基于轻量化与多目标稳健性的可导向防撞垫设计  

Design of Steerable Crash Pad Based on Lightweight&Multi-Objective Robustness

作　　者：朱准峰 陈鹏[2] 刘剑 崔燕 ZHU Zhun-feng;CHEN Peng;LIU Jian;CUI Yan(Guangdong Nanyue Transportation Investment&Construction Co.,Ltd.,Guangzhou 510623,China;Changsha University of Technology,Changsha 410004,China;Shenzhen Municipal Design&Research Institute Co.,Ltd.,Shenzhen 518029,China)

机构地区：[1]广东省南粤交通投资建设有限公司,广东广州510623 [2]长沙理工大学,湖南长沙410004 [3]深圳市市政设计研究院有限公司,广东深圳518029

出　　处：《中国市政工程》2024年第2期106-111,150,共7页China Municipal Engineering

基　　金：国家自然科学基金面上项目(52072048)。

摘　　要：为降低防撞垫的成本并提高系统的稳健性,使用拓扑优化得到防撞垫吸能单元在多工况耦合的最优传力路径,通过单因素分析得到对防撞垫性能影响最大的因素。随后,进行基于田口方法的稳健性设计,将多工况问题视为多目标优化问题,获得最优参数尺寸。最后,进行仿真验证并与优化前作比较:优化后满意度提升21%,长度比同类型TS级防撞垫减少1/5。研究为基于混合元胞自动机法的拓扑优化在防撞垫初始形状设计中提供严谨的理论依据,设计方法为处理防撞垫的多工况复杂问题折中简化起到指导作用。To reduce the cost of the crash pad and improve the robustness of the system,the topology optimization is used to obtain the optimal force transmission path of the energy absorption unit of the crash pad under multiple working conditions,and the factors that have the greatest impact on the performance of the crash pad are obtained through single factor analysis.Then,the robust design based on Taguchi Method is carried out,and the multi-condition problem is regarded as a multi-objective optimization problem to obtain the optimal parameter size.Finally,the simulation verification is carried out and compared with that before optimization:after optimization,the satisfaction is increased by 21%,and the length is reduced by 1/5 compared with the same type of TS grade crash pad.The research provides a rigorous theoretical basis for topology optimization based on hybrid cellular automata method in the initial shape design of the crash pad,and the design method plays a guiding role in dealing with the compromise and simplification of the complex problem of the crash pad under multiple working conditions.

关 键 词：可导向防撞垫 拓扑优化 多目标稳健性设计 贡献率 

分 类 号：U417.12[交通运输工程—道路与铁道工程]