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Transonic test of a forward swept wing configuration exhibiting Body Freedom FlutterThe aeroelastic dynamic instability designated Body Freedom Flutter (BFF) involves aircraft pitch and wing bending motions characteristic of forward swept wing (FSW) aircraft. Attention is presently given to the results of tests conducted on a 1/2-scale cable-mounted FSW wind tunnel model, with and without relaxed static stability (RSS) control conditions. BFF instability boundaries were found to occur at significantly lower air speeds than those associated with aeroelastic wing divergence on the same model. Servoaeroelastic stability analyses have been conducted which proved capable of predicting the measured onset of BFF, in both the statically stable and RSS configurations tested.
Document ID
19850048205
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chipman, R.
(Grumman Aerospace Corp. Bethpage, NY, United States)
Rauch, F.
(Grumman Aerospace Corp. Bethpage, NY, United States)
Rimer, M.
(Grumman Aerospace Corp. Bethpage, NY, United States)
Muniz, B.
(Grumman Aerospace Corp. Bethpage, NY, United States)
Ricketts, R. H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 85-0689
Meeting Information
Meeting: Structures, Structural Dynamics, and Materials Conference
Location: Orlando, FL
Start Date: April 15, 1985
End Date: April 17, 1985
Accession Number
85A30356
Funding Number(s)
CONTRACT_GRANT: NAS1-17102
Distribution Limits
Public
Copyright
Other

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