This paper describes track vibration levels and rail roughness growth measurements carried out on a number of tracks with different values of track stiffness and rail damping at a number of metro systems in China. At each test site, measurements of rail surface roughness were repeated several times over a period of time. The results provide useful data on the progress of rail roughness growth, and of change in track vibration levels in the medium term. Rail roughness increased noticeably on the stiffer track, whereas it decreased on the track with tuned dampers attached to the rail. Comparing with the standard baseplate track, the vibration levels measured on the rails in both vertical and lateral directions are all lower on the track with lower stiffness support and tuned vibration dampers.
Effects of Track Stiffness and Tuned Rail Damper on Rail Roughness Growth and Rail Vibration Levels on Metro System
Notes Numerical Fluid Mech.
Noise and Vibration Mitigation for Rail Transportation Systems ; Kapitel : 79 ; 667-674
01.01.2015
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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