Abstract
The paper addresses dynamic interaction in the pantograph–catenary system present in a rail vehicle. The contact force, which is measured between pantograph and catenary, may significantly fluctuate during ride due to nonlinear properties of the entire system. This may cause unexpected drops of the current flow efficiency and further power decreases. Following the relevant significance of the addressed issue, the authors performed an analysis of the influence of suspension properties of the critical pantograph’s passive components on the improvement of electric current collection on a train. The analysis was performed based on a co-simulation model for the pantograph–catenary interaction elaborated by the authors. The Finite Element catenary model assumes nonlinear droppers, large displacements and contact with the pantograph slider. To overcome limits of widely used lumped parameters model of the pantograph, the relatively more realistic Multibody model was considered. Reported in other works, the use of Multibody models, in which all properties of pantograph keep physical sense, provide wide range of design improvements for better current collection. By using the adapted model, the ability of implementation additional dampers in a pantograph structure for improvement of contact quality was investigated. Utilized pantograph model takes into account friction forces, suspension springs and aerodynamic effects. Presented results proof the ability to effectively improve current collection merely by adjusting pantograph’s passive components.
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Acknowledgements
The work was supported by the AGH Grant no. 15.11.130.627 and carried out employing the infrastructure of the Centre of Energy AGH (Czarnowiejska 36, 30–054 Kraków, Poland).
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Zdziebko, P., Martowicz, A., Uhl, T. (2018). Influence of the Mechanical Properties of Pantograph Structural Parts on Its Interaction with a Catenary. In: Awrejcewicz, J. (eds) Dynamical Systems in Applications. DSTA 2017. Springer Proceedings in Mathematics & Statistics, vol 249. Springer, Cham. https://doi.org/10.1007/978-3-319-96601-4_34
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DOI: https://doi.org/10.1007/978-3-319-96601-4_34
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