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Vertical Track Irregularity Influence on the Wheel High-Frequency Vibration in Wheel-Rail System
Joint Authors
Lei, Yang
Tian, Xinyu
Qi, Falin
Chen, Dongsheng
Tian, Tian
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-29
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A three-dimensional deformable finite element model of wheel-rail system is established.
The vertical vibration natural frequencies are calculated by modal analysis.
The improved central difference method by ABAQUS explicit nonlinear dynamics module is chosen to calculate the vertical vibration of wheel axle.
Through the vibration measurement experiment of L M A wheel by China Academy of Railway Sciences, the contact parameter is optimized and the model is modified.
According to the nonlinear simulation results, the important influence of vertical track irregularity on the wheel set high-frequency vibration is discovered.
The advantage frequencies through spectrum are close to the vertical vibration natural frequencies of seventh, eighth, ninth, and tenth mode.
When the velocity is 350 km/h, system’s nonlinear dynamic characteristic is higher than the results at 200 km/h.
The critical wavelength of vertical track irregularity on the wheel vertical vibration is about 0.8 m.
In addition, a particular attention should be paid to one situation that the main dominant frequency amplitude is more than 50% of the acceleration amplitude even if the peak acceleration is low.
American Psychological Association (APA)
Lei, Yang& Tian, Xinyu& Qi, Falin& Chen, Dongsheng& Tian, Tian. 2016. Vertical Track Irregularity Influence on the Wheel High-Frequency Vibration in Wheel-Rail System. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1112265
Modern Language Association (MLA)
Lei, Yang…[et al.]. Vertical Track Irregularity Influence on the Wheel High-Frequency Vibration in Wheel-Rail System. Mathematical Problems in Engineering No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1112265
American Medical Association (AMA)
Lei, Yang& Tian, Xinyu& Qi, Falin& Chen, Dongsheng& Tian, Tian. Vertical Track Irregularity Influence on the Wheel High-Frequency Vibration in Wheel-Rail System. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1112265
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112265