基于正交实验和多项式回归分析方法的非典型接触状态车人碰撞事故参数分析  

Parameter Analysis of Vehicle-Pedestrian Accidents in Untypical Contact State Based on Orthogonal Tests and Polynomial Regression Analysis

作　　者：张东明 张晓云[1] 杨小波[1] 侯心一[2] ZHANG Dongming;ZHANG Xiaoyun;YANG Xiaubu;HOU Xinyi(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Traffic and Police Office of Shanghai,Shanghai 200070,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海市公安局交通警察总队,上海200070

出　　处：《上海交通大学学报》2019年第1期55-61,共7页Journal of Shanghai Jiaotong University

基　　金：上海市自然科学基金(13ZR1422300)资助项目

摘　　要：针对现有交通事故数值模拟研究中易被忽略的侧碰撞、斜碰撞等非典型接触交通事故类型,通过一起真实交通事故案例,采用正交实验法与多项式回归分析相结合的方法拟合了车人碰撞事故中的待优化参数与初始参数之间的函数关系式,并对车人碰撞事故中的初始参数进行优化.结果表明,正交实验法与多项式回归分析相结合的方法具有较高的模拟精度,能够快速准确地得到合理的初始参数.同时,行人伤害模拟结果与医学鉴定结果具有较高的一致性,从而验证了所用方法的可靠性与合理性.Aimed at traffic accidents in untypical contact state such as side impact accidents and oblique impact accidents,the relationship between optimized parameters and input parameters was fitted by the combination of orthogonal test and polynomial regression analysis based on a real-world accident,and the initial parameters in this accident was optimized.Simulation results show that this method has a high degree of accuracy in optimizing initial parameters.Meanwhile,the injury of pedestrian in numerical simulation agreed with the conclusions of medical report,which further verified the reliability and rationality of simulation.

关 键 词：车人碰撞事故 非典型接触状态 模拟 参数分析 

分 类 号：U491.31[交通运输工程—交通运输规划与管理]