高速列车—无碴轨道—桥梁耦合系统的车辆平稳性研究  

Research on Vehicle Stability in Coupling System of High-speed Train-Ballastless Track-Bridge

作　　者：邱哲峰[1] 鞠华[1] 许佳[1] 姚林泉[1] 朱忠奎[1] 

机构地区：[1]苏州大学城市轨道交通学院,江苏苏州215021

出　　处：《农业装备与车辆工程》2011年第12期12-14,共3页Agricultural Equipment & Vehicle Engineering

摘　　要：研究了高速列车—无碴轨道—桥梁耦合系统的动力响应问题。运用车辆-轨道耦合动力学理论,建立了高速列车—无碴轨道—桥梁耦合系统的垂向动力学模型。采用Newmark-β数值方法对系统的运动方程组进行求解,得到整个系统的振动响应。从运行平稳性角度出发,讨论了列车悬挂参数对指标的影响。结果表明:一系和二系悬挂参数的变化对列车运行平稳性均有较大影响,一系和二系悬挂刚度值变化的影响最为明显。The dynamic responses of the high-speed train-ballastless track -bridge coupling system are investigated. A vertical coupled dynamic model including high speed train, ballastless track and bridge was established based on vehicle-track coupling dynamics. Vibration responses of the whole system were obtained by using the numerical method of Newmark-~.From a view of the running stability, the influence of the suspension parameters on Sperling value was discussed. The results show that, the primary and the second suspension parameters both have influence on running stability and safety, and the stillness of the primary and the second suspension has the most significant influence.

关 键 词：高速列车 耦合系统 平稳性 sperling指标 

分 类 号：U270.11[机械工程—车辆工程]