不同厚跨比铝蜂窝吸能特性数值分析及优化  

Numerical Analysis and Optimization of Aluminum Honeycomb withDifferent Thickness to Length Ratio

作　　者：刘勇鑫 秦睿贤 陈秉智 于喜年[1] LIU Yongxin;QIN Ruixian;CHENG Bingzhi;YU Xinian(School of Mechanical Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2020年第2期56-60,共5页Journal of Dalian Jiaotong University

基　　金：国家自然科学基金资助项目(60870009)。

摘　　要：建立同厚跨比的5种不同胞元尺寸的铝蜂窝吸能模型,对蜂窝结构进行异面压缩的数值仿真分析,得到不同胞元结构的能量吸收指标.对各胞元结构进行以吸能最大,峰值载荷最小的多目标优化求解并通过均衡函数得到多目标均衡最优解.结果表明,不同胞元最优厚跨比具有较好的一致性.Five honeycomb models with the same thickness to length ratio and different cell sizes are established.The numerical analysis of the honeycomb structure is carried out to obtain the energy absorption indices of different cell structures.The multi-objective optimization of the cell structure with maximum energy absorption and minimum peak load is carried out,and the optimal solution is obtained through the equilibrium function.The results show that the optimum thickness to length ratio of the different cells has good consistency,which has certain reference significance for optimized design of honeycomb structure with the same thickness to length ratio.

关 键 词：铝蜂窝 厚跨比 异面压缩 吸能特性 

分 类 号：TB34[一般工业技术—材料科学与工程]