Linear Parameter Varying Control for Active Flutter Suppression Based on Adaptive Reduced Order Model

Active flutter suppression was very attractive research interest with the development of the light-weight structure incorporated into aircraft design. The classic active flutter controller was often designed based on the low accurate and fidelity linear aerodynamic model. And most of them were designed with linear time invariant system without considering the time varying parameters such as Mach number, angle of attack and etc. in the real flight. A new general linear parameter varying aeroservoelastic model with the nonlinear aerodynamics based on adaptive POD method was developed. And then the LPV controller design method was developed. The Goland+ wing aeroelastic model was applied to validate the new method. The simulation results show that the new auto-schedule controller can suppress the flutter with good accuracy and robustness, and improve the flutter boundary about 20% to 30%, especially in the transonic regime. Most importantly, the LPV controller provides a good attractive tool for virtual flutter flight experiment.

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