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Acoustic Design of Rotor Blades Using A Genetic AlgorithmA genetic algorithm coupled with a simplified acoustic analysis was used to generate low-noise rotor blade designs. The model includes thickness, steady loading and blade-vortex interaction noise estimates. The paper presents solutions for several variations in the fitness function, including thickness noise only, loading noise only, and combinations of the noise types. Preliminary results indicate that the analysis provides reasonable assessments of the noise produced, and that genetic algorithm successfully searches for "good" designs. The results show that, for a given required thrust coefficient, proper blade design can noticeably reduce the noise produced at some expense to the power requirements.
Document ID
19960003607
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
V. L. Wells
(Arizona State University Tempe, Arizona, United States)
A. Y. Han
(Arizona State University Tempe, Arizona, United States)
W. A. Crossley
(Arizona State University Tempe, Arizona, United States)
Date Acquired
September 6, 2013
Publication Date
August 1, 1995
Publication Information
Publication: Aerodynamics and Aeroacoustics of Rotorcraft
Publisher: AGARD
Volume: AGARD-CP-552
Issue Publication Date: August 1, 1995
ISBN: 92-836-0015-0
URL: https://apps.dtic.mil/sti/citations/ADA298988
Subject Category
Aeronautics (General)
Meeting Information
Meeting: 75th Fluid Dynamics Symposium
Location: Berlin
Country: DE
Start Date: October 10, 1994
End Date: October 13, 1994
Sponsors: North Atlantic Treaty Organization
Accession Number
96N13617
Funding Number(s)
CONTRACT_GRANT: NAG2-882
Distribution Limits
Public
Copyright
Other
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