Study on Surface Noise Source Identification for Diesel Engine Using Sound Intensity Method
Fengrong Bi
Abstract
Fengrong Bi
Abstract
The surface noise of diesel engines was measured by using the sound intensity method.Using the data of contour of the sound intensity,the main noise sources of diesel engine,oil pan,booster and high pressure oil pump,were identified.Their contributions to the noise power were analyzed.Based on the analysis,some effective reference data was provided for reducing this type of diesel engine's noise.
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The surface noise of diesel engines was measured by using the sound intensity method.Using the data of contour of the sound intensity,the main noise sources of diesel engine,oil pan,booster and high pressure oil pump,were identified.Their contributions to the noise power were analyzed.Based on the analysis,some effective reference data was provided for reducing this type of diesel engine's noise.
Key concepts: Sound intensity, Acoustics, Diesel engine, Diesel fuel, Noise (video), Sound pressure, Automotive engineering, Sound power