Aeroelastic wave attenuation of UAV wing with smart metamaterial resonators

This paper proposes a UAV wing based on smart metamaterial resonators (smart meta-wing), and studies its vibration wave attenuation under aerodynamic loads. A novel aeroelastic transfer matrix, incorporating aerodynamic effects, is developed to analyze the wave propagation. The study examines the influence of smart resonators on the coupled flexural-torsional wave attenuation with and without aerodynamic effects. The findings reveal that a new bandgap (aeroelastic bandgap) is formed along with local bandgap (SR bandgap), effectively attenuating both flexural and torsional waves. Additionally, the bandgap behavior can be actively tuned by varying the control gain of smart resonators. The proposed smart meta-wing model and aeroelastic transfer matrix offer a novel approach for actively attenuating the aeroelastic vibration waves of UAV wings for desired frequency range.