中文摘要：

为给汽车-摩托车碰撞事故再现提供初始碰撞车速与碰撞位置的预估值,基于Pc-Crash软件所获得的仿真试验数据及支持向量回归方法,得到碰撞车速、车辆制动距离与汽车-骑车人静止位置间距离、汽车-摩托车静止位置间距离、摩托车-骑车人静止位置间距离的回归关系模型。用案例对所得模型进行演示及验证。结果表明,相关模型中决定系数大于0.993,而剩余标准差小于0.003,回归关系显著;用支持向量回归模型所得预估碰撞车速、车辆制动距离与借助Pc-Crash软件再现得到的结果很接近,相对误差均小于2%。

英文摘要：

In order to evaluate the impacted velocity and the impacted position for reconstructing a carmotorcycle accident,the relationship between the impact velocity and distance between rest positions of car and the motorcycle,that of the car and the rider,and that of the motorcycle and the rider was obtained by support vector regression and simulation data by Pc-Crash,the relationship between the braking distance of the car and those three distances was obtained based on those same data and the same method. The determined coefficient is greater than 0. 993 and the residual standard deviation is less than 0. 003 in all models,which means that the regression relationship is significant. Finally,a truth value was given,results show that the impact velocity and the braking distance of the car obtained by regression relationships were close to the value obtained by the Pc-Crash,errors are all less than 2%.