Research on Dynamic Characteristics of Stabilizing Device-Ballast Track Coupled System for Dynamic Stabilizer
A stabilizing device-rail row-ballast bed coupled model for the analysis of the dynamic stabilizer during the operation process is proposed.According to the standard of railway industry,five kinds of track bed states are set up,and a virtual prototype simulation model is established based on ADAMS.The effects of bed state and operating parameters on the lateral vibration re-sponse of the coupled system are systematically discussed,as well as the interaction between the research objects.The research re-sults show:the resonance frequency of the system increases with the increase of the state parameters of the bed in the range of 5 kinds of track beds;there is a negative linear correlation between the vertical pressure and the vibration response amplitude,and Its effect on amplitude is significantly lower than that of the excitation frequency;the lateral acceleration,velocity and displacement amplitudes of the stabilizer and sleeper are similar,which is significantly larger than that of the ballast;The vibration energy of the exciter is mainly absorbed by the ballast;in the state of the 2-level track bed,the amplitudes of response parameters of sleepers and ballast-bed blocks decrease sharply from the No.3response output point,during the process of stabilizing operation.
Track Dynamic StabilizerRail RowBallast BedVibration ResponseExcitation Frequency
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