大量的客車車体沿車钩中心綫拉伸压縮試驗表明,端墙实际上在全高范圍內是不受力的。根据已經进行的試驗研究,在車辆沿纵向中心綫碰撞的情况下,端墙从冲击方向在端墙与底架緩冲梁的結合处,承受着很大的由上弦带和車頂质量的慣性作用所引起的弯距。但是,在車钩冲击力为300～500吨 A large number of passenger car bodies stretch along the center line of the coupler Compression tests show that the end walls are virtually unstressed in the full height range. According to the experimental studies that have been carried out, in the event of a collision of the vehicle along the longitudinal centerline, the end wall from the impact direction at the junction of the end wall and the bumper beam of the chassis is subjected to a large Inertial action caused by the bending. However, the impact of the coupler 300 to 500 tons