Amphibious unmanned aerial vehicle based on duct vector propulsion

An unmanned aerial vehicle and vector propulsion technology, applied in the shape field of amphibious aircraft, can solve the problems of high engine cost, unadjustable power direction, fixed fuselage structure, etc. simple effect

Active Publication Date: 2018-11-02
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current amphibious aircraft is faced with problems such as vertical take-off and landing for take-off and entry into the water, which is not flexible enough, and has a large power demand, which makes the cost of the engine high. At the same time, the power of the aircraft is mostly propeller or turbojet engine. The direction is not adjustable, and the amphibious performance is not good
Moreover, the structure of the fuselage is fixed, and the same structure is difficult to solve where there are contradictions between the water and air environments.

Method used

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  • Amphibious unmanned aerial vehicle based on duct vector propulsion

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Embodiment 1

[0051] The ducted fans (3, 4) constitute the power assembly. The tension lines of the ducted fans (3, 4) are pulled below the center of mass during the take-off phase, and the tension lines of the ducted fans (3, 4) pass through the center of mass during the flight phase to maintain balance, about 15° from the horizontal (that is, the delta in the submerged attitude 2 Equal to δ at 15° and flight attitude 4 equal to 15°), after reaching a certain height, the ducted fans (3, 4) are tilted, the tension line is pulled above the center of mass, the nose is lowered to fly forward, and after being plunged into the water, the ducted fans (3, 4) The tension line remains horizontal, counteracts the moment produced by the buoyancy, and provides forward thrust, and the elevators (6A, 6B, 6C) and the rudder 7 are used for lifting, steering and attitude control.

[0052] The amphibious unmanned aerial vehicle based on duct vector propulsion of the present invention adopts a simple purely ...

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Abstract

The invention discloses an amphibious unmanned aerial vehicle based on duct vector propulsion. The amphibious unmanned aerial vehicle at least comprises a machine body system, an aircraft control system and a propulsion system, wherein a left dust fan (4) and a right duct fan (3) which are arranged at the two sides of the machine body through a cabin rod are added in the machine body system; a duct posture control instruction matched with the left duct fan (4) and the right duct fan (3) are added in the aircraft control system; the installation distance h of the duct fan on the machine body isa product of 30 percent and H; the H represents the machine body length. By controlling the output direction of the duct vector, the posture and the power of the aircraft are controlled; the navigation water inlet and water outlet and submerged navigation functions of the aircraft can be realized, so that the operation capability of the amphibious aircraft in the complicated meteorologic and strange hydrological environment can be improved.

Description

technical field [0001] The invention relates to the shape of an amphibious aircraft, more particularly, refers to an amphibious unmanned aircraft based on duct vector propulsion. Background technique [0002] Amphibious unmanned aerial vehicle is a kind of unmanned intelligent mobile platform in the air and underwater. The maneuverability in the air has been relatively mature, and the navigation performance in the water has yet to be mature. Most of the underwater driving devices of the aircraft use propeller propulsion devices. At present, the traditional underwater vehicles propelled by propellers are equipped with a tail rotor and multiple sets of rudder blades. They control the attitude and position of the underwater vehicle by controlling the motor and steering gear to change the propeller speed and the rudder angle of the rudder blade. However, this attitude control method and the traditional underwater aircraft shape increase the self-load of the aircraft, and the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C35/00
CPCB64C35/006B64U10/25B64U30/20B64U50/14
Inventor 梁建宏黄晋国王赫徐大新王田苗陈泓宇杨兴帮侯涛刚
Owner BEIHANG UNIV
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