空气弹簧刚度对高速列车运行平稳性的影响分析[EB/OL]
北京：中国科技论文在线
而空气弹簧的纵向刚度对高速列车的平稳性指标影响不明显
空气弹簧的横向刚度和垂向刚度对高速列车的平稳性指标和加速度影响较大
） 摘要： 为了探明高速列车空气弹簧刚度对运行平稳性的影响规律
利用车辆-轨道耦合动力学理论建立了高速车辆和双块式无砟轨道系统振动模型
讨论了列车空气弹簧参数与运行平稳性指标之间的相关性
运行速度对高速列车平稳性影响较大
） Abstract： In order to study the influence of the stiffness of air spring on the running ride comfort of high-speed train, the vibration model of train and bi-block ballastless track system is established using vehicle-track coupled dynamics
Assuming the vehicle model as multi-rigid-body system and the rail model as discrete supported infinite Euler beam hinged at both ends, the new explicit integration method is used to solve the nonlinear equations of vehicle-track coupling dynamics, and to calculate and analyze the running ride comfort of high speed train, furthermore to investigate the relationship between the parameters of air spring and the running ride comfort indexes
The results show that the lateral stiffness and vertical stiffness of air spring of high speed train have a great effect on the ride comfort indexes and the acceleration of car body, while the influence of the longitudinal stiffness of air spring on the ride comfort indexes is less obvious
The unmatched parameters of lateral stiffness and vertical stiffness will worsen the running stability and reduce the ride comfort
In order to improve the running ride comfort of high-speed train, the stiffness parameters of air spring need be configured reasonably
The running speed has a greater impact on the running ride comfort
The running ride comfort indexes and acceleration of the car body increase gradually with the speed increasing
Within a reasonable range of structural parameters of railway lines
