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Noise Test for Vehicle Gas Source Device Using Sound Intensity Method

Zhang Geng-ning

Abstract

The principle and advantages of the sound intensity method for noise determination of vehicle gas source device were introduced. In order to study the overall noise of gas source device, the noise of gas source device was tested using p-p sound intensity technique. The sound power and 1/3 octave spectrum on each segment of gas source device were analyzed. Then the position of main noise source,main noise frequency and overall radiation intensity were identified. The results can provide theoretical basis for the prevention of noise pollution of vehicle gas source device.

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Available abstract

Key concepts: Sound intensity, Acoustics, Noise (video), Sound power, Ambient noise level, Intensity (physics), Octave (electronics), Noise generator