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RESEARCH PAPERS

Active Sources in the Cutoff of Centrifugal Fans to Reduce the Blade Tones at Higher-Order Duct Mode Frequencies

[+] Author and Article Information
W. Neise

Deutsche Forschungssanstalt für Luft- und Raumfahrt Institut für Experimentelle Strömungsmechaik Abteilung Turbulenzforschung, Berlin Müller-Breslau-Strasse 8, 1000 Berlin 12, West-Germany

G. H. Koopmann

Department of Mechanical Engineering, The Pennsylvania State University, University Park, State College, PA 16803

J. Vib. Acoust 113(1), 123-131 (Jan 01, 1991) (9 pages) doi:10.1115/1.2930146 History: Received March 01, 1989; Revised July 01, 1989; Online June 17, 2008

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Copyright © 1991 by The American Society of Mechanical Engineers
Topics: Fans , Blades , Ducts
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