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Propeller tone burstsIntense high frequency (25-38 kHz) tone bursts have been observed in acoustic tests of a scale model of a general aviation propeller. The amplitude of the tone burst is approximately equal to the amplitude of the propeller noise signature. The conditions necessary for the production of these tone bursts are described. The experiments indicate that the origin of these bursts is a periodic flow oscillation on the suction surface of the propeller blade tips which may be due to the interaction between an oscillating shock wave and a laminar boundary layer.
Document ID
19840038426
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1016/0022-460X(83)90385-1
Authors
Succi, G. P. (Bolt Beranek and Newman, Inc. Cambridge, MA, United States)
Munro, D. H. (California, University Lawrence Livermore National Laboratory, Livermore, CA, United States)
Ingard, K. U. (MIT Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
July 22, 1983
Publication Information
Publication: Journal of Sound and Vibration
Volume: 89
ISSN: 0022-460X
Subject Category
Acoustics
Accession Number
84A21213
Funding Number(s)
CONTRACT_GRANT: NAS1-15154
Distribution Limits
Public
Copyright
Other

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