Research on Bionic Foldable Spray Aircraft Wings

In this paper, the hind wing of Coccinella septempunctata is selected as the research object to design the bionic foldable spray aircraft wing. The structure of the bionic wing, the related flapping mechanism, the folding mechanism and other aircraft components are designed, and the two key parts of the bionic wing and arm are statically analyzed and optimized. To reduce the vibration in flight, modal analysis of the bionic wing and arm is carried out, and the natural frequencies and modes of the two parts are explored. The results show that the lower natural frequency has the greatest influence on the dynamic characteristics of the components. The influence of the material properties on the modal characteristics is studied by changing the material characteristics of the components. The flow around the bionic wing is simulated by FLUENT software. The velocity distribution and pressure distribution of the flow field around the bionic wing are obtained. The influence of aerodynamics with attack angle α is analyzed to clarify the flight principle of the bionic wing.