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A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary

A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary
A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary
In this paper we propose a method of finding the initial equilibrium configuration of cable structures discretized by finite elements applied to the shape-finding of the railway overhead system. Absolute nodal coordinate formulation finite elements, which allow for axial and bending deformation, are used for the contact and messenger wires. The other parts of the overhead system are discretized with non-linear bars or equivalent springs. The proposed method considers the constraints introduced during the assembly of the catenary, such as the position of droppers, cable tension, and height of the contact wire. The formulation is general and can be applied to different catenary configurations or transitions both in 2D and 3D with straight or curved track paths. A comparison of the results obtained for reference catenaries in the bibliography is also included.
0141-0296
234-243
Tur, M.
df9c0c18-29a0-405b-8105-ebf2972d63a3
García, E.
69bca721-f32b-43d9-8b32-6d0db1db475d
Baeza, L.
09dc5565-ad4b-49af-a104-d4b6ad28e1b0
Fuenmayor, F.J.
452423ef-ca4b-4004-8ece-9e3dd0ca886e
Tur, M.
df9c0c18-29a0-405b-8105-ebf2972d63a3
García, E.
69bca721-f32b-43d9-8b32-6d0db1db475d
Baeza, L.
09dc5565-ad4b-49af-a104-d4b6ad28e1b0
Fuenmayor, F.J.
452423ef-ca4b-4004-8ece-9e3dd0ca886e

Tur, M., García, E., Baeza, L. and Fuenmayor, F.J. (2014) A 3D absolute nodal coordinate finite element model to compute the initial configuration of a railway catenary. Engineering Structures, 71, 234-243. (doi:10.1016/j.engstruct.2014.04.015).

Record type: Article

Abstract

In this paper we propose a method of finding the initial equilibrium configuration of cable structures discretized by finite elements applied to the shape-finding of the railway overhead system. Absolute nodal coordinate formulation finite elements, which allow for axial and bending deformation, are used for the contact and messenger wires. The other parts of the overhead system are discretized with non-linear bars or equivalent springs. The proposed method considers the constraints introduced during the assembly of the catenary, such as the position of droppers, cable tension, and height of the contact wire. The formulation is general and can be applied to different catenary configurations or transitions both in 2D and 3D with straight or curved track paths. A comparison of the results obtained for reference catenaries in the bibliography is also included.

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More information

Accepted/In Press date: 7 April 2014
e-pub ahead of print date: 6 May 2014
Published date: 2014
Additional Information: cited By 14
Organisations: Dynamics Group

Identifiers

Local EPrints ID: 411227
URI: https://eprints.soton.ac.uk/id/eprint/411227
ISSN: 0141-0296
PURE UUID: 4a993806-8ad6-48d8-92dc-36a4336ce12a
ORCID for L. Baeza: ORCID iD orcid.org/0000-0002-3815-8706

Catalogue record

Date deposited: 15 Jun 2017 16:32
Last modified: 17 Sep 2019 00:28

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