[通过固定参数计算机模拟进行的汽车与行人事故分析]
[Automobile versus pedestrian accidents analysis by fixed-parameters computer simulation].
作者信息
Mao Ming-Yuan, Chen Yi-Jiu, Liu Ning-Guo, Zou Dong-Hua, Liu Jun-Yong, Jin Xian-Long
机构信息
Medical School of Soochow University, Suzhou 215123, China.
出版信息
Fa Yi Xue Za Zhi. 2008 Apr;24(2):105-9.
OBJECTIVE
Using computer simulation to analyze the effects of speed, type of automobile and impacted position on crash-course and injuries of pedestrians in automobile vs. pedestrian accidents.
METHODS
Automobiles (bus, minibus, car and truck) and pedestrian models were constructed with multi-body dynamics computing method. The crashes were simulated at different impact speeds (20, 30, 40, 50 and 60 km/h) and different positions (front, lateral and rear of pedestrians). Crash-courses and their biomechanical responses were studied.
RESULTS
If the type of automobile and impact position were the same, the crash-courses were similar (impact speed < or = 60 km/h). There were some characteristics in the head acceleration, upper neck axial force and leg axial force.
CONCLUSION
Multi-body dynamics computer simulation of crash can be applied to analyze crash-course and injuries (head, neck and leg) of pedestrians.
目的
运用计算机模拟分析汽车与行人事故中速度、汽车类型及碰撞位置对行人碰撞过程及损伤的影响。
方法
采用多体动力学计算方法构建汽车（公交车、小型巴士、轿车和卡车）及行人模型。在不同碰撞速度（20、30、40、50和60千米/小时）及不同位置（行人前方、侧面和后方）模拟碰撞情况。研究碰撞过程及其生物力学响应。
结果
若汽车类型及碰撞位置相同，碰撞过程相似（碰撞速度≤60千米/小时）。头部加速度、上颈部轴向力及腿部轴向力存在一些特点。
结论
碰撞的多体动力学计算机模拟可用于分析行人的碰撞过程及损伤（头部、颈部和腿部）。
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