Vertical/short-distance take-off and landing aircraft with distributed power coupling lift augmentation airfoils

Abstract

The invention discloses a vertical / short-distance take-off and landing aircraft with distributed power coupling lift augmentation airfoils, and belongs to the field of aviation aircrafts. The aircraft comprises lift fans, an aircraft body, wings, high lift airfoils, distributed ducted fans and a motion mechanism, wherein the fuselage and the wings are in a flying wing layout with a fused wing body; the lift fan is embedded in the middle of the nose, is in a coaxial contra-rotating form and is used for generating a vertical upward lifting force; the distributed ducted fans are symmetrically distributed at the tail of the fuselage, and the side walls of the two ends of each distributed ducted fan are hinged to side plates fixed to the fuselage through rotating shafts correspondingly. The high-lift airfoil comprises an upper straight wing and a lower straight wing which are arranged in parallel and located at the upper end and the lower end of the outer side of an outlet of the distributed ducted fan respectively, and the two ends of each straight wing are connected with the side plates through movement mechanisms respectively and can tilt relative to the fuselage along the movement mechanisms. Hovering, vertical / short-distance taking-off and landing and cruising level flight of the aircraft in the air can be achieved, and due to the fact that lift force is provided in a lift augmentation airfoil mode, the aircraft can fly more safely and stably in a transition mode.

Description

technical field

[0001] The invention belongs to the field of aviation aircraft, and in particular relates to a vertical / short take-off and landing aircraft with distributed power coupled with a high-lift airfoil. Background technique

[0002] Fixed-wing aircraft have high cruising efficiency and high speed, but they have higher requirements for take-off and landing sites; helicopters can achieve vertical take-off and landing and hover in the air, but their flight speed is often limited. With the continuous expansion of aircraft application scenarios, the design indicators of aircraft are also constantly improving, and vertical take-off and landing aircraft that combine the advantages of fixed-wing aircraft and helicopters have attracted more and more attention. The relatively mature vertical take-off and landing aircraft abroad include the American F-35B fighter jet and the V-22 tilt-rotor helicopter. The F-35B uses a lift fan and a tail vectoring nozzle to achieve vertical...

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