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Predicting Unsteady Aeroelastic BehaviorNew method for predicting subsonic flutter, static deflections, and aeroelastic divergence developed. Unsteady aerodynamic loads determined by unsteady-vortex-lattice method. Accounts for aspect ratio and angle of attack. Equations for motion of wing and flow field solved iteratively and simultaneously. Used to predict transient responses to initial disturbances, and to predict steady-state static and oscillatory responses. Potential application for research in such unsteady structural/flow interactions as those in windmills, turbines, and compressors.
Document ID
19900000480
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Strganac, Thomas W.
(NASA Langley Research Center, Hampton, VA.)
Mook, Dean T.
(Virginia Polytechnic Inst. and State Univ.)
Date Acquired
August 14, 2013
Publication Date
September 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 9
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14130
Accession Number
90B10480
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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