Time-domain model for wheel-rail noise analysis at high operation speed

This paper develops a numerical model for wheel-rail noise analysis in the time-domain. This model for wheel-rail noise is based on vehicle-track coupling dynamics considering the effect of flexible wheelsets and track, and a transient wheel-rail noise prediction method. This model can approximative...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2017-08, Vol.18 (8), p.593-602
Main Authors: Han, Jian, Zhong, Shuo-qiao, Zhou, Xin, Xiao, Xin-biao, Zhao, Guo-tang, Jin, Xue-song
Format: Article
Language:English
Subjects:
Beryllium
Civil Engineering
Classical and Continuum Physics
Corrugation
Engineering
Frequency domain analysis
Industrial Chemistry/Chemical Engineering
Mathematical models
Mechanical Engineering
Noise prediction
Railroads
Time domain analysis
Transportation noise
Vibration
Wavelengths
Wheelsets
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Summary:This paper develops a numerical model for wheel-rail noise analysis in the time-domain. This model for wheel-rail noise is based on vehicle-track coupling dynamics considering the effect of flexible wheelsets and track, and a transient wheel-rail noise prediction method. This model can approximatively characterize the components of vibration and noise in the frequency range up to 3.5 kHz. The wheel-rail forces are calculated and shown in both time and frequency domains by using the vehicle- track coupling dynamic model. Then the vibration and sound of the flexible wheelset are calculated by the transient finite element- boundary element （FE-BE） prediction model at 300 kin/h, in which the effects of random irregularity and discrete supporting excitation are considered. The numerical results calculated by using the present model are discussed. The present model is also used to calculate the effect of corrugation with wavelengths of 40 mm to 300 mm on wheel-rail noise. The numerical results can be useful for academic research and engineering application to railway noise and vibration.
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A1600692