Vertical take-off and landing fixed-wing unmanned aerial vehicle and take-off and landing method

Abstract

The invention discloses a vertical take-off and landing fixed-wing unmanned aerial vehicle which comprises rotor wings, a fuselage, wings and empennages. The rotor wings are arranged at the front end of the fuselage; the two wings are installed on the two sides of the fuselage front section. The three empennages are arranged at the tail part of the fuselage at intervals of 120 degrees by adopting a Y-shaped three-airfoil layout form; wherein the fuselage comprises a fuselage front section and a fuselage rear section, the fuselage rear section comprises three separable fuselage sections, the three separable fuselage sections are respectively connected with the fuselage front section through shafts, the three separable fuselage sections are respectively 120-degree parts of the fuselage rear section, and a control system controls the three separable fuselage sections to be unfolded or folded. The three unfolded separable fuselage sections form a triangular support, and the three folded separable fuselage sections form the fuselage rear section. The unmanned aerial vehicle has the function that vertical take-off and landing of a rotorcraft are not affected by terrains, and meanwhile has the long-endurance and high-load capacity of a fixed-wing unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the technical field of aviation vehicle design, and relates to an unmanned aerial vehicle, in particular to a vertical take-off and landing fixed-wing unmanned aerial vehicle. Background technique [0002] The current UAVs are mainly divided into several types: fixed-wing UAVs, unmanned helicopters, and multi-rotor UAVs. [0003] Fixed-wing UAVs have the characteristics of long endurance and low energy consumption. They are mainly used for long-term investigation and surveillance, communication relay in special environments, and civilian markets such as post-disaster search and rescue, film and television aerial photography, etc. Currently, most fixed-wing UAVs use catapult take-off , Slideway takeoff and other methods have a greater demand for venues. If the projection takeoff method is adopted, the weight of the fixed-wing UAV is required to be small, which will affect the load capacity of the fixed-wing UAV. [0004] Unmann...

AI Technical Summary

Problems solved by technology

[0003] Fixed-wing UAVs have the characteristics of long endurance and low energy consumption. They are mainly used for long-term investigation and surveillance, communication relay in special environments, and civilian markets such as post-disaster search and rescue, film and television aerial photography, etc. Currently, most fixed-wing UAVs use catapult take-off , slideway take-off, etc., the demand for the site is greater. If the projection take-off method is adopted, the weight of the fixed-wing UAV is required to be small, which will affect the load capacity of the fixed-wing UAV.

[0004] Unmanned helicopters have a good load capacity, but they consume a lot of energy, have a limited flight height, and lack long-term endurance capabilities

[0005] Although multi-rotor UAVs have the ability to accompany small units, respond quickly, and arrive quickly, their ability to stay in the air is generally weak. There are only a few models that can persist in the air for 1 hour, and it is difficult for multi-rotor UAVs to have sufficient load capacity.

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