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Shock and Vibration
Volume 2018 (2018), Article ID 6759105, 13 pages
https://doi.org/10.1155/2018/6759105
Research Article

Research on the Vibration Insulation of High-Speed Train Bogies in Mid and High Frequency

1State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
2Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China

Correspondence should be addressed to Xuesong Jin; nc.ude.utjws.emoh@nijsx

Received 24 September 2017; Accepted 24 December 2017; Published 13 February 2018

Academic Editor: Evgeny Petrov

Copyright © 2018 Jia Liu and Xuesong Jin. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

According to a large amount of the test data, the mid and high frequency vibrations of high-speed bogies are very notable, especially in the 565~616 Hz range, which are just the passing frequencies corresponding to the 22nd to 24th polygonal wear of the wheel. In order to investigate the main cause of wheel higher-order polygon formation, a 3D flexible model of a Chinese high-speed train bogie is developed using the explicit finite element method. The results show that the couple vibration of bogie and wheelset may lead to the high-order wears of wheel. In order to reduce the coupled resonance of the wheelset and the bogie frame, the effects of the stiffness and damping of the primary suspensions, wheelset axle radius, and bogie frame strength on the vibration transmissibility are discussed carefully. The numerical results show that the resonance peaks in high frequency range can be reduced by reducing the stiffness of axle box rotary arm joint, reducing the wheelset axle radius or strengthening the bogie frame location. The related results may provide a reference for structure improvement of the existing bogies and structure design of the new high-speed bogies.