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Predicting the aeroelastic behavior of a wind-tunnel model using transonic small disturbance theoryThe CAP-TSD (Computational Aeroelasticity Program - Transonic Small Disturbance) code, developed at the NASA-Langley Research Center, is applied to the Active Flexible Wing (AFW) wind-tunnel model for prediction of the model's transonic aeroelastic behavior. Static aeroelastic solutions using CAP-TSD are computed. Dynamic (flutter) analyses are then performed as perturbations about the static aeroelastic deformations of the AFW. The accuracy of the static aeroelastic procedure is investigated by comparing analytical results to those from AFW wind-tunnel experiments. Dynamic results are presented in the form of root loci at different Mach numbers for a heavy gas and for air test mediums. The resultant flutter boundaries for both gases, and the effects of viscous damping and angle of attack on the flutter boundary in air, are also presented.
Document ID
19910039682
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Silva, Walter A.
(Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Bennett, Robert M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Research And Support Facilities (Air)
Accession Number
91A24305
Distribution Limits
Public
Copyright
Other

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