阐述了防碰撞列车采用能量吸收装置和在车体端部设置变形区域降低碰撞作用力的设计原理。针对国外某防碰撞列车建立了碰撞模型 ,进行了碰撞动力学仿真计算。计算结果表明 ,列车防碰撞装置能够较好地减缓冲击 ,降低碰撞作用力 The design principle of anti-collision train adopting energy absorbing device and setting deformation area at the end of vehicle body to reduce collision force is described. Collision model was established for a certain anti-collision train in foreign countries, and collision dynamics simulation was carried out. The calculation results show that the train collision avoidance device can reduce the impact and reduce the collision force