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X.Q. Dong, Y.M. Wang, Z.S. Ren, L.D. Wang, "The Research of the Relation between Wheel Re-Profile and Wheel-Rail Dynamics for the Jing-Jin Inter-City High-Speed CRH3C EMU", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 17, 2014. doi:10.4203/ccp.104.17

Keywords: wheel re-profiles, EMU, equivalent conicity, dynamic simulation, line test.

Summary

CRH₃C electric multiple unit (EMU) is one of the main EMU types operating in the Jing-Jin inter-city high-speed railway, of which lateral car-body instability has arisen after some service wheels have been re-profiled. In order to search for the reason and solution, long-term measurement and research of the wheel-rail contact, and its influence to the dynamic behaviour of CRH₃C EMU in Jing-Jin inter-city high-speed railway, was carried out. The research showed that too low wheel-rail equivalent conicity after wheel re-profileing lead to high oscillation in the carbody. One feasible solution is a new thin flange width wheel profile. Development and design of new thin flange wheel profile had been carried out. A series of a new thin flange wheel profiles are designed for CRH₃C EMU of Jing-Jin inter-city railway after theoretical analysis and test certification. The wheel-rails relation simulation, dynamic simulation, try re-profile and operational line test show that the new series of profiles not only guaranteed the running performance by restoring the appropriate wheel-rail contact, but also effectively reduced the loss of the wheel diameter, extending the lifetime of wheels. Up to now, the new designed thin flange wheel profiles have been put in use for all CRH₃C EMUs on the high-speed railway in China.

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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 17 The Research of the Relation between Wheel Re-Profile and Wheel-Rail Dynamics for the Jing-Jin Inter-City High-Speed CRH3C EMU X.Q. Dong^1,2, Y.M. Wang², Z.S. Ren¹ and L.D. Wang² ¹School of Mechanical, Electric and Control Engineering, Beijing JiaoTong University, Beijing, China ²Locomotive & Car Research Institute, China Academy of Railway Sciences, Beijing, China doi:10.4203/ccp.104.17 purchase the full-text of this paper Full Bibliographic Reference for this paper X.Q. Dong, Y.M. Wang, Z.S. Ren, L.D. Wang, "The Research of the Relation between Wheel Re-Profile and Wheel-Rail Dynamics for the Jing-Jin Inter-City High-Speed CRH3C EMU", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 17, 2014. doi:10.4203/ccp.104.17 Keywords: wheel re-profiles, EMU, equivalent conicity, dynamic simulation, line test. Summary CRH₃C electric multiple unit (EMU) is one of the main EMU types operating in the Jing-Jin inter-city high-speed railway, of which lateral car-body instability has arisen after some service wheels have been re-profiled. In order to search for the reason and solution, long-term measurement and research of the wheel-rail contact, and its influence to the dynamic behaviour of CRH₃C EMU in Jing-Jin inter-city high-speed railway, was carried out. The research showed that too low wheel-rail equivalent conicity after wheel re-profileing lead to high oscillation in the carbody. One feasible solution is a new thin flange width wheel profile. Development and design of new thin flange wheel profile had been carried out. A series of a new thin flange wheel profiles are designed for CRH₃C EMU of Jing-Jin inter-city railway after theoretical analysis and test certification. The wheel-rails relation simulation, dynamic simulation, try re-profile and operational line test show that the new series of profiles not only guaranteed the running performance by restoring the appropriate wheel-rail contact, but also effectively reduced the loss of the wheel diameter, extending the lifetime of wheels. Up to now, the new designed thin flange wheel profiles have been put in use for all CRH₃C EMUs on the high-speed railway in China. 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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