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尝试使用一次正碰的试验数据作出正碰变形能网格图并验证其精度。结果表明 ,无论是使用碰撞力对变形量进行积分还是用加速度对变形量进行积分来建立汽车的变形能网格图的方法都是可行的。当汽车的变形量较小时 ,以汽车实际变形量的开始点作为变形量计算的起点时所计算出的速度精度最高 ;当汽车的变形量较大时 ,以汽车保险杠的中点作为变形量计算的起点时所计算出的速度精度最高。使用变形能网格图对实际交通事故案例进行了分析。
Try to use the positive test data to make a positive impact deformation mesh and verify its accuracy. The results show that it is feasible to establish the deformation energy grid map of automobile by integrating the deformation with the collision force or integrating the deformation with the acceleration. When the deformation of the car is small, the accuracy of the speed calculated when the starting point of the actual deformation of the car is taken as the starting point of the calculation of the deformation is highest. When the deformation of the car is large, the midpoint of the car bumper is taken as the deformation The calculated speed starts with the highest accuracy. An actual case of traffic accident was analyzed using the deformation energy grid map.