In this paper we develop a data based model, design a high performance robust controller, and apply the controller in real-time to reduce narrowband acoustic noise from a cooling fan. A custom, portable enclosure houses the cooling fan. One end of the enclosure is fitted with four speakers and four microphones, inside of a short duct, connected to a data acquisition system and a personal computer. Passive materials mounted at the other end of the enclosure reduce backside noise. The frequency of the narrrowband noise is assumed unknown and therefore a control design that can be updated in realtime is needed. The control design that is presented uses a nominal model and a nominal controller. The nominal controller is enhanced by using closed loop signals and taking into account the modeling error. The end result is a data-based method for updating a nominal controller to improve performance.
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ASME 2008 Noise Control and Acoustics Division Conference
July 28–30, 2008
Dearborn, Michigan, USA
Conference Sponsors:
- Noise Control and Acoustics Division
ISBN:
0-7918-4839-6
PROCEEDINGS PAPER
Active Noise Control of a Cooling Fan in a Short Duct
Charles E. Kinney,
Charles E. Kinney
University of California at San Diego, La Jolla, CA
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Alberto Villalta,
Alberto Villalta
Universita` di Padova, Padova, Italy
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Raymond A. de Callafon
Raymond A. de Callafon
University of California at San Diego, La Jolla, CA
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Charles E. Kinney
University of California at San Diego, La Jolla, CA
Alberto Villalta
Universita` di Padova, Padova, Italy
Raymond A. de Callafon
University of California at San Diego, La Jolla, CA
Paper No:
NCAD2008-73086, pp. 249-259; 11 pages
Published Online:
June 22, 2009
Citation
Kinney, CE, Villalta, A, & de Callafon, RA. "Active Noise Control of a Cooling Fan in a Short Duct." Proceedings of the ASME 2008 Noise Control and Acoustics Division Conference. ASME 2008 Noise Control and Acoustics Division Conference. Dearborn, Michigan, USA. July 28–30, 2008. pp. 249-259. ASME. https://doi.org/10.1115/NCAD2008-73086
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