Title :
On the use of magnetic bearings for global control of fan noise
Author :
Watkins, J.M. ; Piper, G.E. ; Obrien, R.T. ; Baumann, D.C.
Author_Institution :
Dept. of Syst. Eng., US Naval Acad., Annapolis, MD, USA
Abstract :
In this paper, a novel approach is presented to reduce fan related noise in an acoustic duct. By installing magnetic bearings on the noise producing machinery, it is possible to collocate the anti-noise source with the disturbance noise source. This approach allows for global noise reduction throughout the duct system
Keywords :
active noise control; magnetic bearings; acoustic duct; active noise control; antinoise source/noise source collocation; fan noise reduction; global control; magnetic bearings; Acoustic noise; Active noise reduction; Actuators; Control systems; Ducts; Low-frequency noise; Magnetic levitation; Magnetic noise; Noise generators; Noise reduction;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.782894
