The Sound of Silence - Reduced noise with electric propulsion
With propulsion systems for planes becoming electric, noise pollution from aircraft is expected to be significantly reduced. We decided to put the promise to the test : we compared acoustic levels of the electric Extra aircraft powered with the Siemens electrical Motor and a standard Extra 330LE aircraft with internal combustion engine, using Simcenter noise and vibration engineering solutions.
During flight, the measured noise level from the Extra 330LE aircraft with the Siemens SP260D electrical motor is 14.5 dB(A) less than the one from the combustion engine aircraft.
The fly-over noise and in cabin measurements were performed with the LMS SCADAS Mobile, LMS SCADAS XS and LMS Test.Lab test and analysis software, part of the Simcenter portfolio from Siemens PLM Software.
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