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.
Analysis of Self-excited Vibrations of an Electromagnetic Track Brake
Lect.Notes Mechanical Engineering
The IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks ; 2019 ; Gothenburg, Sweden August 12, 2019 - August 16, 2019
2020-02-13
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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