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A numerical approach to controller design for the ACES facilityIn recent years the employment of active control techniques for improving the performance of systems involving highly flexible structures has become a topic of considerable research interest. Most of these systems are quite complicated, using multiple actuators and sensors, and possessing high order models. The majority of analytical controller synthesis procedures capable of handling multivariable systems in a systematic way require considerable insight into the underlying mathematical theory to achieve a successful design. This insight is needed in selecting the proper weighting matrices or weighting functions to cast what is naturally a multiple constraint satisfaction problem into an unconstrained optimization problem. Although designers possessing considerable experience with these techniques have a feel for the proper choice of weights, others may spend a significant amount of time attempting to find an acceptable solution. Another disadvantage of such procedures is that the resulting controller has an order greater than or equal to that of the model used for the design. Of course, the order of these controllers can often be reduced, but again this requires a good understanding of the theory involved.
Document ID
19930009634
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Frazier, W. Garth
(Ohio Univ. Athens, OH, United States)
Irwin, R. Dennis
(Ohio Univ. Athens, OH, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1993
Publication Information
Publication: NASA. Langley Research Center, The Fifth NASA(DOD Controls-Structures Interaction Technology Conference, Part 1
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
93N18823
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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