重载运输的研究必须纳入系统工程的轨道,其中,计算机模拟技术是一种重要的研究手段。我们在全面研究列车动力学的基础上,建立了重载列车制动动力学的通用计算程序,可以对制动过程中各节车的位移、速度、加速度、车钩力、缓冲器行程等进行全面分析,对确保重载列车的安全运行极为重要。本文将模拟计算结果与线路试验结果进行了对照,取得了较好的一致性。文中分析了制动过程中车钩力变化的过程及沿车长的分布,分析了制动初速、车钩间隙、制动开始时的车钩状态、缓冲器特性及制动特性等对列车冲动的影响,同时指出了减少该冲动的途径。 Research on heavy transport must be integrated into the orbit of systems engineering. Among them, computer simulation technology is an important research method. Based on a comprehensive study of train dynamics, we established a general calculation program for braking dynamics of heavy-haul trains, which can comprehensively measure the displacement, speed, acceleration, coupling force and buffer stroke of each train during braking Analysis, to ensure the safe operation of heavy-duty train is extremely important. In this paper, the simulation results are compared with the results of the line test, and achieved good consistency. In this paper, the changing process of the hook force and the distribution along the length of the car are analyzed. The influences of the initial speed of the brake, the clearance of the coupler, the state of the coupler at the start of the braking, the characteristics of the damper and the braking characteristics on the train’s impulse are analyzed. At the same time pointed out that the impulse to reduce the way.