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M. Habib^1,2, Y. Lifei¹, Q. Chenhui¹, H. Jun¹ and Z. Chen¹

¹School of Civil Engineering & Mechanics, Huazhong University of Science & Technology, Wuhan, China
²Balochistan University of Information Technology, Engineering & Management Sciences, Quetta, Pakistan

doi:10.4203/ccp.110.208

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M. Habib, Y. Lifei, Q. Chenhui, H. Jun, Z. Chen, "A Parametric Study of Wheel-Rail Contact", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 208, 2016. doi:10.4203/ccp.110.208

Keywords: wheel-rail dynamic contact, elastic-plastic analysis, contact stress, matching performance.

Summary

Based on the finite element analysis software ANSYS/LS-DYNA, this paper established a three-dimensional finite element model of wheel/rail rolling contact with consideration of the actual geometrical shape and boundary conditions. The effects of the axle load, friction coefficient and wheel-rail relative lateral displacement on the contact zone and contact pressure were examined. The results showed that a higher axle load would enlarge the stick region and decrease absolute creepage value, and frictional coefficient could improve the adhesive performance and decrease the creep rate linearly. As the wheel-rail relative lateral displacement increased, the two point wheel-rail contacts may occured. Furthermore, the matching performance of Chinese common wheel-rail profiles were also studied in this paper. The results obtained showed that the LMa worn-type tread has a good matching performance compared with conical-tread and the LM worn-type tread, and with the LMa worn-type tread some measures should be taken to improve the adhesive performance of carriage wheels.

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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 208 A Parametric Study of Wheel-Rail Contact M. Habib^1,2, Y. Lifei¹, Q. Chenhui¹, H. Jun¹ and Z. Chen¹ ¹School of Civil Engineering & Mechanics, Huazhong University of Science & Technology, Wuhan, China ²Balochistan University of Information Technology, Engineering & Management Sciences, Quetta, Pakistan doi:10.4203/ccp.110.208 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Habib, Y. Lifei, Q. Chenhui, H. Jun, Z. Chen, "A Parametric Study of Wheel-Rail Contact", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 208, 2016. doi:10.4203/ccp.110.208 Keywords: wheel-rail dynamic contact, elastic-plastic analysis, contact stress, matching performance. Summary Based on the finite element analysis software ANSYS/LS-DYNA, this paper established a three-dimensional finite element model of wheel/rail rolling contact with consideration of the actual geometrical shape and boundary conditions. The effects of the axle load, friction coefficient and wheel-rail relative lateral displacement on the contact zone and contact pressure were examined. The results showed that a higher axle load would enlarge the stick region and decrease absolute creepage value, and frictional coefficient could improve the adhesive performance and decrease the creep rate linearly. As the wheel-rail relative lateral displacement increased, the two point wheel-rail contacts may occured. Furthermore, the matching performance of Chinese common wheel-rail profiles were also studied in this paper. The results obtained showed that the LMa worn-type tread has a good matching performance compared with conical-tread and the LM worn-type tread, and with the LMa worn-type tread some measures should be taken to improve the adhesive performance of carriage wheels. 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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