Transverse arrangement type composite thrust high-speed helicopter

Abstract

The invention relates to a transverse arrangement type composite thrust high-speed helicopter. The helicopter comprises a helicopter body, wings symmetrically arranged on the two sides of the helicopter body, a tail wing arranged at the tail of the helicopter body, engines arranged at the ends of the two sides of the wings, transversely arranged rotor wings arranged above the engines and variablepitch propellers arranged at the positions, close to the direction of the tail wing, of the rears of the engines, wherein the tail wing comprises horizontal tails used for achieving effects of stabilizing pitching and vertical fins used for providing yaw direction motion, the axes of the variable pitch propellers are parallel to the axis of the helicopter body. The transverse arrangement type composite thrust high-speed helicopter sufficiently utilizes advancing blades of the rigid rotor wings at a high speed, and thus pneumatic interference among the rotor wings is reduced; the flying stability can be improved through V-shaped arrangement; the rotor wing / wing interference is effectively reduced by the rigid blade characteristic in the forward flying process, and the transverse distancebetween the two rotor wings sharply reduces the rigidness and the weight of the wings; and propellant blades are arranged below the rotor wings, a transmission system is simplified, and the helicopterbody space is saved.

Description

technical field [0001] The invention belongs to the technical field of helicopter aerodynamic layout design, and in particular relates to a transverse compound thrust high-speed helicopter. Background technique [0002] There are roughly two types of high-speed helicopters: one is a compound helicopter. On the basis of the conventional helicopter configuration, by setting the propulsion device and the wing, the rotor is unloaded during forward flight, and the lift and forward power of the conventional helicopter depend on the flight of the rotor. Principle, such as X2 helicopter. The other is the so-called conversion helicopter, which flies in helicopter mode in hovering and vertical flight states, and in airplane mode when flying forward to achieve high speed. Such conversion helicopters are mainly tiltrotor and parked rotor aircraft, such as V22 helicopters. [0003] However, the hovering performance and maneuverability of the tiltrotor are obviously inferior to those of...

AI Technical Summary

Problems solved by technology

[0003] However, the hovering performance and maneuverability of the tilting rotorcraft are obviously inferior to those of compound helicopters and traditional configuration helicopters, and the rate of autorotation and descent of the tilting rotorcraft is too large, making it difficult to achieve autorotation landing

While the X2 helicopter retains the hovering ability, it can increase the flight speed to 460km / h. However, the X2 helicopter uses a coaxial rigid dual-rotor, the control mechanism is more complicated, and the axial distance between the two rotors is small. Still in the forward flight state, there is a large aerodynamic interference between the two rigid rotors

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