Boundary Control for Flutter Suppression of a Flexible Wing under Unsteady Aerodynamic Loads

This paper addresses the boundary control for flutter suppression of a flexible wing, both in bending and twisting displacements, under unsteady aerodynamic loads. The wing is modeled by a distributed parameter system described as two coupled partial differential equations. The problem is tackled in the framework of semigroup theory, and a Lyapunov-based stability analysis is carried out to assess that the system energy, as well as the bending and twisting displacements, decays exponentially to zero. The effectiveness of the proposed boundary control scheme is evaluated based on simulations.