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目前国内是参考铁道客车的标准提出轻轨用列车缓冲器的性能指标,并据此选择轻轨列车缓冲器容量和动态阻抗特性。由于城轨车辆采用动力分散的模式,且编组很少,在正常工况下所受车钩力很小,所以参照铁道客车标准选择的缓冲器容量和动态阻抗力往往过高。采用动力学的分析方法确定了动态阻抗特性改变前后的列车纵向冲动量,提出在满足性能和安全要求的前提下,可以降低缓冲器的动态阻抗力和容量,不仅可以改善列车的纵向冲动、提高缓冲器的使用寿命,而且能够降低制造成本。
At present, reference is made to the standards of railway passenger cars to propose the performance indexes of the light rail train buffers, and the light rail train buffer capacity and dynamic impedance characteristics are selected accordingly. Because the urban rail vehicles adopt the power-dispersive mode and have few marshalling groups, and the load-carrying capacity under normal conditions is very small, the buffer capacity and the dynamic resistance force selected according to the standards of railway passenger cars are often too high. The method of dynamic analysis was used to determine the longitudinal momentum of the train before and after the change of the dynamic impedance characteristics. It was proposed that the dynamic impedance and capacity of the damper could be reduced under the premise of meeting the performance and safety requirements, which not only improved the longitudinal impulse of the train, Buffer life, and can reduce manufacturing costs.