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Application of two synthesis methods for active flutter suppression on an aeroelastic wind tunnel modelTwo flutter suppression control laws have been synthesized, implemented, and demonstrated on an aeroelastic wind-tunnel model of a transport-type wing. One control law was synthesized using an aerodynamic energy method and the other from using results of optimal control theory. At M = 0.95, the model was tested to a dynamic pressure 44 percent above the system-off flutter dynamic pressure. Both synthesis methods yielded control laws effective in suppressing flutter. The experimental results also indicate that wind-tunnel turbulence is an important factor in the experimental demonstration of system performance.
Document ID
19790061301
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Abel, I. (NASA Langley Research Center Hampton, VA, United States)
Newsom, J. R. (NASA Langley Research Center Hampton, VA, United States)
Dunn, H. J. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 79-1633
Meeting Information
Meeting: Atmospheric Flight Mechanics Conference for Future Space Systems
Location: Boulder, CO
Start Date: August 6, 1979
End Date: August 8, 1979
Accession Number
79A45314
Distribution Limits
Public
Copyright
Other

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