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为研究汽车碰撞散落物的材料性能对其运动特性的影响,进一步完善交通事故再现中汽车碰撞散落物的运动行为理论模型,建立汽车碰撞散落物的运动学仿真模型,通过仿真试验,模拟了在散落初始条件相同的情况下,汽车碰撞弹性、弹塑性、塑性散落体的运动,分析了在试验条件一定时,3种材料性能的汽车碰撞散落体的运动特性的异同及其随散落速度、散落高度、散落角度的变化关系。模拟试验结果分析表明:存在散落角度的汽车碰撞散落体其非线性运动轨迹受材料性能影响较大。
In order to study the influence of the material properties of car crashing scattered materials on its movement characteristics and to further improve the theoretical model of car crashing scattered traffic in traffic accident reconstruction and to establish the kinematics simulation model of car crashing scattered materials, The similarities and differences of the motion characteristics of the vehicle crashing bulk bodies with the three kinds of material properties under the same test conditions are analyzed under the same initial conditions of scattering and the movement of the crashing elastic, Height, scattered angle of change relations. The results of simulation test show that the non-linear motion trajectory of scattered vehicle collision with scattering angle is greatly influenced by the material properties.