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Application of numerical optimization to rotor aerodynamic designBased on initial results obtained from the performance optimization code, a number of observations can be made regarding the utility of optimization codes in supporting design of rotors for improved performance. (1) The primary objective of improving the productivity and responsiveness of current design methods can be met. (2) The use of optimization allows the designer to consider a wider range of design variables in a greatly compressed time period. (3) Optimization requires the user to carefully define his problem to avoid unproductive use of computer resources. (4) Optimization will increase the burden on the analyst to validate designs and to improve the accuracy of analysis methods. (5) Direct calculation of finite difference derivatives by the optimizer was not prohibitive for this application but was expensive. Approximate analysis in some form would be considered to improve program response time. (6) Program developement is not complete and will continue to evolve to integrate new analysis methods, design problems, and alternate optimizer options.
Document ID
19870002324
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pleasants, W. A., III
(Army Research and Technology Labs. Fort Eustis, VA, United States)
Wiggins, T. J.
(Army Research and Technology Labs. Fort Eustis, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1984
Publication Information
Publication: NASA. Langley Research Center Recent Experiences in Multidisciplinary Analysis and Optimization, Part 2
Subject Category
Aircraft Design, Testing And Performance
Accession Number
87N11757
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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