Reduction of discrete frequency noise in small, subsonic axial-flow fans

The discrete frequency noise radiated from representative tyes of axial-flow fans used in electronic equipment is studied in detail. Narow-band analysis of the discrete frequency noise radiated by these types of fans has been conducted in an anechoic environment. The farfield sound pressure level an...

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Veröffentlicht in:The Journal of the Acoustical Society of America 1984-01, Vol.76 (1), p.158-166
Hauptverfasser: FITZGERALD, J. M, LAUCHLE, G. C
Format: Artikel
Sprache:eng
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