A vertical take-off and landing unmanned aerial vehicle and its control method

Abstract

A vertical take-off and landing unmanned aerial vehicle and its control method. The unmanned aerial vehicle includes a wing-body fusion fuselage, a power system, and a landing gear. The power system includes a turbofan engine and a lift fan engine; The plane’s longitudinal axis and horizontal axis are both symmetrical structures; two turbofan engines are symmetrically connected to the left and right sides of the wing-body fusion fuselage, and the turbofan engines are connected to the wing-body fusion fuselage through a tilting transmission mechanism; the two lift The fan engines are buried symmetrically at the front and rear ends of the wing-body fusion body. The control method includes five stages, stage 1: vertical take-off → hovering in the air; stage 2: hovering in the air → level flight; stage 3: level flight; stage 4: level flight → hovering in the air; stage 5: hovering in the air → vertical landing. When the UAV takes off and lands vertically, four engines provide lift and auxiliary balance. The control difficulty of the aircraft is low and the internal space of the fuselage is large, which solves the problems of difficult control and small load of the existing vertical take-off and landing unmanned aircraft.

Description

technical field [0001] The invention belongs to the technical field of aviation aircraft, and in particular relates to a vertical take-off and landing unmanned aerial vehicle and a control method thereof. Background technique [0002] In recent years, UAV technology has developed rapidly. In terms of civilian use, UAVs have great application value in aerial photography, transportation, inspection, plant protection and other fields; in terms of military use, UAVs can be used for transportation, refueling, and reconnaissance. , strike and other combat missions. [0003] As a special type of UAV, the vertical take-off and landing UAV can take off and land at zero speed without opening up a special take-off and landing runway. Compared with conventional UAVs, the vertical take-off and landing UAV not only has It has the advantages of flexibility, convenient launch and recovery, good maneuverability, etc., and also has the general functions of conventional drones. Therefore, th...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a vertical take-off and landing unmanned aerial vehicle and its control method. When the unmanned aerial vehicle takes off and lands vertically, the lift fan engine and the tiltable turbofan engine provide lift and auxiliary balance , and control the attitude of the aircraft during the flight. At the same time, through the design of the aircraft structure and aerodynamic layout, the control difficulty of the aircraft is reduced, the internal space of the aircraft is increased, and the control difficulties and load capacity of the existing vertical take-off and landing unmanned aerial vehicles are effectively solved. Small problems, with the advantages of flexible and stable flight, wide application range and large load capacity

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