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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 157
Wheel-Rail Endpost Contact Characterisation using Ultrasound Reflectometry
L. Zhou and R. Lewis
Department of Mechanical Engineering, The University of Sheffield, United Kingdom
Full Bibliographic Reference for this paper
L. Zhou, R. Lewis, "Wheel-Rail Endpost Contact Characterisation using Ultrasound Reflectometry", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 157, 2016. doi:10.4203/ccp.110.157
Keywords: insulated rail joints, endpost, ultrasound reflectometry, contact pressure, finite element analysis.
Summary
In this paper, an ultrasound reflectometry technique for contact measurements was used to characterize the wheel-endpost and rail edges contact. Finite element analysis was also carried out with a three-dimensional model. Ultrasonic measurements and finite element simulations were carried out with varied loads and different endpost thickness. A new approach investigating the wheel-endpost contact is introduced and a pilot study using ultrasound reflectometry on the combined materials contact measurements is included.
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