Introduction of variability in pantograph-catenary dynamic simulations

Olivier Vo Van (1) , Jean Pierre Massat (2) , Christophe Laurent (3) , Etienne Balmès (1)

1 PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux
2 R&D - SNCF - Département recherche et développements
3 Vibrateam

Currently, pantograph-catenary dynamic simulations codes 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. To get a better chance of addressing extreme or combinations of 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 see the importance of the considered parameters with respect to global variability observed in measurements.

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]

Olivier Vo Van, Jean Pierre Massat, Christophe Laurent, Etienne Balmès. Introduction of variability in pantograph-catenary dynamic simulations. IAVSD Vehicles on Road and Tracks 2013, Aug 2013, China. pp.1-8. ⟨hal-01001855⟩