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Introduction of variability into pantograph–catenary dynamic simulations

Article dans une revue avec comité de lecture
Author
VO VAN, Olivier
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
MASSAT, Jean-Pierre
28989 Département recherche et développements [R&D - SNCF]
LAURENT, Christophe
259946 Vibrateam
BALMES, Etienne
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/9224
DOI
10.1080/00423114.2014.922199
Date
2014
Journal
Vehicle System Dynamics

Abstract

Currently, pantograph-catenary dynamic simulations are mainly based on deterministic approaches. However, the contact force between catenary and pantograph depends on many key parameters that are not always quantified precisely and can vary in time and space. To get a better chance of addressing extreme or combined critical conditions, methodologies to consider variability are thus necessary. Aerodynamic forces and geometrical irregularities of catenaries are thought to be significant sources of variability in measurement and this paper proposes methods to take them into account. Results are compared with measurements to correlate the effect of the considered parameters with experimentally observed variability. Finally, a virtual certification example is shown, with a study of the influence of speed on the impact of variability.

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