期刊论文

TOPOLOGICAL OPTIMIZATION DESIGN OF TB LEVEL ENERGY ABSORBER BOX OF GUIDING CRASH CUSHION

中文

机械强度

1001-9669

2020

42

04

856-862

10.16579/j.issn.1001.9669.2020.04.015

国家自然科学基金重点项目（51675059）资助~~；

本校为第一机构

为了可导向防撞垫轻量化设计,基于混合元胞自动机的耐撞性拓扑优化方法,对可导向防撞垫吸能盒进行多工况拓扑优化分析,提取了吸能盒拓扑构型。并且利用正交试验设计方法,以车辆多工况碰撞中最大的加速度为考核指标,对矩型截面吸能盒的截面参数进行了优化设计,确定了矩型截面吸能盒的最优参数组合。最后,对正交试验优化前后的防撞垫进行多工况有限元仿真分析,并且将正碰工况下优化后防撞垫与现存防撞垫加速度对比,结果表明通过优化后获得的吸能盒较优化前缓冲性能更优,能更好的保护乘员安全。

In order to reduce the weight of the steerable crash cushion,based on the collision resistance topology optimization method of hybrid cellular automata,the multi-condition topology optimization analysis of the energy absorption box of the steerable crash cushion was carried out,and the topology configuration of the energy absorption box was extracted. Moreover, the cross-sectional parameters of the rectangular cross-section energy absorption box are optimized by using orthogonal test design method and taking the maximum acceleration in the multi-condition collision of the vehicle as an evaluat...