波纹方管吸能盒的耐撞性分析与参数优化  

Crashworthiness analysis and parameters optimization of crush box with corrugated square tube

作　　者：石恒鹏 莫秋云[1] 庞毅 李志扬 姜玉秀 余健辉 SHI Hengpeng;MO Qiuyun;PANG Yi;LI Zhiyang;JIANG Yuxiu;YU Jianhui(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China;Guangxi Shufang Technology Co.,Ltd.,Liuzhou 545000,Guangxi,China;Universiti Putra Malaysia,Kuala Lumpur 43400,Malaysia)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004 [2]广西数仿科技有限公司,广西柳州545000 [3]马来西亚博特拉大学,马来西亚吉隆坡43400

出　　处：《农业装备与车辆工程》2024年第6期65-70,共6页Agricultural Equipment & Vehicle Engineering

摘　　要：为提升汽车吸能盒在轴向冲击下的耐撞性,首先在传统方管吸能盒中引入波纹结构设计了3种波纹方管吸能盒,以传统方管吸能盒与波纹方管吸能盒的耐撞性分析来获得结构参数对波纹方管吸能盒吸能性能的影响规律。然后选取全边波纹方管吸能盒的波纹幅值、数量、厚度和材料为设计变量,以最大化比吸能、最小化峰值压溃力为优化目标,进行多目标优化。结果表明,优化后的全边波纹方管吸能盒较传统方管吸能盒的比吸能上升168.1%,峰值压溃力下降85.5%,优化效果显著。In order to improve the crashworthiness of vehicle crush box under axial impact, three kinds of crush boxes with corrugated square tube were designed by introducing corrugated structure into crush box with traditional square tube. The crashworthiness of the crush box with traditional square tube and the crush boxes with corrugated square tube were analyzed to obtain the influence of structural parameters on the energy absorption performance of the crush boxes with corrugated square tube. Then, the ripple amplitude, quantity, thickness and material of the crush box with all corrugated square tube were selected as design variables, and multi-objective optimization was carried out to maximize the specific energy absorption and minimize the peak crushing force. The results showed that the specific energy of the optimized the crush box with all corrugated square tube was increased by 168.1% and the peak crushing force was reduced by 85.5% compared with the crush box with traditional square tube and the optimization effect was remarkable.

关 键 词：吸能盒 耐撞性 波纹 多目标优化 被动安全 

分 类 号：U463.83[机械工程—车辆工程]