Amphibious unmanned aircraft with canards and changeable dihedral angles on wings

Abstract

The invention discloses an amphibious unmanned aircraft with canards and the changeable dihedral angles on wings. The amphibious unmanned aircraft with the canards and the changeable dihedral angles on the wings at least comprises an airframe system, a plane control system and a propelling system; the left canard (4B) and the right canard (4A) are added to the airframe system; canard attitude control instructions matched with the left canard (4B) and the right canard (4A) are added to the plane control system; the left canard (4B) and the right canard (4A) are installed at the front end of anairframe; the canard installation distance h is equal to 30%*H, wherein H is the length of the airframe. By improving wing control of the amphibious aircraft to make the angles of the canards change,movement state information including the motion attitude of the amphibious aircraft is guided, and the running capability of the amphibious aircraft in complex weathers and strange hydrological environments is improved.

Description

technical field [0001] The invention relates to an aircraft shape design, more particularly, refers to an amphibious unmanned aircraft with a canard-wing dihedral angle variable. The invention aims at controlling the attitude of the canards through the aircraft control system (or flight control system) in the unmanned aerial vehicle to realize the adjustment of the unmanned aerial vehicle's water entry and exit flight. Background technique [0002] As an aerial and underwater unmanned intelligent mobile platform, the amphibious aircraft has relatively mature maneuverability in the air, but the underwater navigation performance is yet to be mature, especially in areas with complex seabed terrain and existing undercurrents, waves, and swells. Higher requirements are placed on the handling performance. To complete the measurement of some parameters of the ocean, seabed information survey, and fixed-point investigation tasks, it is required that the underwater vehicle should ha...

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.

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