Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads

Avila Sanchez, Sergio; López García, Oscar y Meseguer Ruiz, José (2010). Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads. En: "Joint Rail Conference JRC2010", 27/04/2010 - 29/04/2010, Urbana, EEUU. ISBN 978-0-7918-4907-1. https://doi.org/10.1115/JRC2010-36207.

Descripción

Título: Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads
Autor/es:
  • Avila Sanchez, Sergio
  • López García, Oscar
  • Meseguer Ruiz, José
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Joint Rail Conference JRC2010
Fechas del Evento: 27/04/2010 - 29/04/2010
Lugar del Evento: Urbana, EEUU
Título del Libro: Proceedings of the Joint Rail Conference, JRC2010
Fecha: 2010
ISBN: 978-0-7918-4907-1
Volumen: 2
Materias:
Palabras Clave Informales: catenary instabilities, wind tunnel tests, train aerodynamics
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Vehículos Aeroespaciales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Winds as an environmental factor can cause significant difficulties for the railway system operation. The railway overhead has been particularly vulnerable to cross-winds related problems, such as development of undamped oscillations due to galloping phenomenon. The installation of windbreaks to decrease the aerodynamic loads on the train can affect the loads on railway overheads triggering cable galloping. One essential parameter to indicate the influence of the parapet wake on the catenary contact wire is the turbulence intensity. In this paper the results of an experimental analysis of the turbulence intensity due to the presence of parapets carried out in a wind tunnel are reported. Embankments equipped with different parapets have been tested and turbulence intensity has been measured at both contact wire locations, windward and leeward. The relative influence of the parapets is measured through a reduced turbulence intensity, defined as the ratio between the turbulence intensity measured with parapet and the turbulence intensity in the case without any parapet on the embankment. In general the reduced turbulence intensity increases as the height of the parapet increases.

Más información

ID de Registro: 6949
Identificador DC: http://oa.upm.es/6949/
Identificador OAI: oai:oa.upm.es:6949
Identificador DOI: 10.1115/JRC2010-36207
Depositado por: Memoria Investigacion
Depositado el: 10 May 2011 08:47
Ultima Modificación: 20 Abr 2016 16:03
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