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力学与实践 ›› 2009, Vol. 31 ›› Issue (4): 69-70.doi: 10.6052/1000-0879-2008-365

• 应用研究 • 上一篇    下一篇

汽车冲撞行人抛出速度探讨

贾常明   

  1. 中国刑事警察学院,辽宁沈阳,110035
  • 收稿日期:2008-07-23 修回日期:2008-07-31 出版日期:2009-08-08 发布日期:2009-08-08

ON THE LAUNCHING SPEED OF A PEDESTRIAN COLLIDED BY A CAR

  • Received:2008-07-23 Revised:2008-07-31 Online:2009-08-08 Published:2009-08-08

摘要: 针对汽车冲撞行人抛出速度问题,利用人体直杆模型,运用有关力学原 理,得出汽车与行人第一次冲撞后人体的转动角速度和平动速度,进而讨论了不同冲撞车速 下人体倒向发动机罩的可能运动状态,结果比较符合实际情况.这对交通事故鉴定工作具有应 用价值.

关键词: 冲撞速度;抛出速度

Abstract: A mechanical shaft model of human body is established to calculate the angular speed and translational speed of the body upon its first collision with a vehicle. The possible moving states of the body collapsing onto the hood at different crashing speeds are then discussed, which is found to agree with the actual circumstances. These results can be used for traffic accident investigations and identifications.

Key words: Colliding Speed, Launching Speed