Online basic seminar
Language: German
Image: ©Leibniz University HannoverOnline seminar: FVA 960 I research project
In gearboxes, vibrations occur during Gear mesh , which spread to the housing via shafts and bearings and are emitted there as airborne noise. The noise contains frequencies that are multiples of the speed and is perceived as a very unpleasant whine. Vehicles with purely electric traction drives in particular face major challenges here, as there is no masking noise from the combustion engine. Remedial measures such as tooth flank corrections or the introduction of damping materials are associated with additional manufacturing and material costs and are therefore not the best economic solution.
This seminar presents the active vibration control (AVC) mechanism from the 960 I research project. It will be explained how an antiphase force excitation can be generated by injecting harmonic currents into the electrical machine, which leads to compensation of the existing disturbing force excitations. The method is validated on the basis of measurement results from a high-speed traction drive.
Target audience
All those interested in the results of the research project FVA 960 I.
Speaker
Jonas Jansen
Leibniz University Hannover
Institute for Drive Systems and Power Electronics
www.ial.uni-hannover.de
Fees (net)
Free