In order to study the dynamic characteristics of metro train under rescue conditions, a detailed dynamic model with different train formations is established, taking into account the characteristics of wheel-rail contact, nonlinear characteristics of suspension components, and nonlinear hysteresis characteristics of the draft gear systems. To verify the accuracy of the simulation results, field tests are carried out and comparison is made between simulation and test results. Then, simulation analyses are conducted under the condition of AW0 rescues AW0, AW0 rescues AW3, and AW3 rescues AW3. Based on the simulation results, the longitudinal dynamic characteristics of the train under different rescue conditions are compared, and the influence of the longitudinal impulse on the dynamic performance of coupler and vehicle is analyzed. Finally, some suggestions are put forward to improve the draft gear as well as the rescue method.

中文翻译：

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救援条件下地铁列车的动态特性

为了研究地铁列车在救援条件下的动力特性，建立了详细的动车组动力学模型，其中考虑了轮轨接触特性，悬架部件的非线性特性以及起落架的非线性滞后特性。系统。为了验证仿真结果的准确性，进行了现场测试，并对仿真结果与测试结果进行了比较。然后，在AW0抢救AW0，AW0抢救AW3，AW3抢救AW3的条件下进行仿真分析。根据仿真结果，比较了列车在不同救援条件下的纵向动态特性，并分析了纵向冲击对车钩和车辆动力性能的影响。最后，