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H.J. Zhang, H.Y. Wang, Z.F. Wen, X.S. Jin, "Braking Simulation of a High-Speed Railway Vehicle in Low Adhesion Conditions", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 311, 2014. doi:10.4203/ccp.104.311

Keywords: adhesion, brake, railway vehicle dynamics, high-speed railway, anti-slip, dynamic simulation.

Summary

In this study, a multi-body dynamic model of a high-speed railway vehicle including an anti-slip control system is built to study the braking performance of the high-speed vehicle under low wheel/rail adhesion conditions. A high-speed vehicle model is established using the structures and parameters of a high-speed vehicle in service. The wheel/rail adhesion is determined using an adhesion model that can well describe the wheel/rail adhesion near the adhesion limit. A logic gate anti-slip control is used in the braking control model for its robustness. Co-simulation of a vehicle dynamic model and anti-slip control model is conducted to study the braking performance of the high-speed vehicle. Simulation results show that the static coefficient of friction (COF) has a large effect on the braking performance of a high-speed vehicle when the static COF is below 0.1. When the COF is larger than 0.1, an increasing adhesion level does not improve the braking performance. Both factors K_A and K_S from Polach adhesion model, which can influent the characteristic of adhesion curve, have little effect on the braking performance.

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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 311 Braking Simulation of a High-Speed Railway Vehicle in Low Adhesion Conditions H.J. Zhang, H.Y. Wang, Z.F. Wen and X.S. Jin State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, China doi:10.4203/ccp.104.311 purchase the full-text of this paper Full Bibliographic Reference for this paper H.J. Zhang, H.Y. Wang, Z.F. Wen, X.S. Jin, "Braking Simulation of a High-Speed Railway Vehicle in Low Adhesion Conditions", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 311, 2014. doi:10.4203/ccp.104.311 Keywords: adhesion, brake, railway vehicle dynamics, high-speed railway, anti-slip, dynamic simulation. Summary In this study, a multi-body dynamic model of a high-speed railway vehicle including an anti-slip control system is built to study the braking performance of the high-speed vehicle under low wheel/rail adhesion conditions. A high-speed vehicle model is established using the structures and parameters of a high-speed vehicle in service. The wheel/rail adhesion is determined using an adhesion model that can well describe the wheel/rail adhesion near the adhesion limit. A logic gate anti-slip control is used in the braking control model for its robustness. Co-simulation of a vehicle dynamic model and anti-slip control model is conducted to study the braking performance of the high-speed vehicle. Simulation results show that the static coefficient of friction (COF) has a large effect on the braking performance of a high-speed vehicle when the static COF is below 0.1. When the COF is larger than 0.1, an increasing adhesion level does not improve the braking performance. Both factors K_A and K_S from Polach adhesion model, which can influent the characteristic of adhesion curve, have little effect on the braking performance. 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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