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G.Q. Tao¹, Z.F. Wen¹, X. Zhao¹, D.B. Cui² and X.S. Jin¹

¹State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China
²Department of Mechanical Engineering, Emei Campus of Southwest Jiaotong University, Emei, China

doi:10.4203/ccp.104.16

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G.Q. Tao, Z.F. Wen, X. Zhao, D.B. Cui, X.S. Jin, "Influence of Rail Cant and Profile on High-Speed Wheel/Rail Contact Behavior and Wheel Wear", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 16, 2014. doi:10.4203/ccp.104.16

Keywords: rail cant, rail profile, contact geometry, rolling contact, contact stress, wheel wear, high-speed railway.

Summary

The influence of rail cants and rail profiles on wheel/rail (W/R) contact behavior and wheel wear is investigated in this paper. To such an end, three different approaches, which are: an improved W/R contact geometry program, a derivative of Kalker's CONTACT, and a wheel wear model composed of vehicle dynamics, contact analysis and the wear model of Archard, are employed to calculate the contact points, the rolling contact solution and wheel wear, respectively. The S1002CN wheel profile is used for all the simulations. It is found that rail cants and rail profiles have a significant effect on the rolling contact of W/R and wheel wear. Contact points are close to the gauge corner on the CHN60 rail profile, while stays close to the rail top center on the UIC60E2. With the rail cant of 1:40, the contact stress applied to the CHN60 is higher than to the UIC60E2. The wheel wear of matching UIC60E2 is smaller than the CHN60 under the same rail cant, both on straight and curved track. Hence, re-grinding the CHN60 rail profile to the UIC60E2 is a possible measure to reduce wheel wear and postpone the occurrence of hollow wear.

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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: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 16 Influence of Rail Cant and Profile on High-Speed Wheel/Rail Contact Behavior and Wheel Wear G.Q. Tao¹, Z.F. Wen¹, X. Zhao¹, D.B. Cui² and X.S. Jin¹ ¹State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China ²Department of Mechanical Engineering, Emei Campus of Southwest Jiaotong University, Emei, China doi:10.4203/ccp.104.16 purchase the full-text of this paper Full Bibliographic Reference for this paper G.Q. Tao, Z.F. Wen, X. Zhao, D.B. Cui, X.S. Jin, "Influence of Rail Cant and Profile on High-Speed Wheel/Rail Contact Behavior and Wheel Wear", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 16, 2014. doi:10.4203/ccp.104.16 Keywords: rail cant, rail profile, contact geometry, rolling contact, contact stress, wheel wear, high-speed railway. Summary The influence of rail cants and rail profiles on wheel/rail (W/R) contact behavior and wheel wear is investigated in this paper. To such an end, three different approaches, which are: an improved W/R contact geometry program, a derivative of Kalker's CONTACT, and a wheel wear model composed of vehicle dynamics, contact analysis and the wear model of Archard, are employed to calculate the contact points, the rolling contact solution and wheel wear, respectively. The S1002CN wheel profile is used for all the simulations. It is found that rail cants and rail profiles have a significant effect on the rolling contact of W/R and wheel wear. Contact points are close to the gauge corner on the CHN60 rail profile, while stays close to the rail top center on the UIC60E2. With the rail cant of 1:40, the contact stress applied to the CHN60 is higher than to the UIC60E2. The wheel wear of matching UIC60E2 is smaller than the CHN60 under the same rail cant, both on straight and curved track. Hence, re-grinding the CHN60 rail profile to the UIC60E2 is a possible measure to reduce wheel wear and postpone the occurrence of hollow wear. purchase the full-text of this paper (price £20) 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 £65 +P&P)
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