玻璃碎片抛距理论模型用于推算汽车碰撞速度的研究

Study on Theoretical Model of Glass Splinter Throw Distance for Calculating Automobile Collision Velocity

本文研究了玻璃碎片的运动规律,建立了广义抛物运动数学模型,提出了求算模型参数的方法。然后用不同方法求出一个事故案例的汽车碰撞速度。结果比较表明,本文提出的广义抛物运动模型可以计算事故的碰撞速度。同其它方法相比,它具有可以推算碰撞地点位置、玻璃碎片场不易破坏、参数容易确定的优点。

In this paper, the motion mechanism of glass splinter is studied in depth; the generalized motion formula of glass splinter is deduced and the calculating methods of its parameters are giver. Then the collision velocity of a real accident example is estimated using different methods. The comparision of the results shows that the generalized motion model can be used to calculate collision velocity. This method, compared with others, has advantages that the collision position can be estimated, the glass splinter field can be kept and parameters can be evaluated easier.