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The application of quadratic optimal cooperative control synthesis to a CH-47 helicopterA control-system design method, quadratic optimal cooperative control synthesis (CCS), is applied to the design of a stability and control augmentation system (SCAS). The CCS design method is different from other design methods in that it does not require detailed a priori design criteria, but instead relies on an explicit optimal pilot-model to create desired performance. The design method, which was developed previously for fixed-wing aircraft, is simplified and modified for application to a Boeing CH-47 helicopter. Two SCAS designs are developed using the CCS design methodology. The resulting CCS designs are then compared with designs obtained using classical/frequency-domain methods and linear quadratic regulator (LQR) theory in a piloted fixed-base simulation. Results indicate that the CCS method, with slight modifications, can be used to produce controller designs which compare favorably with the frequency-domain approach.
Document ID
19870044798
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Townsend, Barbara K.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: American Helicopter Society, Journal
Volume: 32
ISSN: 0002-8711
Subject Category
Aircraft Stability And Control
Accession Number
87A32072
Distribution Limits
Public
Copyright
Other

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