路况与地铁车辆振动关系的测试分析研究

Research on relationship between track condition and metro vehicle vibration

随着地下轨道交通的发展,地铁车辆振动对车辆寿命的影响和对人体健康造成损害的问题日益受到人们的重视。利用数据采集仪和振动加速度传感器组建振动测试系统,当地铁车辆在隧道内按照正常运行模式运行时,采集驾驶室及客室地板上的振动信号,分析车辆振动信号随隧道内各种不同路况(如弯道,上、下坡道等)的变化产生的变化规律,得到车辆振动与路况之间的关系。结果表明,地铁车辆振动除受本身结构和轨道铺设的地质条件影响,还与其所运行的轨道线路路况有着密切的关系。

With the development of underground rail,the problem that vehicle vibration affects the vehicle＇s life-span and harms the health of the passenger has been concerned.A vibration test system has been formed with data collecting instrument and acceleration sensors to collect the signals of the metro vehicle floor when it running at the ATO（auto train operation） mode in the tunnel.The changes of vehicle vibration signal were analyzed v.s.the changes correspond to the route condition,such as curve,slope,and so on.Relationships between the road condition and vehicle vibration were established.The analysis result shows that,the vehicle vibration not only be affected by the structure of the vehicle itself and the geological condition of track,but also has close relationship with the route condition.