the times and the cost of

the tests,and meets the cushion demands of different overloads. 

中图分类号:

TB535.1

尹汉锋1, 2, 文桂林1, 2, 马传帅1, 2, 韩汪利1, 2.

蜂窝结构缓冲装置的优化设计

[J]. 中国机械工程, 2011, 22(10): 1153-1158.

YIN Han-Feng-1, 2, WEN Gui-Lin-1, 2, MA Chuan-Shuai-1, 2, HAN Hong-Li-1, 2.

Optimization Design of Cushion Instrument of Honeycomb Structure

[J]. China Mechanical Engineering, 2011, 22(10): 1153-1158.

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