Computational & Technology Resources
an online resource for computational,
engineering & technology publications
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

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)