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Testing Sound Intensity and Analyzing Noise of Engine

Yin Cheng-wei

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Abstract

This paper uses sound intensity technique to test the noise of petrol engine.The experimental data is collected and stored in STAR acoustics structural measurement systems.Contour maps,sound intensity vector,sound power and sound power level are computed.The results identify the main noise source of this engine,and source position,main noise frequency,sound power magnitude and contribution of sound power.

About this research paper

What this paper is about

This paper uses sound intensity technique to test the noise of petrol engine.The experimental data is collected and stored in STAR acoustics structural measurement systems.Contour maps,sound intensity vector,sound power and sound power level are computed.The results identify the main noise source of this engine,and source position,main noise frequency,sound power magnitude and contribution of sound power.

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Available abstract

This paper uses sound intensity technique to test the noise of petrol engine.The experimental data is collected and stored in STAR acoustics structural measurement systems.Contour maps,sound intensity vector,sound power and sound power level are computed.The results identify the main noise source of this engine,and source position,main noise frequency,sound power magnitude and contribution of sound power.

Key concepts: Sound intensity, Sound power, Acoustics, Noise (video), Sound (geography), Intensity (physics), Ambient noise level, Power (physics)

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