汽车乘员约束系统仿真及其参数优化  

Simulation of Automobile Occupant Restraint System and Optimization of Its Parameters

作　　者：杨凯 吴胜军 胡秋雷 Yang Kai;Wu Shengjun;Hu Qiulei(School of Automotive Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2024年第2期12-16,共5页Journal of Hubei University Of Automotive Technology

基　　金：汽车动力传动与电子控制湖北省重点实验室开放基金项目(ZDK1202004)。

摘　　要：在汽车有限元模型基础上建立了乘员约束系统模型,进行了100%正面刚性壁碰撞仿真分析。结合碰撞分析中假人伤害值,采用灵敏度分析筛选出对约束系统影响较大的参数作为设计变量,构建了关于加权伤害指标的Kriging代理模型,运用多岛遗传算法进行参数优化。结果表明,加权伤害指标降低了38.92%,达到设计目标。A passenger restraint system model was built based on the finite element model of the car,and a 100%frontal rigid wall collision simulation analysis was conducted.Incorporating the dummy injury values from the collision analysis,sensitivity analysis was employed to identify parameters that have a significant impact on the constraint system as design variables.Subsequently,a Kriging surrogate model for weighted injury indicators was constructed,followed by parameter optimization using a multi-island genetic algorithm.The results show that the weighted injury index decreases by 38.92%,achieving the design goal.

关 键 词：约束系统 代理模型 乘员伤害 

分 类 号：U491.6[交通运输工程—交通运输规划与管理]