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Dynamic analysis and performance of a repoint track switch

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journal contribution
posted on 2019-04-10, 08:43 authored by Y. Bezin, Maria Sarmiento-Carnevali, M.Sh. Sichani, S. Neves, D. Kostovasilis, Sam Bemment, Tim HarrisonTim Harrison, Christopher Ward, Roger Dixon
Repoint is an alternative concept for the design of track switches developed at Loughborough University. The concept, based around a stub switch, offers several improvements over current designs. Through a novel locking arrangement, it allows parallel, multi-channel actuation and passive locking functions, providing a high degree of fault tolerance. The aim of the work presented in this paper is to evaluate the dynamic interaction forces due to the passage of rolling stock over the switch and, particularly, the area of the stub rail ends, in comparison to a conventional switch. Specific behaviour and load transfer conditions from one rail to the other at the joint are analysed, as well as long term wear conditions of the rails. These evaluations are undertaken by means of multi-body dynamic simulations, leading to design refinement of the stub rail ends and the identification of further research and development requirements in their design.

Funding

The team at Huddersfield would like to thank VI-Grade GmbH for their support in using the wear analysis toolkit of VI-Rail software. The Loughborough University Team would like to acknowledge the support of the Rail Safety and Standards Board - UK (RSSB), Future Railway, Transport for London (TfL), Network Rail (NR) and to EPSRC for funding the work.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Vehicle System Dynamics

Volume

58

Issue

6

Pages

843-863

Citation

BEZIN, Y. ... et al, 2019. Dynamic analysis and performance of a repoint track switch. Vehicle System Dynamics, 58(6), pp. 843-863.

Publisher

© Taylor & Francis

Version

  • AM (Accepted Manuscript)

Publisher statement

This is an Accepted Manuscript of an article published by Taylor & Francis in Vehicle System Dynamics on 9 May 2019, available online: http://www.tandfonline.com/10.1080/00423114.2019.1612925.

Acceptance date

2019-03-09

Publication date

2019-05-09

ISSN

0042-3114

eISSN

1744-5159

Language

  • en