A component very specific to railway systems and vibration sensitive - especially with increasing speed - is pantographs. Resulting from a non-constant stiffness along the catenary, a vertical vibration of the pantograph and thus a variation in the contact force between the collector head and the overhead wire is induced. Field tests showed, that at train speeds above 300 kph further damping is required allowing trains to be run is significantly depending on railway requirements. Modelling of the dynamic behaviour of the pantograph was successfully performed using a Newton-Euler method, allowing to also account for the geometry of the system considered. Feasibility of adaptively damping these vibrations using piezoelectric actuation and leverage devices was then proven in a full-scale laboratory test using a DSA 350S high speed pantograph running on the German high speed train ICE 1. A reduction of 50percent in stroke amplitude was achieved.
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