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Civil-Comp Proceedings
ISSN 1759-3433
ISSN 1759-3433
CCP: 110
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 306
Rolling Bearing Life Estimation based on Measured Wheel-Rail Forces for Conventional and Innovative Wheelsets
A. Bracciali and G. Megna
Dipartimento di Ingegneria Industriale, Università di Firenze, Italy
Full Bibliographic Reference for this paper
A. Bracciali, G. Megna, "Rolling Bearing Life Estimation based on Measured Wheel-Rail Forces for Conventional and Innovative Wheelsets", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 306, 2016. doi:10.4203/ccp.110.306
Keywords: bearings, life estimation, independently rotating wheels, AIR wheelset. .
Summary
Validation of bearings for railway wheelsets is performed by using international standards. This approach reflects both the long experience and the uncertainty in the actual loads that depends on the service performed by the vehicle. It is applicable only when "conventional" bearings are used, i.e. a pair of rolling bearings installed on journal seats at the end of the axle or between the wheels. This paper evaluates the life of such bearings on the basis of a given mixed service and compares it to the life of the bearings equipping a new wheelset with "apparently" independently rotating wheels.
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