Responses of infinite periodic structures to moving or stationary harmonic loads
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), 125-149. (doi:10.1016/j.jsv.2004.02.050).
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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.
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Dynamics
University Structure - Pre August 2011 > Institute of Sound and Vibration Research
|Date Deposited:||23 May 2006|
|Last Modified:||27 Mar 2014 18:23|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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