Design and Experimental Validation of Gust Load Alleviation Systems based on Static Output Feedback

The paper summarizes the activity performed in the framework of the EU funded project CS2-AIRGREEN2 aiming at the development and testing of Gust Load Alleviation technologies applied to the so-called Green Regional Aircraft. An extended numerical activity carried out on the reference aircraft established the due knowledge to start designing the experimental model and the systems for the final wind tunnel validation. The wind tunnel model is representative of the half aircraft having a geometrical scale equal to 1:6. The wing is fully aeroelastic, and the model is installed on a dedicated system, named Weight Augmentation System (WAS), allowing for pitch and plunge free motions. The paper describes in the details the wind tunnel model, the adopted controllers and reports the relevant results collected during the experimental campaign carried out at Large POLIMI’s wind tunnel.