A simplified approach to determine aerodynamic damping of railway overheads

Avila Sanchez, Sergio and López García, Oscar and Meseguer Ruiz, José (2011). A simplified approach to determine aerodynamic damping of railway overheads. In: "13th International Conference on Wind Engineering", 05/07/2011 - 10/07/2011, Amsterdam, Holanda.

Description

Title: A simplified approach to determine aerodynamic damping of railway overheads
Author/s:
  • Avila Sanchez, Sergio
  • López García, Oscar
  • Meseguer Ruiz, José
Item Type: Presentation at Congress or Conference (Article)
Event Title: 13th International Conference on Wind Engineering
Event Dates: 05/07/2011 - 10/07/2011
Event Location: Amsterdam, Holanda
Title of Book: Proceedings of the 13th International Conference on Wind Engineering
Date: 2011
Subjects:
Faculty: E.U.I.T. Aeronáutica (UPM)
Department: Vehículos Aeroespaciales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The railway overhead (or catenary) is the system of cables responsible for providing electric current to the train. This system has been reported as wind-sensitive (Scanlon et al., 2000), and particularly to the occurrence of galloping phenomena. Galloping phenomena of the railway overhead consists of undamped cable oscillations triggered by aerodynamic forces acting on the contact wire. As is well known, aerodynamic loads on the contact wire depends on the incident flow mean velocity and the angle of attack. The presence of embankments or hills modifies both vertical velocities profiles and angles of attack of the flow (Paiva et al., 2009). The presence of these cross-wind related oscillations can interfere with the safe operation of the railway service (Johnson, 1996). Therefore a correct modelling of the phenomena is required to avoid these unwanted oscillations.

More information

Item ID: 11439
DC Identifier: http://oa.upm.es/11439/
OAI Identifier: oai:oa.upm.es:11439
Official URL: http://folk.ntnu.no/karpa/ICWE%2013/ICWE13%20Proceedings/start/index.html
Deposited by: Memoria Investigacion
Deposited on: 26 Jul 2012 12:42
Last Modified: 20 Apr 2016 19:30
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