为了解决汽车碰撞事故再现模型病态性的问题,采用汽车碰撞模拟法分析了参数变化对模型病态性的影响;以矩阵扰动理论为基础分析了模型病态性的本质;提出了通过处理原始方程组解决模型病态性的方法,通过实例验证了该方法的有效性。
In order to solve the ill-conditioned problem in the vehicle crash accident reconstruction model, the effects of the parameter change on the ill-condition of model are analyzed by using the vehicle impact simulation method. The nature of model iU-eondition is studied based on thematrix disturbance theory. The method for solving the ill-condition of model is put forward by improving the original linear equations. The result of its application verifies the effectiveness of the method.