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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 104
PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo
Paper 201
Experimental Investigation of the Effect of Short-Pitch Rail Corrugation on Dynamic Behaviors of Metro Vehicle and Track Components W. Li, L. Ling, Z. Wen, X. Du, Y. Cao and X. Jin
State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China W. Li, L. Ling, Z. Wen, X. Du, Y. Cao, X. Jin, "Experimental Investigation of the Effect of Short-Pitch Rail Corrugation on Dynamic Behaviors of Metro Vehicle and Track Components", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 201, 2014. doi:10.4203/ccp.104.201
Keywords: metro, short-pitch rail corrugation, vehicle and track interaction, vibration, rail grinding.
Summary
Short-pitch rail corrugations with wavelength of 30-40 mm have been found in
straight and curved tracks in a Guangzhou metro line. The failures of coil springs of
primary suspension of vehicle and rail fastener clips are closely related to the shortpitch
rail corrugation. Vibration accelerations of vehicle and track components were
measured simultaneously in the corrugated tracks. Accelerations of railheads, rail
fastener clips, axle boxes and bogie frames are very sensitive to the short-pitch rail
corrugation. Vibration characteristics induced by the rail corrugation with the
passing frequency of about 625-833 Hz have been found in the components of both
track and vehicle. High-frequency vibrations of the components can be eliminated
after rail grinding.
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