摘要
人-车碰撞事故中通常包含不确定因素,根据这些取值不确定的参数估算车速,具有不准确性。提出一个基于汽车-行人第一落地点的碰撞车速计算模型,可应用于行人抛距不可靠的情况下。为了提高该模型碰撞车速计算的准确性,引入了再现车速不确定度理论的评定方法。结合一起轿车与行人的碰撞事故,计算出行人第一落地点车速模型的车速最优取值范围。通过PC-Crash、MADYMO模拟仿真验证及与抛距模型车速计算结果的对比,验证上述车速计算分析流程的可行性与合理性。
The impact velocity would be incorrect,if the parameters for calculate the vehicle speed were uncertain. The vehicle velocity model of ‘the first contact point with ground＇was established. The uncertainty evaluation was applied to get an accurate range of velocity. Also PC-crash and MADYMO was used as a simulation platform to improve the accuracy of accident reconstruction. Compare the results with ‘Throw Distance＇model,the rational of ‘first contact point with ground＇model was validated by a real car / pedestrian accident case. The result reflects that the model is feasible and effective.
出处
《科学技术与工程》
北大核心
2016年第11期99-103,共5页
Science Technology and Engineering
基金
教育部2011年博士点基金(20113227110014)
交通运输科技项目(2014Y17)
道路交通安全公安部重点实验室开放课题资助
