Research on Noise Reduction of Mine Contra-rotating Auxiliary Fan
HUANG Xueman
Abstract： In this paper, the deficiency of using A sound level for noise evaluation was pointed out and analysis was carried out on the noise frequency of the mine contra-rotating auxiliary fan. Based on the frequency spectrum characteristics of each band, a muffler was rationally designed with frequency shifting technology, and the true purpose of noise reduction was finally achieved.
Keywords：contra-rotating auxiliary fannoisefrequency spectrumfrequency shiftingmuffler
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 43-45,49 )