轨道不平顺激励下高速铁路桥上列车走行性研究

Studies on Runability of Train Excited by the Irregularity of Track on the High-Speed Railway Bridge

用车桥耦合动力学的理论,对长波不平顺和短波不平顺激励下桥上列车的走行性进行了研究。着重研究了横向不平顺激励下列车的轮轨力、脱轨系数和横向加速度的变化规律。并以列车的安全性和旅客的舒适性为标准,得出短波不平顺主要影响列车运行安全性,而长波不平顺主要影响列车运行舒适性的结论。

This paper analyzes the runnability of train excited by the irregularity of short- and long- wave with the vehicle-bridge couple dynamics theory, mainly studies the trend of wheel/rail force, derailment coefficient and lateral acceleration excited by the irregularity of track. Considering the running safety and passengers＇ comfort, the paper made following conclusions that short wave irregularities influence the safety of vehicle and long wave irregularities influence the comfort of passengers.