Abstract
Conditions of dynamic instability at parametric resonance in an oscillatory system with three degrees of freedom, which models the motion of an elastically fixed high-drag airfoil under unsteady aerohydrodynamic loads due to the vortex trail separation, are obtained in the linear approximation.
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Original Russian Text © I.K. Marchevskii, G.A. Shcheglov, 2016, published in Izvestiya Akademii Nauk, Mekhanika Tverdogo Tela, 2016, No. 3, pp. 131–139.
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Marchevskii, I.K., Shcheglov, G.A. On the dynamic stability of an elastically fixed high-drag airfoil under vortical parametric excitations. Mech. Solids 51, 349–356 (2016). https://doi.org/10.3103/S0025654416030122
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DOI: https://doi.org/10.3103/S0025654416030122