Zou Donghua, Zhang Xian, Li Zhengdong, Sun Jie, Zhang Jianhua, Huang Ping, Ma Kaijun, Chen Yijiu
Shanghai Key Laboratory of Forensic Medicine, Academy of Forensic Science, Ministry of Justice, PR China, 1347# West Guangfu Road, Shanghai, China.
Kunshan Hospital of Integrated Traditional Chinese and Western Medicine, Kunshan, Jiangsu Province, China, 23# Jingcheng Road, Huaqiao, Kunshan, Jiangsu Province, China.
J Forensic Leg Med. 2019 Jul;65:15-21. doi: 10.1016/j.jflm.2019.04.006. Epub 2019 Apr 16.
In dealing with a scooter-related traffic accident with rider death, it is necessary to identify the driver responsible for the accident. This study aimed to reconstruct the kinematics of a scooter-microvan accident involving three riders and explored the differences in injury risks and characteristics of the scooter driver and passengers. We reconstructed a real accident by using MADYMO multi-body simulation software. Moreover, we designed two-variable simulation experiments to analyze how the velocity and impact angle of the microvan are related to the injuries of the three riders. When the microvan speed is set at 18 km/h and that of the scooter is set at 28.8 km/h, the simulated kinematics correlates well with real accident data, and the impact positions and injury parameters correlate well with the actual injuries. When the impact angle is smaller than 30° and the microvan impact velocity is lower than 40 km/h, the head injury of the driver is more life-threatening than the corresponding injuries of the rear passengers. When the impact angle is 15° and the microvan impact velocity is in the range of 0-20 km/h, the femur fracture risk is higher for the driver than for passengers. As the impact angle increases to 45°, passengers have a higher risk of femur fracture than the driver in the velocity range of 0-10 km/h. This impact velocity range becomes 0-30 km/h at an impact angle of 60° and then 40-70 km/h at an impact angle of 90°. Our study shows that the multibody method can reconstruct accidents and predict the different injury features and risks between the driver and passengers, which is useful in identifying the driver.
在处理涉及骑手死亡的踏板车交通事故时，有必要确定事故责任方。本研究旨在重建一起涉及三名骑手的踏板车与微型货车事故的运动学，并探讨踏板车驾驶员和乘客受伤风险及特征的差异。我们使用MADYMO多体仿真软件重建了一起真实事故。此外，我们设计了双变量仿真实验，以分析微型货车的速度和碰撞角度与三名骑手受伤情况之间的关系。当微型货车速度设定为18千米/小时，踏板车速度设定为28.8千米/小时时，模拟的运动学与真实事故数据相关性良好，碰撞位置和损伤参数与实际损伤相关性良好。当碰撞角度小于30°且微型货车碰撞速度低于40千米/小时时，驾驶员的头部损伤比后排乘客的相应损伤更具生命威胁。当碰撞角度为15°且微型货车碰撞速度在0至20千米/小时范围内时，驾驶员股骨骨折的风险高于乘客。随着碰撞角度增加到45°，在0至10千米/小时的速度范围内，乘客股骨骨折的风险高于驾驶员。在碰撞角度为60°时，这个速度范围变为0至30千米/小时，在碰撞角度为90°时变为40至70千米/小时。我们的研究表明，多体方法可以重建事故并预测驾驶员和乘客之间不同的损伤特征和风险，这有助于确定责任方。
