According to the analysis of influencing factors of vehicle crash compatibility and the design of optimi-zation strategies on MPDB,the MPDB collision test compatibility evaluation procedure is introduced,the MPDB collision test model is established,and the influence factors on the quality,speed difference between two vehicles and relative stiffness are clarified,four optimization schemes are proposed from the angles of curb weight,colli-sion area,stiffness distribution and increasing energy transfer path,the relevant schemes are verified by model simulation.The results show that the non-uniform energy distribution is the main reason affecting the compati-bility during collision,the methods including simply reducing the curb weight,increasing the collision contact ar-ea and optimizing the stiffness distribution can improve the compatibility,however,it is not as obvious as in-creasing the energy transfer path.
关键词
相容性/移动渐进可变形壁障/碰撞模型/能量传递路径
Key words
compatibility/MPDB/collision model/energy transfer path
维普
万方数据