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Validation of a prediction model for tangent rail roughness and noise growth

Validation of a prediction model for tangent rail roughness and noise growth
Validation of a prediction model for tangent rail roughness and noise growth
Railways can inevitably cause railway rolling noise, which is induced by both wheel and rail roughness. Due to the deformation and wear between the wheel/rail at the contact patch, the rail roughness may grow in amplitude after a number of wheelset passages. This results in increasing railway rolling noise. Rail roughness is a common aspect in all transit systems and much research has been pursued to predict and mitigate its growth on track but prediction of resultant noise growth has not been a focus. This paper provides the experimental validation of the modified Railway Rolling Noise Prediction Software (RRNPS) model for the prediction of rail roughness growth and corresponding noise growth. The model is a new framework to enable noise growth predictions due to rail roughness growth mechanics. It is validated by means of several experiments that have been performed along a straight railway line. Through comparisons between predictions and measurements, it is shown that the RRNPS model gives reliable predictions on rail roughness growth and corresponding noise growth. Subsequently this model is used to predict how speed, normal force, wheelset traffic and ballast vertical stiffness affect rail roughness growth and corresponding noise growth.
roughness growth, railway rolling noise, speed, normal force, wheelset traffic
0043-1648
261-272
Jiang, S.
3f5ff968-f1e9-40ac-9495-3f0cd9b0cd79
Meehan, P.A.
3004f4f0-edca-4032-b6de-b6e6fb436b5d
Bellette, P.A.
802cbc9c-d55e-4923-a8d1-2493fdf3355d
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301
Jiang, S.
3f5ff968-f1e9-40ac-9495-3f0cd9b0cd79
Meehan, P.A.
3004f4f0-edca-4032-b6de-b6e6fb436b5d
Bellette, P.A.
802cbc9c-d55e-4923-a8d1-2493fdf3355d
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301

Jiang, S., Meehan, P.A., Bellette, P.A., Thompson, D.J. and Jones, C.J.C. (2014) Validation of a prediction model for tangent rail roughness and noise growth. Wear, 314 (1), 261-272. (doi:10.1016/j.wear.2013.11.038).

Record type: Article

Abstract

Railways can inevitably cause railway rolling noise, which is induced by both wheel and rail roughness. Due to the deformation and wear between the wheel/rail at the contact patch, the rail roughness may grow in amplitude after a number of wheelset passages. This results in increasing railway rolling noise. Rail roughness is a common aspect in all transit systems and much research has been pursued to predict and mitigate its growth on track but prediction of resultant noise growth has not been a focus. This paper provides the experimental validation of the modified Railway Rolling Noise Prediction Software (RRNPS) model for the prediction of rail roughness growth and corresponding noise growth. The model is a new framework to enable noise growth predictions due to rail roughness growth mechanics. It is validated by means of several experiments that have been performed along a straight railway line. Through comparisons between predictions and measurements, it is shown that the RRNPS model gives reliable predictions on rail roughness growth and corresponding noise growth. Subsequently this model is used to predict how speed, normal force, wheelset traffic and ballast vertical stiffness affect rail roughness growth and corresponding noise growth.

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More information

Accepted/In Press date: 24 November 2013
e-pub ahead of print date: 1 December 2013
Published date: 2014
Keywords: roughness growth, railway rolling noise, speed, normal force, wheelset traffic
Organisations: Dynamics Group

Identifiers

Local EPrints ID: 381752
URI: https://eprints.soton.ac.uk/id/eprint/381752
ISSN: 0043-1648
PURE UUID: 7c6bbe36-4e15-49f1-85e8-c7f09f7da06d
ORCID for D.J. Thompson: ORCID iD orcid.org/0000-0002-7964-5906

Catalogue record

Date deposited: 13 Oct 2015 13:54
Last modified: 20 Jul 2019 01:16

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Contributors

Author: S. Jiang
Author: P.A. Meehan
Author: P.A. Bellette
Author: D.J. Thompson ORCID iD
Author: C.J.C. Jones

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