... Abstract Future aircraft have a high aspect ratio wing (HARW). The low induced drag of the wing can reduce fuel consumption, which enables eco-friendly flight. HARW cannot be designed by using conventional linear aeroelastic analysis methods because it undergoes very flexible motion. Although...

... of the primary frame. This secondary frame holds at one end a cylinder that interacts with a flow field. As a result, aeroelastic oscillations may occur. Assuming the wind and the damping forces to be small, we can apply the averaging method to analze the asymptotic dynamic behavior. Here, we consider the case...

... of the results obtained to a model describ- ing aeroclastic oscillations of a structure with tw o-degrees-of- freedom. Keywords : Aeroelasticity, nonlinear oscillation, reso- nance, averaging, bifurcation analysis. INTRODUCTION We consider in this paper t he following system of cou- pled nonlinear oscillators: x...