Hangkong bingqi (Oct 2023)
Design and Research of Pneumatic Variable Camber Wing Structure Based on Double-Layer Elastic Connection
Abstract
Variable camber wing is one of the key research directions of advanced aircraft in the future. The inhe-rent contradiction between the rigidity of wing structure and the bending deformation ability is the difficulty in the design of variable camber wing structure. In this paper, a new structure and function integrated variable camber wing structure is designed. Based on the inductive motion mechanism of mimosa in nature, on the one hand, a double-layer array M-type elastic connector is arranged in the elastic deformation zone of the variable camber ribs to meet the requirements of structural stiffness and flexible deformation. On the other hand, the aerodynamic muscle is embedded in the ribs to meet the airfoil deformation drive while maintaining the overall airfoil structural stiffness. Through simulation analysis and experimental test of the prototype, the results show that the variable camber wing design can meet the camber change effect of 13.5° upward and 9.5° downward, thus verifying the feasibility of the variable camber wing structure design.
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