New configuration tilt rotor aircraft and its flight control method

Abstract

The invention provides a new-configuration tilt-rotor aircraft and its flight control method. The aircraft is provided with a conventional vertical tail and a horizontal tail at the tail of the fuselage, and two wings are arranged on both sides of the middle of the fuselage. The wing includes an inner section wing and an outer section wing connected by a folding mechanism, and a pair of foldable rotors is installed at the end of the outer section wing; the outer section wing can wrap around the inner section wing through the folding mechanism Complete the two actions of folding and rotating at the same time. When the aircraft takes off and lands vertically, it can reduce the hindrance caused by the wings to the downwash flow of the rotor; on the other hand, it can reduce the volume of the body and reduce the projected area. When the aircraft is flying in the air, the wings are unfolded and the rotors are folded, which can effectively reduce the resistance caused by the rotors during high-speed forward flight, thereby increasing the forward flight speed.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a new configuration tilt rotor aircraft and a flight control method thereof. Background technique [0002] Aviation technology and equipment play an important role in both the military and civilian fields. From a military point of view, the lack of air supremacy will expose the military equipment and personnel of the army and navy to enemy air strikes, making it difficult to organize effective attacks and defenses. From the perspective of civilian use, advanced civil aircraft can make people's travel more convenient, and with the emergence of drones, forest firefighting, agricultural plant protection, etc., the aviation field has become more and more important. [0003] Among them, the wing size of traditional fixed-wing aircraft is large, and the overall volume is large, which takes up a lot of space when it is on the ground, and is inconvenient to transport and carry. And take off req...

AI Technical Summary

Problems solved by technology

[0003] Among them, the wing size of traditional fixed-wing aircraft is large, the overall volume is large, and it takes up a lot of space when it is on the ground, and it is inconvenient to transport and carry.

and takeoff requires a runway of some distance

Although the rotorcraft can take off and land vertically, when the speed of the rotorcraft is too fast, the forward blades often generate shock waves, and the backward blades will stall, resulting in a limitation of the maximum forward flight speed

The tilt rotor aircraft is a new type of aircraft that combines the characteristics of fixed-wing aircraft and helicopters. It has the advantages of fixed-wing high-speed cruise and helicopter vertical take-off and landing and hovering. The wing section will block part of the rotor downwash airflow, resulting in a decrease in the lift of the whole machine

Moreover, the airflow under the fixed wing is turbulent during the tilting process, especially the fuselage moment is difficult to balance during the tilting process, which makes it more difficult to control the attitude of the tiltrotor aircraft body

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