AEROELASTIC OSCILLATIONS IN A PLANE CHANNEL
The conditions for the arising of aeroelastic oscillations (self-excited oscillations) in a plane channel with one of the walls having two degrees of freedom have been investigated. The investigation method is based on modeling non-stationary gas flow in a channel to determine the aerodynamic forces, followed by the analysis of the aeroelastic stability. The effect of structural parameters of the model on the implementation of attenuating and self-sustaining oscillation modes is shown; a picture of the aeroelastic stability boundary is given. A paradox of destabilization of the system with the increasing damping is observed for a certain parameter set.