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Suppression of flutterAn active aerodynamic control system to control flutter over a large range of oscillatory frequencies is described. The system is not affected by mass, stiffness, elastic axis, or center of gravity location of the system, mode of vibration, or Mach number. The system consists of one or more pairs of leading edge and trailing edge hinged or deformable control surfaces, each pair operated in concert by a stability augmentation system. Torsion and bending motions are sensed and converted by the stability augmentation system into leading and trailing edge control surface deflections which produce lift forces and pitching moments to suppress flutter.
Document ID
19730017277
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Nissim, E.
(National Academy of Sciences - National Research Council Washington, DC, United States)
Date Acquired
September 2, 2013
Publication Date
May 22, 1973
Subject Category
Aircraft
Report/Patent Number
Patent Number: NASA-CASE-LAR-10682-1
Patent Number: US-PATENT-3,734,432
Patent Application Number: US-PATENT-APPL-SN-127915
Accession Number
73N26004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LAR-10682-1|US-PATENT-3,734,432
Patent Application
US-PATENT-APPL-SN-127915
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