Simulative Research on the Influence of Vehicle Brake Deceleration on the Throw Distance Prolperty of Human-vehicle Accidents
Braking deceleration of passenger-car has great influence on the pedestrian motion process after collision of human-vehicle accident,but it is considered not enough in current accident reconstruction and vehicle-speed analysis.In order to improve the accuracy of accident reconstruction,a computer simulation model of pedestrian-vehicle accidents based on finite element (FE) method and human parameters of Chinese adult human body is established.In this article,based on the FE model,human-vehicle crash is simulated through involving the influence of braking deceleration of passenger-car.For the application of the vehicle-speed analysis,the motion performance of pedestrian after collision were studied and the correlation between the pedestrian throw distance and vehicle impact speed are investigated.The influence of braking deceleration in same impact speed is analyzed.Research results show that the vehicle brake deceleration has a certain influence on the throw distance of pedestrian and it should be taken into account on the accident reconstruction.We can conclude that pedestrian throw distance can be used to estimate the vehicle collision speed accurately when drivers take full braking measure during the crash.
human-vehicle accidents vehicle braking deceleration finite element simulation accident reconstruction vehicle speed analysis
Quan Yuan Rui Guo Yibing Li
State Key Laboratory of Automobile Safety and Energy, Tsinghua University, Beijing 100084, China
国际会议
香港
英文
752-756
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）