Application of Sound Intensity Measurement Method to the Identification of Surface Noise Source of the Diesel Engine

摘要

In view of the loud surface radiated noise of the diesel engine, we can identify the surface noise source by adopting sound intensity measurement method. According to the test result, we have found that engine's oil pan and intake manifold is the main noise source on the left side of the engine, cylinder head is the main noise source on the top side, and exhaust pipe is main noise source on the right side.