Responses of infinite periodic structures to moving or stationary harmonic loads
Responses of infinite periodic structures to moving or stationary harmonic loads
Formulae are derived for the computation of the response of periodically supported structures subject to a moving or stationary harmonic load. They are expressed in terms of an integral over the wavenumber in the longitudinal direction. The structures may be described using either a multiple-beam model, or more generally, a two-and-half-dimensional finite-element model. The supports, described by a receptance matrix, may have arbitrary degrees of freedom, either translational or rotational. Equations for free vibration propagation constants are yielded straightforwardly. Results are produced for a conventional ballasted track, showing the effects of the load speed and the modelling of the supports.
125-149
Sheng, X.
1d5fc91c-24df-4515-9c3c-40dfbc903db3
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
2005
Sheng, X.
1d5fc91c-24df-4515-9c3c-40dfbc903db3
Jones, C.J.C.
695ac86c-2915-420c-ac72-3a86f98d3301
Thompson, D.J.
bca37fd3-d692-4779-b663-5916b01edae5
Sheng, X., Jones, C.J.C. and Thompson, D.J.
(2005)
Responses of infinite periodic structures to moving or stationary harmonic loads.
Journal of Sound and Vibration, 282 (1-2), .
(doi:10.1016/j.jsv.2004.02.050).
Abstract
Formulae are derived for the computation of the response of periodically supported structures subject to a moving or stationary harmonic load. They are expressed in terms of an integral over the wavenumber in the longitudinal direction. The structures may be described using either a multiple-beam model, or more generally, a two-and-half-dimensional finite-element model. The supports, described by a receptance matrix, may have arbitrary degrees of freedom, either translational or rotational. Equations for free vibration propagation constants are yielded straightforwardly. Results are produced for a conventional ballasted track, showing the effects of the load speed and the modelling of the supports.
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Published date: 2005
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Local EPrints ID: 37533
URI: http://eprints.soton.ac.uk/id/eprint/37533
ISSN: 0022-460X
PURE UUID: 8888d9fd-b96c-4a22-a8ee-f851930e353c
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Date deposited: 23 May 2006
Last modified: 16 Mar 2024 02:54
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Author:
X. Sheng
Author:
C.J.C. Jones
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