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01-04-2023 | Development

Vibroacoustic Metamaterials for Reduced Sound Radiation of an Electric Powertrain

Authors: Marvin Droste, Sebastian Rieß, José G. Cóndor López, Armin Erraji

Published in: MTZ worldwide | Issue 4/2023

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In this paper, the Fraunhofer Institute for Structural Durability and System Reliability LBF presents an integrated concept for the cover of the power electronics of an electric powertrain. Vibroacoustic metamaterials can effectively reduce the structure-borne sound propagation and airborne sound radiation in wide frequency ranges, so-called stop bands. Experimental investigations show that a reduction in structure-borne and airborne noise of up to 12 dB in the one-third octave bands between 315 and 1000 Hz can be achieved. …

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Title: Vibroacoustic Metamaterials for Reduced Sound Radiation of an Electric Powertrain
Authors: Marvin Droste
Sebastian Rieß
José G. Cóndor López
Armin Erraji
Publication date: 01-04-2023
Publisher: Springer Fachmedien Wiesbaden
Published in: MTZ worldwide / Issue 4/2023
Electronic ISSN: 2192-9114
DOI: https://doi.org/10.1007/s38313-023-1436-5

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