摘要
为研究轿车碰撞初速度与电动自行车、骑车人抛距的关系,运用MADYMO软件,建立轿车、电动自行车-骑车人的多刚体碰撞模型。通过仿真结果与监控录像截图及数据的对比,其误差小于1%,验证了模型的准确性。并通过改变模型中轿车的碰撞初速度21次,对得到的数据结果进行数学拟合,得出轿车制动距离、电动自行车滑行距离、骑车人头部与地面第一次接触距离、骑车人最终落点距离等参数与轿车碰撞初速度之间的关系公式6个。这些公式为交通事故中轿车车速的鉴定,提供了一定的参考依据。
In order to obtain the relationship between velocity of vehicle and throw distances of E-bi-cycle and bicyclist, MADYMO （ a dynamic modelling software） was used to model vehicle and bicy-cle-bicyclist and to simulate a real vehicle-bicyclist crash.By comparing the results of simulation and monitoring photos and data, this simulation was validated with a deviation less 1%.In the sim-ulation, 21 variations of initial velocities of vehicle were used to fit into 6 formulae which describe the relationship between braking distance, sliding distance, first contact distance between head and ground, distance of ending and velocity of vehicle.These formulae provide a scientific basis in esti-mating speed of vehicle in a traffic collision.
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2014年第5期955-961,共7页
Journal of Guangxi University（Natural Science Edition）
基金
国家质量监督检验检疫总局项目(2010IK084)
吉林大学汽车动态模拟国家重点实验室项目(20091106)
关键词
仿真
电动自行车
轿车
抛距
拟合
simulation
electric bicycle
vehicle
throw distance
fitting
