This paper presents the results of a comprehensive trial of friction management techniques carried out over a 7 month period at a curve in Sydney. The trial tested various top-of-rail friction modification and gauge face lubrication products, both in isolation and in combination, applied at different volumes and locations around the curve. Noise and vibration transducers were situated at three locations around the curve, one upstream of the treatment and the other two downstream. At the upstream location, rolling stock data was also available from a permanent wayside geometry monitoring system.
The findings provide a number of valuable new insights into the performance of gauge face lubrication and top-of-rail friction modification for curve noise mitigation. The most significant finding was that gauge face lubrication of the outer rail provided a substantial reduction of severe tonal wheel squeal at the test curve. This is at odds with conventional theory that wheel squeal is controlled by friction characteristics at the top of rail / wheel-tread interface (rather than the gauge corner / wheel flange interface).
Field Trials of Gauge Face Lubrication and Top-of-Rail Friction Modification for Curve Noise Mitigation
Notes Numerical Fluid Mech.
Noise and Vibration Mitigation for Rail Transportation Systems ; Kapitel : 54 ; 449-456
2015-01-01
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
British Library Conference Proceedings | 2015
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