The Influence of Fastener-Pad Stiffness to the Track Vibration Behavior

C.-M. Kuo, C.-H. Huang, and H.-L. Hsu (Taiwan)


Track, Fastener , Rail Pad, Frequency, Vibration Control


As people seeking high speed traveling by trains, noise and vibration problem are becoming an important issue. Rail pad, baseplates, or cement-asphalt mortar has been adopted to alleviate vibrations. This research aims at the influence of “fastener-pad stiffness” on track vibration behavior. A vehicle-track vertically coupled model was built to simulate the dynamic responses. Dynamic responses of the track model were transformed into frequency spectrum to investigate the correlations between fastener-pad stiffness and track vibration. Preliminary guidelines of selecting appropriate pad are proposed.

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