On the Decoupling Optimization Design Method for under Chassis Equipment Suspension System in High-speed EMU Train

被引：0
|
作者：
Xia Z. [1 ]
Zhou J. [1 ]
Gong D. [1 ]
Sun W. [1 ]
Sun Y. [1 ]
机构：
[1] Institute of Railway & Urban Rail Transit, Tongji University, Shanghai
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2019年 / 41卷 / 03期
关键词：
Decoupling degree; High-speed EMU train; Rubber element; Suspension system; Under chassis equipment;
D O I：
10.3969/j.issn.1001-8360.2019.03.009
中图分类号：
学科分类号：
摘要：
Based on the theory of dynamic vibration absorber, the inherent frequency of under chassis equipment was optimized. The influence of the coupling vibration of the under chassis equipment on the vehicle vibration performance and its mechanism was studied. Then two decoupling optimization design methods for under chassis equipment suspension system were proposed in this paper, which were forward decoupling method and inverse decoupling method. The three-direction stiffness of the rubber component in the under chassis equipment suspension system was collaboratively optimized by setting the decoupling degree and optimal frequency as optimization objectives, while the three-direction stiffness of the rubber component was set as the constraint condition. The comparison of the two optimization methods shows that the under chassis equipment can obtain favorable decoupling degrees in bouncing vibration mode, with the frequency of the vibration mode being kept near the optimal design frequency, resulting in significant damping effect of the suspension system. Compared with the forward decoupling method, the inverse decoupling method is slower in calculation speed, but better in design effect and damping effect. In practice, the decoupling optimization design methods can be selected according to the specific calculation speed and design effect. © 2019, Department of Journal of the China Railway Society. All right reserved.
引用
收藏
页码：71 / 78
页数：7
相关论文
共 15 条
  • [1] Gong D., Zhou J., Sun W., Et al., Modal Matching between Suspended Equipment and Car Body of a High-speed Railway Vehicle and In-situ Experiment, Journal of the China Railway Society, 36, 10, pp. 13-20, (2014)
  • [2] Zhang X., Li M., Study on Rubber Isolator of Hoisting Device for Hanging EMU Equipment, Journal of Dalian Jiaotong University, 33, 5, pp. 19-22, (2012)
  • [3] Zhou J., Zhang W., Sun W., Et al., Vibration Reduction Analysis of the Dynamic Vibration Absorber on the Flexible Carbody of Railway Vehicles, China Railway Science, 30, 3, pp. 86-90, (2009)
  • [4] Ma F., Morzfeld M., Imam A., The Decoupling of Damped Linear Systems in Free or Forced Vibration, Journal of Sound & Vibration, 329, 15, pp. 3182-3202, (2010)
  • [5] Jeong T., Singh R., Analytical Methods of Decoupling the Automotive Engine Torque Roll Axis, Journal of Sound & Vibration, 234, 1, pp. 85-114, (2000)
  • [6] Benaroya H., Mechanical Vibration Analysis, Uncertainites and Control, pp. 533-535, (2004)
  • [7] Chen Y.C., Zhang B.J., Chen S.Z., Model Reduction Technique Tailored to the Dynamic Analysis of a Beam Structure under a Moving Load, Shock and Vibration, pp. 1-13, (2014)
  • [8] Jacquot R.G., Optimal Dynamic Vibration Absorbers for General Beam Systems, Journal of Sound & Vibration, 60, 4, pp. 535-542, (1978)
  • [9] Gong D., Zhou J., Sun W., Influence of Under-chassis-suspended Equipment on High-speed EMU Trains and the Design of Suspension Parameters, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail & Rapid Transit, 230, 8, pp. 1790-1802, (2016)
  • [10] Chen S., Li Z., Wei Q., Study on Strictly Decoupling and Optimization Design of Automotive Powertrain Mounting System, Engineering Mechanics, 30, 9, pp. 177-183, (2013)
12