Abstract
Electromagnetic track brakes in commuter and main-line trains work independently of the wheel-rail contact. Therefore, they play an important role especially in low adhesion conditions. Today’s demands on braking performance require that track brakes stay active until the train comes to a full stop. Measurements during field tests have shown that under these conditions severe self-excited vibrations may occur. In order to analyse these vibrations, a coupled electromagnetic and mechanical model is developed. From this model, two different mechanisms have been identified that may lead to self-excitation. Results show how design parameters may be used to reduce or mitigate self-excited vibrations that may damage the structure or increase stopping distance.
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Tippelt, D., Edelmann, J., Plöchl, M., Jirout, M. (2020). Analysis of Self-excited Vibrations of an Electromagnetic Track Brake. In: Klomp, M., Bruzelius, F., Nielsen, J., Hillemyr, A. (eds) Advances in Dynamics of Vehicles on Roads and Tracks. IAVSD 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-38077-9_52
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DOI: https://doi.org/10.1007/978-3-030-38077-9_52
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