elastic wing flapping wing aircraft

Abstract

The invention provides an ornithopter with elastic wings. The ornithopter comprises a main fuselage body, a flapping wing transmission mechanism, the left elastic wing, the right elastic wing, the elastic tail wing and an adjustable supporting three-point-type undercarriage; the flapping wing transmission mechanism is fixedly installed on the main fuselage body and coincides with the gravity center of the main fuselage body; the left elastic wing and the right elastic wing are installed in the positions, on the two sides of the axis of the main fuselage body, of power output interfaces of the flapping wing transmission mechanism and are in driving connection with the flapping wing transmission mechanism; the elastic tail wing is fixed to the tail of the main fuselage body; and the adjustable supporting three-point-type undercarriage is fixed to the lower portion of the main fuselage body. According to the ornithopter with the elastic wings, flight lift force, the gravity center of thrust and the gravity center of the overall ornithopter coincide, and the ornithopter can do unpowered gliding and can glide in a wide flat terrain and land safely even through the driving force is lost; and the structure of the ornithopter is simple, can be suitable for large-size man carrying and freight transporting aerial vehicles and can be also suitable for small and medium-size unmanned aerial vehicles. The ornithopter with the elastic wings is high in safety, good in flight flexibility and high in flight load capacity.

Description

technical field [0001] The invention relates to the technical field of bionic flapping-wing aircraft, in particular to an elastic-wing flapping-wing aircraft. Background technique [0002] The flapping wing aircraft is a kind of aircraft that can fly by flapping its wings up and down. During the flapping process, the wings generate lift and thrust at the same time, and the flight steering is realized through the wings. The tail assists the steering and can realize vertical take-off. Drop, hover in the air. [0003] Compared with the traditional aircraft, the current flapping-wing aircraft has many advantages, but it also has its defects, that is, the flapping of the wings during the flapping process brings obvious tremors to the fuselage. This is the flapping-wing aircraft. There is currently no good way to solve the problem, especially for large manned orchid-wing aircraft. During the flapping flight, the inertia and reaction force of the flapping wings are transmitted to...

AI Technical Summary

Problems solved by technology

The trembling of the fuselage is not only not conducive to flight control, but also makes the comfort of manned driving very poor. It will also affect the strength of various parts of the fuselage, causing problems such as fatigue and fracture of connecting fasteners.

[0004] At present, the flapping action of manned flapping-wing aircraft and most small unmanned flapping-wing aircraft is generally very simple. It can only make a simple flapping pattern of flapping up and down. The flight flexibility is not enough, and it can only be controlled by the tail. Flight steering, there is no way to change the flapping mode to achieve more flexible flight steering control

[0005] At present, the wings of large manned orthoplanes are too heavy and have complex structures; most of the wings of small unmanned orthoplanes are made of cloth, film, plastic and other materials, and the strength and service life of the wings are not enough; The mechanism is not flexible and compact enough; the fuselage structure is too heavy... and other problems, so that there is no truly practical orthopter that can become a modern mainstream aircraft

[0006] After searching, it was found that the British "Flight International" website reported on August 31, 2006] On July 8, 2006, the Institute of Astronautics (UTIAS) of the University of Toronto, Canada successfully realized the separation of a manned Ornithopter for the first time. The aircraft successfully left the runway and flew forward at a speed of about 89 km / h at a height of about 1 meter above the ground for 10 seconds, with a total flight distance of 330 meters. The total blanking time is 14 seconds, but the flapping wing trembles severely during the flight, the flight controllability is not flexible enough, the wings are too heavy, the transmission mechanism is not compact and light enough, and it cannot take off and land vertically or hover in the air

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