The ballast pick-up problem. A theoretical approach and two experimental campaigns

Navarro Medina, Fermín; Sanz Andres, Angel Pedro; Pérez Grande, María Isabel; Martínez Muelas, Alejandro; Vega Ramiro, Enrique; Rodriguez Plaza, Miguel; Iglesias Dia, Ignacio Jorge; Andres Alguacil, Alvaro y Alonso Gimeno, Diana (2011). The ballast pick-up problem. A theoretical approach and two experimental campaigns. En: "13th International Conference on Wind Engineering", 10/07/2011 - 15/07/2011, Amsterdand, Paises Bajos.

Descripción

Título: The ballast pick-up problem. A theoretical approach and two experimental campaigns
Autor/es:
  • Navarro Medina, Fermín
  • Sanz Andres, Angel Pedro
  • Pérez Grande, María Isabel
  • Martínez Muelas, Alejandro
  • Vega Ramiro, Enrique
  • Rodriguez Plaza, Miguel
  • Iglesias Dia, Ignacio Jorge
  • Andres Alguacil, Alvaro
  • Alonso Gimeno, Diana
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 13th International Conference on Wind Engineering
Fechas del Evento: 10/07/2011 - 15/07/2011
Lugar del Evento: Amsterdand, Paises Bajos
Título del Libro: Proceedings of 13th International Conference on Wind Engineering
Fecha: 2011
Materias:
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

The aim of this contribution is to present a theoretical approach and two experimental campaigns (on wind tunnel and on the track) concerning the research work about the ballast train-induced-wind erosion (BTIWE) phenomenon. When a high speed train overpasses the critical speed, it produces a wind speed close to the track large enough to start the motion of the ballast elements, eventually leading to the rolling of the stones (Kwon and Park, 2006) and, if these stones get enough energy, they can jump and then initiate a saltation-like chain reaction, as found in the saltation processes of soil eolian erosion (Bagnold, 1941). The expelled stones can reach a height which is larger than the lowest parts of the train, striking them (and the track surroundings) producing considerable damage that should be avoided. There is not much published work about this phenomenon, in spite of the great interest that exists due to its relevant applications in increasing the maximum operative train speed. Particularly, the initiation of flight of ballast due to the pass of a high speed train has been studied by Kwon and Park (2006) by performing field and wind tunnel experiments.

Más información

ID de Registro: 12638
Identificador DC: http://oa.upm.es/12638/
Identificador OAI: oai:oa.upm.es:12638
URL Oficial: http://www.icwe13.org/
Depositado por: Memoria Investigacion
Depositado el: 06 Ago 2012 07:51
Ultima Modificación: 21 Abr 2016 11:54
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