公轨两用部分斜拉桥耦合振动分析与行车舒适度评价

摘要

以重庆东水门长江大桥为研究对象，建立车桥耦合动力系统，对其振动响应及行车舒适度进行研究。采用多刚体结构模拟车辆，空间杆系单元模拟桥梁，分别计算桥梁耦合轻轨车、桥梁耦合汽车、桥梁耦合轻轨车及汽车的动力响应，并对桥上轻轨车及汽车的行车舒适度作出评价。结果表明，轻轨车和汽车的行车舒适度均满足要求。%With Chongqing Dongshuimen Yangtze River Bridge as the object of research, this paper establishes a vehicle-bridge coupling dynamic system and studies its response to vibration and comfort degree of driving. The paper adopts multi-rigid-body structures to simulate vehicles and spatial link elements to simulate bridges, calculates dynamic responses of bridge coupling light-rail vehicles and automotives, respectively, and evaluates the comfort degree of driving of light -rail vehicles and automotives on bridges. The results show that the comfort degree of driving of both light-rail vehicles and automotives satisfies the requirements.