Bistable wing of a water-air amphibious vehicle

Abstract

The invention discloses a bistable wing of a water-air amphibious air vehicle, relates to an air vehicle wing and aims at solving the problem that under different pneumatic environmental conditions, single-shaped wings of an existing air vehicle often cannot improve the pneumatic performance under a whole flight envelope at low speed and high speed and cannot meet the flight demand under the low speed and high speed condition. The bistable wing comprises a wing rib and a bistable structure. A longitudinal section of the wing rib is an NACA supercritical wing section, and an elastic rod is connected between the front edge and the rear edge of the wing rib. The bistable structure comprises a quadrangular connecting rod mechanism and two pneumatic muscle drivers. One pneumatic muscle driver is installed between two opposite corners of the quadrangular connecting rod mechanism, one top point of each quadrangular connecting rod mechanism is installed on the wing rib, the other top point of each quadrangular connecting rod mechanism is installed on the elastic rod, and the two pneumatic muscle drivers are located in the same vertical plane and are perpendicularly arranged. The bistable wing is used for the water-air amphibious air vehicle.

Description

technical field [0001] The invention relates to an aircraft wing, in particular to a bistable wing of an amphibious aircraft, belonging to the technical field of aircraft. Background technique [0002] Anti-submarine aircraft can be roughly divided into anti-submarine helicopters, ship-based fixed-wing anti-submarine aircraft, water anti-submarine aircraft and shore-based fixed-wing anti-submarine aircraft. Anti-submarine helicopters are widely equipped with various types of combat ships above naval frigates. This kind of anti-submarine force has the advantage of being easy to take off and land, and able to hover and work continuously. At present, the anti-submarine helicopters equipped by various countries mainly include: the "Seahawk" of the United States, the "Sea King" of the United Kingdom, the "Super Hornet" of France, and the "Ka-27" of the former Soviet Union. Short, difficult to adapt to today's complex and ever-changing war situation. The fixed-wing anti-submarin...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that existing aircraft face different aerodynamic environmental conditions at low and high speeds, and a single airfoil often cannot improve the aerodynamic performance under the entire flight envelope, and meet the flight requirements under high and low speed conditions problem, and then provide a kind of water-air amphibious aircraft bistable wing

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