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The introduction of falling friction coefficients into curving calculations for studying curve squeal noise

The introduction of falling friction coefficients into curving calculations for studying curve squeal noise
The introduction of falling friction coefficients into curving calculations for studying curve squeal noise
In this paper, a method of introducing falling friction coefficients into curving simulations for studying curve squeal noise is presented. Generation of squeal at the wheel of a railway vehicle in a curve is caused by unstable vibration, caused in turn by a lateral wheel/rail force which reduces with increasing lateral creepage. To model vehicle curve squeal, the wheel/rail tangential force in the curving simulation is calculated by a modified version of FASTSIM, which uses a sliding velocity-dependent friction characteristic. Using the falling friction characteristics, a UK passenger vehicle is modelled with SIMPACK. Curving behaviour is simulated for a range of curve radii and cant deficiencies. The wheel/rail contact properties are then obtained to study the possibility of the occurrence of squeal using a frequency-domain method. The methodology in this paper allows various curves, wheel/rail profiles, vehicle speeds and friction characteristics to be taken into account.
squeal noise, curving behaviour, falling friction, contact
0042-3114
261-271
Xie, G.
42847e46-af2a-492d-9436-8d932dfbc8de
Allen, P.D.
5cddbb72-216d-4e5a-94eb-72986df493f3
Iwnicki, S.D.
30eeb400-00df-462b-8d3e-63f48e648ac3
Alonso, A.
1939498b-2ed5-4f86-8ce8-e0f9974880e1
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301
Huang, Z.Y.
2895deda-7290-43b6-bf3c-3ebb118696dd
Xie, G.
42847e46-af2a-492d-9436-8d932dfbc8de
Allen, P.D.
5cddbb72-216d-4e5a-94eb-72986df493f3
Iwnicki, S.D.
30eeb400-00df-462b-8d3e-63f48e648ac3
Alonso, A.
1939498b-2ed5-4f86-8ce8-e0f9974880e1
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301
Huang, Z.Y.
2895deda-7290-43b6-bf3c-3ebb118696dd

Xie, G., Allen, P.D., Iwnicki, S.D., Alonso, A., Thompson, D.J., Jones, C.J.C. and Huang, Z.Y. (2006) The introduction of falling friction coefficients into curving calculations for studying curve squeal noise. Vehicle System Dynamics, 44 (1, Supplement 1), 261-271. (doi:10.1080/00423110600870428).

Record type: Article

Abstract

In this paper, a method of introducing falling friction coefficients into curving simulations for studying curve squeal noise is presented. Generation of squeal at the wheel of a railway vehicle in a curve is caused by unstable vibration, caused in turn by a lateral wheel/rail force which reduces with increasing lateral creepage. To model vehicle curve squeal, the wheel/rail tangential force in the curving simulation is calculated by a modified version of FASTSIM, which uses a sliding velocity-dependent friction characteristic. Using the falling friction characteristics, a UK passenger vehicle is modelled with SIMPACK. Curving behaviour is simulated for a range of curve radii and cant deficiencies. The wheel/rail contact properties are then obtained to study the possibility of the occurrence of squeal using a frequency-domain method. The methodology in this paper allows various curves, wheel/rail profiles, vehicle speeds and friction characteristics to be taken into account.

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More information

Published date: January 2006
Keywords: squeal noise, curving behaviour, falling friction, contact

Identifiers

Local EPrints ID: 49588
URI: http://eprints.soton.ac.uk/id/eprint/49588
ISSN: 0042-3114
PURE UUID: fbb099f0-f8aa-4805-9768-2f3130b02cf7
ORCID for D.J. Thompson: ORCID iD orcid.org/0000-0002-7964-5906

Catalogue record

Date deposited: 20 Nov 2007
Last modified: 16 Mar 2024 02:54

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Contributors

Author: G. Xie
Author: P.D. Allen
Author: S.D. Iwnicki
Author: A. Alonso
Author: D.J. Thompson ORCID iD
Author: C.J.C. Jones
Author: Z.Y. Huang

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