This paper proposes an incremental nonlinear control method for aeroelastic sys- tem gust load alleviation and active flutter suppression. These two control objectives can be achieved without modifying the control architecture or the control parameters. The proposed method has guaranteed stability in the Lyapunov sense and also has robustness against external disturbances and model mismatches. The effectiveness of this control method is validated by wind tunnel tests of an active aeroelastic parametric wing apparatus, which is a typical wing section containing heave, pitch, flap, and spoiler degrees of freedom. Wind tunnel experiment results show that the proposed nonlinear incremental control can reduce the maximum gust loads by up to 46.7% and the root mean square of gust loads by up to 72.9%, while expanding the flutter margin by up to 15.9%.
|Title of host publication
|International Forum on Aeroelasticity and Structural Dynamics
|Number of pages
|Published - 2022
|International Forum on Aeroelasticity and Structural Dynamics 2022 - Universidad Carlos III of Madrid, Madrid, Spain
Duration: 13 Jun 2022 → 17 Jun 2022
|International Forum on Aeroelasticity and Structural Dynamics 2022
|13/06/22 → 17/06/22
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- wind tunnel experiment
- gust load alleviation
- flutter suppression
- nonlinear incremental control