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Calculation of the transient motion of elastic airfoils forced by control surface motion and gustsThe time-domain equations of motion of elastic airfoil sections forced by control surface motions and gusts were developed for the case of incompressible flow. Extensive use was made of special functions related to the inverse transform of Theodorsen's function. Approximations for the special cases of zero stream velocity, small time, large and time are given. A numerical solution technique for the solution of the general case is given. Examples of the exact transient response of an airfoil are presented.
Document ID
19800023822
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Balakrishnan, A. V. (NASA Hugh L. Dryden Flight Research Center Edwards, CA, United States)
Edwards, J. W. (NASA Hugh L. Dryden Flight Research Center Edwards, CA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1980
Subject Category
Aerodynamics
Report/Patent Number
REPT-505-36-24
H-1125
NASA-TM-81351
Accession Number
80N32329
Funding Number(s)
CONTRACT_GRANT: NAS4-2472
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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