A vector variable-pitch propulsion device for rotor-fixed-wing compound vertical take-off and landing aircraft

Abstract

The invention discloses a vector pitch-variable propulsion device for a rotor-fixed-wing composite vertical take-off and landing aircraft, which comprises a propeller pitch variable device and a vector propulsion device. The propeller pitch change device is two sets of gaps opened symmetrically on the rear edge of the left and right wings of the aircraft, which are used to change the pitch of the propeller, and then accurately adjust the thrust generated by the variable pitch propeller. The two sets of propeller pitch change devices are each equipped with a set of vector propulsion devices, which are used to control the propeller pitch change device to rotate up and down, and then change the pitch angle from the propeller to realize the change of thrust direction. The present invention has the advantage that the effect of the vector adjusting device and the propeller pitch changing device can be combined to provide control moments in pitch and roll-off directions, and accurately adjust the attitude of the flight.

Description

technical field [0001] The invention belongs to the field of aeronautical vehicle power scheme design, and in particular relates to a propulsion device for a rotor-fixed-wing composite vertical take-off and landing aircraft, which is used to improve the flight control performance and stability performance of a mixed-layout helicopter. Background technique [0002] The hybrid layout helicopter combines the flight characteristics of helicopters and fixed-wing aircraft, and has both vertical take-off and landing and high-speed level flight capabilities. Its application prospects are very broad and have good application prospects. It is one of the hot spots in the field of aircraft research. One of the more mature layouts is the combination of double-bladed rotors and fixed wings, and its flight state transition consists of the following parts: when taking off, similar to ordinary helicopters, the lift generated by the rotors takes off vertically; after reaching a certain height ...

AI Technical Summary

Problems solved by technology

[0004] 1) In the vertical take-off and landing state, there is a lack of control torque in the pitch and roll directions;

[0005] 2) Traditional propulsion devices cannot achieve precise output control and are not suitable for complex attitude adjustments;

[0006] 3) The traditional power unit is heavy and placed in the middle of the wing requires high structural strength

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