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Modelling of floating-slab tracks with continuous slabs under oscillating moving loads

Modelling of floating-slab tracks with continuous slabs under oscillating moving loads
Modelling of floating-slab tracks with continuous slabs under oscillating moving loads
This paper discusses modelling of floating-slab tracks on rigid foundations. The model consists of an upper Euler–Bernoulli beam to account for both the rails and a lower Euler–Bernoulli beam to account for the slab. There are two continuous resilient layers in the model: one to account for railpads between the rails and the slab and one to account for slab-bearings underneath the slab. The Fourier transformation method is used to calculate displacements of such a track under an oscillating moving load. These results are used to calculate the cut-on frequencies and critical velocity of the track. The work in this paper also demonstrates some basic concepts in the context of vibration of infinite systems including dispersion curves, critical velocities, load-velocity lines and coupling of systems in the wavenumber-frequency domain. The paper offers a complete treatment of the issues important to the analysis of a double-beam system not elsewhere available in the published literature.
0022-460X
37-54
Hussein, M.F.M.
3535c131-1710-4edc-a4a1-8fe67dee3f67
Hunt, H.E.M.
00743f03-05d5-4a74-bd25-96cd0679f808
Hussein, M.F.M.
3535c131-1710-4edc-a4a1-8fe67dee3f67
Hunt, H.E.M.
00743f03-05d5-4a74-bd25-96cd0679f808

Hussein, M.F.M. and Hunt, H.E.M. (2006) Modelling of floating-slab tracks with continuous slabs under oscillating moving loads. Journal of Sound and Vibration, 297 (1-2), 37-54. (doi:10.1016/j.jsv.2006.03.026).

Record type: Article

Abstract

This paper discusses modelling of floating-slab tracks on rigid foundations. The model consists of an upper Euler–Bernoulli beam to account for both the rails and a lower Euler–Bernoulli beam to account for the slab. There are two continuous resilient layers in the model: one to account for railpads between the rails and the slab and one to account for slab-bearings underneath the slab. The Fourier transformation method is used to calculate displacements of such a track under an oscillating moving load. These results are used to calculate the cut-on frequencies and critical velocity of the track. The work in this paper also demonstrates some basic concepts in the context of vibration of infinite systems including dispersion curves, critical velocities, load-velocity lines and coupling of systems in the wavenumber-frequency domain. The paper offers a complete treatment of the issues important to the analysis of a double-beam system not elsewhere available in the published literature.

Full text not available from this repository.

More information

Published date: 24 October 2006
Organisations: Dynamics Group

Identifiers

Local EPrints ID: 354579
URI: https://eprints.soton.ac.uk/id/eprint/354579
ISSN: 0022-460X
PURE UUID: 9c425a9d-d817-481b-a902-4a0673d4aa3e

Catalogue record

Date deposited: 22 Oct 2013 11:09
Last modified: 16 Jul 2019 21:28

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