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Influence study of rail geometry and track properties on railway rolling noise

Influence study of rail geometry and track properties on railway rolling noise
Influence study of rail geometry and track properties on railway rolling noise
Wheel/rail interaction generates an excitation due to the roughness present on the surface of both components that produces vibration and consequently rolling noise. In this work, the railway track properties that most influence rolling noise are identified and this influence is analysed to reduce noise emission. The acoustic calculation methodology consists of characterizing the wheel using finite element techniques and the track using periodic structure theory. The influence of the track properties on the sound radiation is analysed by means of statistical techniques applied to the acoustic power results of different track configurations. To achieve this, the rail cross-section geometry is parameterized and numerous simulations are carried out by modifying these geometric parameters and the viscoelastic properties of the track components. Considering the contribution of the wheel, rail and sleeper, the results obtained indicate that the total radiation can be reduced by up to 7.4 dB(A) through an optimal combination of the track design parameters, compared to the worst combination found. In particular, the rail pad stiffness is shown to be the most influential parameter in the sound radiation.
design of experiments, noise mitigation, railway dynamics, rolling noise, sound radiation model, track influence, wheel/rail interaction
0022-460X
Andres, Victor Tomas
cf385376-63ec-4453-8b01-3316553f0cfc
Martinez-Casas, J.
4d46f4fd-bf59-4630-9821-968bd19fb6b9
Denia, F. D.
9aa9b551-f2de-4311-928d-fb6e0548c665
Thompson, David
bca37fd3-d692-4779-b663-5916b01edae5
Andres, Victor Tomas
cf385376-63ec-4453-8b01-3316553f0cfc
Martinez-Casas, J.
4d46f4fd-bf59-4630-9821-968bd19fb6b9
Denia, F. D.
9aa9b551-f2de-4311-928d-fb6e0548c665
Thompson, David
bca37fd3-d692-4779-b663-5916b01edae5

Andres, Victor Tomas, Martinez-Casas, J., Denia, F. D. and Thompson, David (2022) Influence study of rail geometry and track properties on railway rolling noise. Journal of Sound and Vibration, 525, [116701]. (doi:10.1016/j.jsv.2021.116701).

Record type: Article

Abstract

Wheel/rail interaction generates an excitation due to the roughness present on the surface of both components that produces vibration and consequently rolling noise. In this work, the railway track properties that most influence rolling noise are identified and this influence is analysed to reduce noise emission. The acoustic calculation methodology consists of characterizing the wheel using finite element techniques and the track using periodic structure theory. The influence of the track properties on the sound radiation is analysed by means of statistical techniques applied to the acoustic power results of different track configurations. To achieve this, the rail cross-section geometry is parameterized and numerous simulations are carried out by modifying these geometric parameters and the viscoelastic properties of the track components. Considering the contribution of the wheel, rail and sleeper, the results obtained indicate that the total radiation can be reduced by up to 7.4 dB(A) through an optimal combination of the track design parameters, compared to the worst combination found. In particular, the rail pad stiffness is shown to be the most influential parameter in the sound radiation.

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Influence study of rail geometry and track properties on railway rolling noise - Accepted Manuscript
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Accepted/In Press date: 14 December 2021
e-pub ahead of print date: 12 January 2022
Published date: 12 May 2022
Keywords: design of experiments, noise mitigation, railway dynamics, rolling noise, sound radiation model, track influence, wheel/rail interaction

Identifiers

Local EPrints ID: 455425
URI: http://eprints.soton.ac.uk/id/eprint/455425
ISSN: 0022-460X
PURE UUID: 511e3142-eb8c-4f30-a8a8-08018701b511
ORCID for David Thompson: ORCID iD orcid.org/0000-0002-7964-5906

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Date deposited: 21 Mar 2022 17:50
Last modified: 28 Apr 2022 01:41

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Contributors

Author: Victor Tomas Andres
Author: J. Martinez-Casas
Author: F. D. Denia
Author: David Thompson ORCID iD

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