城市轨道交通线路减振扣件性能试验方法研究

Study on Test Method for the Performance of Rail Transit Fastening System

轨道交通减振扣件的性能直接影响到运营安全和对周边环境的影响,如何准确试验得到其性能参数成为线路振动噪声评估和优化设计的关键。通过QY-2型减振扣件的静、动态特性试验研究,总结出根据实际使用工况合理选择载荷范围、通过动态扫频试验法直接获得减振扣件共振频率的试验方法,该方法能有效表征减振扣件的性能。

The performance of rail fastening system directly affects the safe operation of metro and the surrounding environment,how to accurately obtain the performance parameters by testing method becomes the key to evaluate the line vibration,noise and the optimization design.Through the experimental research on the static and dynamic status of QY-2 rail fastening system,a method is summed up,which chooses reasonable load range according to actual conditions,and obtains resonant frequencies of the rail fasteners by dynamic frequency sweep test.This method can effectively characterize the rail fastening's performance.