Aero-Structural Design Optimization of a Morphing Aileron Considering Actuation Aspects

This paper summarizes the results obtained in the framework of the Clean Aviation Joint Undertaking on the development of a dedicated morphing aileron. This device, designed to be installed on the high aspect ratio wing of a hybrid–electric regional aircraft, is conceived to replace the traditional hinged aileron with an innovative aileron optimized for minimizing the actuation force and the aerodynamic drag, ensuring a smoothed and continuous skin surface. The design of such a complex device required a multi–disciplinary design approach, able to combine aerodynamic performances, kinematic and structural requirements, and actuation aspects related to the compliant structures concept on which the morphing device is based. The paper includes the description of the different design levels together with the obtained results, the selected optimal solutions, and finally a numerical validation phase.