Robust LQR control for stall flutter suppression: A polytopic approach
Résumé
In this paper, a robust Linear quadratic regulator (LQR) of a NACA 0018 wing with a flap actuator is developed for stall flutter suppression. The nonlinear and switched set of equations of the aeroelastic model is detailed and conveniently expressed as a polytopic uncertain system. The model is then derived to obtain a Linear matrix inequalities (LMIs) formulation of the LQR problem in the presence of uncertainties. The problem is then solved and the arising solutions are presented.
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