Oscillations of Hypersonic Flying Vehicle inside Area of Dynamical Stability

The preliminary analysis of proper oscillations of the 3D finite-element electronic model of the hypersonic flying vehicle whose engine's length is comparable with the glider's length is performed. The simplest two-beam model is used for revealing the dynamical effect. The characteristic longitudinal and lateral forms of aeroelastic oscillations of flying vehicle are detected. It is shown that the known oscillation theorems (properties) of theory of oscillations are violated inside the dynamic stability area and well away from its boundary.