Fatigue analysis of catenary contact wires for high speed trains
Communication avec acte
The fatigue fracture is one of the most critical failures which may occur on the high speed network because it is undetectable and it has a huge impact on traffic disruption. The contact wire lifespan of a high speed line is estimated at more than 50 years and thus it is necessary to consider the risk of fatigue. The Railway Technical Research Institute in Japan studied this phenomenon for a long time and performed experimental tests. Using these results and by comparing with failures occurred in France, a preliminary analysis is carried out to identify parameters which significantly influence the fatigue phenomenon. This analysis consists in using the numerical software OSCAR© to evaluate the loads, perform a fatigue assessment of the contact wire. The procedure, using a one-dimensional and a three-dimensional model, is described in this article.
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Pantograph catenary dynamic optimisation based on advanced multibody and finite element co-simulation tools Communication avec acteLAURENT, Christophe; MASSAT, Jean-Pierre; NGUYEN TAJAN, T.M.L.; BIANCHI, Jean-Philippe; BALMES, Etienne (2013)This paper presents recent developments undertaken by the SNCF Innovation & Research Department on numerical modelling of pantograph catenary interaction. It aims at describing an efficient co-simulation process between ...
Communication avec acteMASSAT, Jean-Pierre; BALMES, Etienne; BIANCHI, Jean-Philippe (Civil-Comp Press, 2016)Fatigue cracks can induce fracture of the catenary Contact Wire (CW) and thus huge costs for the operator. Nowadays the wear criterion to replace the CW leads to lifespan over than 50 years, and the catenary can see a very ...
Pantograph catenary dynamic optimisation based on advanced multibody and finite element co-simulation tools Article dans une revue avec comité de lectureMASSAT, Jean-Pierre; LAURENT, Christophe; BIANCHI, Jean-Philippe; BALMES, Etienne (Taylor & Francis, 2014)This paper presents recent developments undertaken by SNCF Innovation & Research Department on numerical modelling of pantograph catenary interaction. It aims at describing an efficient co-simulation process between Finite ...
Article dans une revue avec comité de lectureMASSAT, Jean-Pierre; BALMES, Etienne; BIANCHI, Jean-Philippe; VAN KALSBEEK, Guido (Taylor & Francis, 2015)OSCAR (Outil de Simulation du CAptage pour la Reconnaissance des défauts) is the pantograph–catenary dynamic software developed by Société Nationale des Chemins de fer Français (SNCF) since 2004. A three-dimensional finite ...
Communication avec acteVO VAN, Olivier; MASSAT, Jean-Pierre; LAURENT, Christophe; BALMES, Etienne (IAVSD, 2013)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 ...