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S. Fukagai, T. Ban, K. Makino, M. Kuzuta, H. Chen, "The Influence of Repetitive Rolling on the Contact Condition between Wheel and Rail", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 158, 2016. doi:10.4203/ccp.110.158

Keywords: wheel flange, rail gauge corner, derailment, ultrasonic wave, contact condition, derailment.

Summary

The reflection coefficient of the ultrasonic wave produced at the interface between the wheel flange and the rail gauge corner under the rolling contact condition was compared with that produced under the static contact condition. The reflection coefficient under the rolling condition was smaller than that of the static condition. In addition, the contact condition transition under repetitive rolling contact was investigated. Repetitive rolling contact caused an approximate decrease of sixteen percent in the reflection coefficient. This phenomenon possibly indicates an increase of the real contact area between the wheel flange and the rail gauge corner because of the surface profile change and detachment of both the oxide and adsorption layers.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 158 The Influence of Repetitive Rolling on the Contact Condition between Wheel and Rail S. Fukagai, T. Ban, K. Makino, M. Kuzuta and H. Chen Railway Technical Research Institute, Tokyo, Japan doi:10.4203/ccp.110.158 purchase the full-text of this paper Full Bibliographic Reference for this paper S. Fukagai, T. Ban, K. Makino, M. Kuzuta, H. Chen, "The Influence of Repetitive Rolling on the Contact Condition between Wheel and Rail", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 158, 2016. doi:10.4203/ccp.110.158 Keywords: wheel flange, rail gauge corner, derailment, ultrasonic wave, contact condition, derailment. Summary The reflection coefficient of the ultrasonic wave produced at the interface between the wheel flange and the rail gauge corner under the rolling contact condition was compared with that produced under the static contact condition. The reflection coefficient under the rolling condition was smaller than that of the static condition. In addition, the contact condition transition under repetitive rolling contact was investigated. Repetitive rolling contact caused an approximate decrease of sixteen percent in the reflection coefficient. This phenomenon possibly indicates an increase of the real contact area between the wheel flange and the rail gauge corner because of the surface profile change and detachment of both the oxide and adsorption layers. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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