An Investigation of Internal Resonance in Aeroelastic Systems |
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Authors: | Gilliatt Heather C Strganac Thomas W Kurdila Andrew J |
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Institution: | (1) Department of Aerospace Engineering, Texas A & M University, College Station, TX, 77843-3141, U.S.A;(2) Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL, 32611, U.S.A |
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Abstract: | Although the study of internal resonance in mechanical systems has been given significant consideration, minimal attention has been given to internal resonance for systems which consider the presence of aerodynamic forces. Herein, the investigators examine the possible existence of internal resonances, and the related nonlinear pathologies that such responses may have, for an aeroelastic system which possesses nonlinear aerodynamic loads. Evidence of internal resonance is presented for specific classes of aeroelastic systems, and such adverse response indicates nonlinearities may lead to aeroelastic instabilities that are not predicted by traditional (linear) approaches. |
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Keywords: | internal resonance nonlinear aerodynamics aeroelasticity parametric resonance |
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