摘要
用于交通事故再现的碰撞模型大多采用动量定理 ,引进碰撞中心等参数。本文对典型的碰撞模型中的碰撞前速度方向参数和碰撞中心位置参数进行敏感度分析 ,给出其数学表达式和适用范围。对常用典型碰撞模型的具体应用具有重要参考价值。
The Conservation of Momentum and Impact Center parameter are used in most impact models in traffic accident reconstruction. While by now few articles have discussed the parameter sensitivity on these models. As a result, many traffic accident analysts neglect the applicable range of many models and misuse them, thereby educing inaccurate outcomes with obvious error. Parameter sensitivity analysis of these models, based on numerical analysis method, is presented in this paper. The important parameters such as angle of pre?impact velocity and the position of impact center are discussed. Formulas and ranges of applicability are also put forward. It will give a useful guide to the usage of typical impact models.
出处
《公路交通科技》
CAS
CSCD
北大核心
2002年第4期130-133,共4页
Journal of Highway and Transportation Research and Development
关键词
碰撞模型
参数敏感度
碰撞中心
交通事故再现
Accident reconstruction
Impact model
Parameter sensitivity
mpact Center
