Safety assessment of underground vehicles passing over highly resilient curved tracks in the presence of a broken rail

Suárez Esteban, Berta and Rodríguez, Pablo and Vázquez, Manuel and Fernández, Ignacio (2012). Safety assessment of underground vehicles passing over highly resilient curved tracks in the presence of a broken rail. "Vehicle System Dynamics", v. 50 (n. 1); pp. 59-78. ISSN 0042-3114. https://doi.org/10.1080/00423114.2011.563859.

Description

Title: Safety assessment of underground vehicles passing over highly resilient curved tracks in the presence of a broken rail
Author/s:
  • Suárez Esteban, Berta
  • Rodríguez, Pablo
  • Vázquez, Manuel
  • Fernández, Ignacio
Item Type: Article
Título de Revista/Publicación: Vehicle System Dynamics
Date: January 2012
ISSN: 0042-3114
Volume: 50
Subjects:
Freetext Keywords: slab track, resilient track, curved track, block spacing, broken rail, derailment risk
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica y de Fabricación [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Vehicle–track interaction for a new resilient slab track designed to reduce noise and vibration levels was analysed, in order to assess the derailment risk on a curved track when encountering a broken rail. Sensitivity of the rail support spacing of the relative position of the rail breakage between two adjacent rail supports and of running speed were analysed for two different elasticities of the rail fastening system. In none of the cases analysed was observed an appreciable difference between either of the elastic systems. As was expected, the most unfavourable situations were those with greater rail support spacing and those with greater distance from the breakage to the nearest rail support, although in none of the simulations performed did a derailment occur when running over the broken rail. When varying the running speed, the most favourable condition was obtained for an intermediate speed, due to the superposition of two antagonistic effects.

More information

Item ID: 12678
DC Identifier: http://oa.upm.es/12678/
OAI Identifier: oai:oa.upm.es:12678
DOI: 10.1080/00423114.2011.563859
Official URL: http://www.tandfonline.com/doi/abs/10.1080/00423114.2011.563859
Deposited by: Berta Suárez Esteban
Deposited on: 03 Sep 2012 09:33
Last Modified: 21 Apr 2016 11:57
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