Vibroacoustic Metamaterials for Noise and Vibration Reduction on the Cover of Power Electronics of an electric Vehicle

• Published in: 2023 Seventeenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) pp. X-294 - X-296
• Main Authors: Ries, S., Droste, M., Atzrodt, H., Lopez, J. Condor, Finger, K., Erraji, A., Alasadi, E.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 11-09-2023
• Subjects: Asphalt; Damping; Electric vehicles; Mechanical power transmission; Metals; Metamaterials; Vibrations
• ISSN: 2573-2706
• DOI: 10.1109/Metamaterials58257.2023.10289529

In the presented work the potentials of vibroacoustic metamaterials for noise and vibration reduction for the use in electric vehicles are shown. Vibroacoustic metamaterials are applied to a cover of power electronics of an electric powertrain. The work involves the numerical stop band prediction, the elaboration of resonator designs, their manufacturing, and the experimental validation of the vibroacoustic metamaterial applied to the target structure. Validation measurements of the cover configurations are carried out in terms of structural dynamics. Three cover configurations with integrated vibroacoustic metamaterials, differing in terms of damping are compared to a reference cover, a cover with an added bitumen damping layer and an add-on vibroacoustic metamaterial.