Development of an Experimental Acoustic Noise Characterization Setup for Electric Motor Drive Applications

Moien Masoumi, Abeka Selliah and Berker Bilgin ()
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Moien Masoumi: McMaster Automotive Resource Center (MARC), Hamilton, ON L8P 0A6, Canada
Abeka Selliah: McMaster Automotive Resource Center (MARC), Hamilton, ON L8P 0A6, Canada
Berker Bilgin: McMaster Automotive Resource Center (MARC), Hamilton, ON L8P 0A6, Canada

Energies, 2024, vol. 17, issue 21, 1-21

Abstract: This paper presents the development of an experimental setup for acoustic noise characterization of electric motors. It describes the sound measurement microphones utilized in the setup and discusses the application of octave bands and A-weighting in noise measurement. Various methods for acoustic noise measurement and sound power calculation, including those based on sound pressure and sound intensity, are also covered. Given the relatively noisy test environment and restricted access around the test setup, discrete point sound intensity measurement is selected for sound power calculation. Initially, a stationary probe-holding fixture is designed and fabricated for sound intensity measurements. To enhance the fixture’s flexibility and the accuracy of the measurements, a transportable fixture is subsequently designed and fabricated. The necessary hardware and software settings for acoustic noise characterization are then developed. Finally, the setup is used to conduct acoustic noise characterization of an IPM motor, validating the application of the transportable probe-holding fixture.

Keywords: acoustic noise characterization; acoustic noise measurement; electric motor; sound intensity; sound power; sound pressure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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