Research on Performance of Steel Spring Damper Switch in Urban Rail Transit
The switch is a kind of connection equipment for the conversion of locomotive and train lines,while the subway switch is generally set in the station area,when several subway lines are interspersed,the noise generated by the train is larger,especially when it is near residential buildings and underground shops,it can not effectively control the noise.In recent years,the steel spring floating plate bed is widely used in the field of rail transit.The system organically combines the whole bed and the elastic damping spring isolator to form a mass and spring vibration damping system,which can absorb and suppress structural noise conduction,has good three-dimensional elasticity and stability,and can greatly reduce the impact of vibration and noise on the environment during train running.In order to scientifically evaluate the actual vibration reduction effect of steel spring turnout system,this paper comprehensively analyzes the vibration characteristics of rail,floating plate and tunnel wall when the train passes through the station,and compares and analyzes the vibration reduction effect of various track structures from two aspects of time domain and frequency domain to verify the performance of steel spring vibration reduction turnout.
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