Analysis of dynamic behaviour of high-speed railway vehicle with faulty anti-hunting damper

Wang Yi-Xuan, Chen En-Li, Qi Zhuang, Liu Peng-Fei, Zhang Lin

Abstract


With factors such as temperature, pressure and the percentage of the air in oil taken into consideration, the relation between the force of the faulty damper and the gap of oil seal is analyzed by observing the change of the oil stiffness while the oil seal was worn continually. And the influence of the faulted damper on the stability, running performance and the curve negotiation capability of high-speed train is analyzed by using the Adams/Rail software package. The full vehicle models with different degrees of faulty anti-hunting dampers were simulated. Results show that the excessive worn of the oil seal of the anti-hunting damper can lead to the decrease of its oil stiffness, which reduces its actual damper force. The working condition of anti-hunting damper has great effect on train stability. If the worn oil seal deteriorated continually, the nonlinear critical velocity of the high-speed vehicle would be reduced seriously. When the oil seal gap wears to 0.2 mm, the critical velocity of the vehicle with faulty anti-hunting damper decreases by 21.4% compared to the normal vehicle. And the lateral axial force would be increased by 4.2 % when the oil seal gap is worn to 0.2 mm on curve track. However it can hardly affect the vertical running performance.


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References


Lee K. Numerical Modeling for the Hydraulic Per-formance Prediction of Automotive Mono-tube Dampers. Vehicle System Dynamics. 1997; 28:25-39.

Purdy DJ. Theoretical and experimental investigation into an adjustable automotive damper. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 2000, 214(3):265-283.

Eyres RD, Champneys AR, Lieven NAJ. Modeling and Dynamics Response of a Damper with Relief Valve. Nonlinear Dynamics. 2005;40:119-147.

Wang W. Research on Oil Temperature Dependency and Heat Dispersion Parameter Design of Oil Damper. China Mechanical Engineering. 2003,08:637-640.

Gao Xin-sheng, Yao Xiao-qing. The common faults and maintenance of train damper. Journal of railway transportation equipment and technology. 2013,06:36-37.

You-Quan F. Research on damper system of railway vehicle hydraulic damper and failure of its key points. PhD Thesis, Southwest Jiaotong University 2014; China.

Gui-Shan J, Chun-Yuan S. Discussion of the opera-tion performance of the dampers and traction rod nodal points of bogies for CRH3C multiple units. Journal of the China Railway Society. 2013:35-28.

Andres LS, Diaz SE. Flow visualization and forces from a squeeze film damper operating with natural air en-trainment. Journal of Tribology. 2003, 125(2): 325-333.

Teng-Yang X, Mao-Ru C, Zhao-Tuan G, Cheng-Xiao K, Xiao-Mao. X Research on Dynamic Performance of Yaw Damper. Electric drive for locomotives. 2017,2:1-5.

Gao-Xin X. Parametric Modeling of High-speed Train Hydraulic Dampers. M.Sc. Thesis, Nanchang University 2010; China.

Zhuangyun L. Handbook of hydraulic pneumatics and hydraulic engineering. China: Electronic Industry Press, Beijing, 2008

Jian-Xin L, Kai-Yun Y. Effect of yaw dampers on locomotive riding comfortability. Journal of Traffic and Transportation Engineering. 2006, 6(4):1-4.

Yong-Qiang L, Ying-Ying L, Shao-Pu Y, Chang-Sheng H. Effects of on-off semi-active control on dynamic performance of high-speed EMUs. Journal of Vibration and Shock. 2016; 1:70-73.

Zeng J. Influence of the damper rubber joint stiffness on the critical speed of railway passenger car system. China Railway Science 2008;(2):94-97.


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