Computational Technology Resources - CCP

G.H. Huang, W.H. Zhang, Y.P. Fu, S.L. Liang, X.Y. Wang, "Nonlinear Dynamics of a Gear Transmission System under Parametric and Self-Excited Excitation on a High-Speed Train", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 309, 2014. doi:10.4203/ccp.104.309

Keywords: gear transmission system, parametric vibration, self-excited vibration, stick-slip vibration, dynamics, high-speed train.

Summary

Gear vibration is one kind of parametric vibration, meanwhile, the vibration of a gear transmission system under slippage is also a self-excited torsional vibration. In order to study the torsional vibration of the gear transmission system under slippage in a high-speed train, a parametric vibration model of the gear transmission system was developed where the time-varying stiffness and the transmission error were considered. In the model, time-varying mesh stiffness of meshing teeth pairs was calculated using finite element analysis and expanded using the technique of Fourier series. Based on this model, the nonlinear characteristic of self-excited torsional vibration caused by the wheel-rail creep ratio was analyzed. Further, a multi-body dynamics model of the motor car including the driving system was established. Results show that when the wheel-rail creep ratio is in excess of the best value, selfexcited vibration occurs and the gear transmission system exhibits the phenomenon of a limited cycle at the same time. The self-excited vibration has no effect on the change of the main frequencies of the gear transmission system, but causes a strong vibration of the gear transmission system. The gear angular acceleration, gear meshing force and the acceleration of the gearbox will dramatically increase when the stick-slip oscillation happens, this should be avoided in the train operation.

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)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
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 309 Nonlinear Dynamics of a Gear Transmission System under Parametric and Self-Excited Excitation on a High-Speed Train G.H. Huang¹, W.H. Zhang¹, Y.P. Fu¹, S.L. Liang² and X.Y. Wang² ¹State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, China ²CNR, Changchun Railway Passenger Vehicles Co., Ltd., Changchun, Jilin, China doi:10.4203/ccp.104.309 purchase the full-text of this paper Full Bibliographic Reference for this paper G.H. Huang, W.H. Zhang, Y.P. Fu, S.L. Liang, X.Y. Wang, "Nonlinear Dynamics of a Gear Transmission System under Parametric and Self-Excited Excitation on a High-Speed Train", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 309, 2014. doi:10.4203/ccp.104.309 Keywords: gear transmission system, parametric vibration, self-excited vibration, stick-slip vibration, dynamics, high-speed train. Summary Gear vibration is one kind of parametric vibration, meanwhile, the vibration of a gear transmission system under slippage is also a self-excited torsional vibration. In order to study the torsional vibration of the gear transmission system under slippage in a high-speed train, a parametric vibration model of the gear transmission system was developed where the time-varying stiffness and the transmission error were considered. In the model, time-varying mesh stiffness of meshing teeth pairs was calculated using finite element analysis and expanded using the technique of Fourier series. Based on this model, the nonlinear characteristic of self-excited torsional vibration caused by the wheel-rail creep ratio was analyzed. Further, a multi-body dynamics model of the motor car including the driving system was established. Results show that when the wheel-rail creep ratio is in excess of the best value, selfexcited vibration occurs and the gear transmission system exhibits the phenomenon of a limited cycle at the same time. The self-excited vibration has no effect on the change of the main frequencies of the gear transmission system, but causes a strong vibration of the gear transmission system. The gear angular acceleration, gear meshing force and the acceleration of the gearbox will dramatically increase when the stick-slip oscillation happens, this should be avoided in the train operation. 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)
Back to top	©Civil-Comp Limited 2023 - terms & conditions