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Original Articles

A mathematical model of the static pantograph/catenary interaction

, , , , &
Pages 333-340 | Received 12 Sep 2007, Accepted 18 Feb 2008, Published online: 05 Dec 2008
 

Abstract

In this paper, we present a mathematical model of the static pantograph/catenary interaction for high-speed railways, with an outline of the development of a computing algorithm which can be used to obtain the solution of the static equilibrium equation of the pantograph/catenary system which has been reached after an exhaustive study of the traditional mechanical approach based on a set of coupled strings. In order to obtain favourable behaviour in the pantograph/catenary system, it is necessary to obtain adequate conditions in the line; thus we need a precise mechanical calculus. The resulting stiffness matrix shows a high degree of sparsity. Hence, this result can be interpreted in two ways: less memory storage requirements as well as the use of suitable methods to solve the static equilibrium equation as projection methods.

Acknowledgements

This work was supported by the Castilla-La Mancha project JCCM-PCI-05-019.

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