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Calculation of the crosswind displacement of pantographs

Bouferrouk, Abdessalem; Baker, Chris; Sterling, Mark; O'Neil, Hugh; Wood, Stephen

Authors

Chris Baker

Mark Sterling

Hugh O'Neil

Stephen Wood



Abstract

The static crosswind displacements of a high speed pantograph and contact wire are studied. The aim is to assess the overall pantograph sway in crosswinds based on the relative movements of the pantograph and contact wire, taking into account the crosswind deflection of the train body. The pantograph and wire deflections are derived from simplified models of such structures, whereas train body displacements are computed via Vampire. A spectral approach is used to simulate the turbulent crosswind, which is then used with aerodynamic admittance function to obtain unsteady crosswind loading. Analysis of data shows negligible crosswind deflections of the pantograph itself in the range of few millimeters, but train body and wire deflections are much larger. It is shown that crosswinds may cause the pantograph sway to exceed prescribed limits for some combinations of wind gust and track conditions.

Citation

Bouferrouk, A., Baker, C., Sterling, M., O'Neil, H., & Wood, S. (2008, July). Calculation of the crosswind displacement of pantographs. Paper presented at BBAA VI International Colloquium on Bluff Bodies Aerodynamics & Applications, Milano, Italy

Presentation Conference Type Conference Paper (unpublished)
Conference Name BBAA VI International Colloquium on Bluff Bodies Aerodynamics & Applications
Conference Location Milano, Italy
Start Date Jul 20, 2008
End Date Jul 24, 2008
Publication Date Jul 20, 2008
Deposit Date Jan 21, 2015
Peer Reviewed Peer Reviewed
Keywords crosswind displacement, pantographs
Public URL https://uwe-repository.worktribe.com/output/1010744
Publisher URL http://bbaa6.mecc.polimi.it/papers.html#papers
Additional Information Title of Conference or Conference Proceedings : BBAA VI International Colloquium on Bluff Bodies Aerodynamics & Applications