Dynamic Aeroelastic Response of Aircraft Wings Modeled as Anisotropic Thin-Walled Beams

The dynamic aeroelastic response of aircraft wings modeled as anisotropic composite thin-walled beams in an incompressible ow and exposed to gust and blast loads is examined. The structural model incorpora tesa number of nonclassicaleffects, such as transverse shear, material anisotropy, wa rping inhibition, and rotatory inertia. The circumferentially asymmetric stiffness layup is used to generate preferred elastic couplings, and in this context, the implication of elastic coupling, warping inhibitionon the response isinvestigated. The unsteady incompressible aerodynamics for arbitrary small motion in the time doma in is based on the concept of indicial functions. The implication of directionality property of composite material is revealed, the in uence of the gust\bla stop roles on the response is discussed, and a number of conclusions are outlined.