中文摘要：

车钩缓冲装置传递车辆之间的纵向作用力并缓和车辆之间的冲击力，对于改善车辆受力状况和运行性能具有非常重要的意义。利用空气制动仿真系统与三维空间耦合动力学仿真系统联合仿真，将普通车钩与拉杆式车钩进行编组，分析了列车分别由以下三种情况下连接的纵向车钩力：普通车钩、普通车钩与拉杆式车钩组合、拉杆式车钩。对比三种编组，提出一种相对合理的方案。计算结果表明，列车在普通车钩与拉杆式车钩混合编组连接下的动力学性能较好。

英文摘要：

Coupler and draft gear transfers the longitudinal force between trains and eases the impact force between vehicles, which plays an important role in improving vehicle stress state and operating performance. A method named Modular Modeling Method Based on Circular-Variable and combined with the air brake train simulation system based on the air flow theory have been used, and analyzed the coupler force of train connected as follows： coupler or the combination coupler of coupler and drawing-bar or drawing-bar. A reasonable scheme is put forward by contrasting the three combinations. The results show that the train has a better dynamics performance when connected by the combination coupler and drawing-bar.