Vertical take-off and landing miniature air vehicle with variable X-type wing

Abstract

The invention relates to a vertical take-off and landing miniature air vehicle with a variable X-type wing. The vertical take-off and landing miniature air vehicle comprises a fuselage, a wing, a motor, an airscrew and a take-off and landing device, wherein the wing is bilaterally symmetrical about a body shafting XOZ plane and divided into an upper part and a lower part; the upper wing turns upwards, and the lower wing turns downwards, and the upper wing and the lower wing are respectively mounted on the fuselage; the upper wing and the lower wing on the same side of the air vehicle are distributed in an actual angle; each of the upper wing and the lower wing has a trapezoidal proportion and a sweep back angle; the wing adopts a negative bending wing profile, the front part of the wing has positive camber, and the rear part of the wing has negative camber; an angle of attack corresponding to zero pitching moment is a positive value. The vertical take-off and landing miniature air vehicle can stably realize vertical take-off and landing, level flight, hovering and switching of level flight and hovering, has the characteristics of simple power device, full energy utilization, high aerodynamic efficiency and good controllabitity under each flight condition and large speed coverage, and is suitable for being used as an air vehicle platform of a miniature unmanned aerial vehicle system.

Description

technical field [0001] The invention relates to a micro-aircraft, in particular to a tail-sitting variable body X-shaped wing with vertical take-off and landing, level flight and hovering capabilities, which has an upper and lower part arranged in an X-shaped wing. aircraft. Background technique [0002] The concept of Micro Aerial Vehicle (MAV) was first proposed by the United States in the 1990s. Today, the worldwide research boom around MAV has continued for more than 20 years. With the improvement of the technical level and the accumulation of use experience in the international scope, a series of breakthroughs have been made in key technologies in various aspects. MAV systems with certain mission capabilities have appeared, and people's understanding and demand for micro air vehicles have also entered a new stage. stage. At present, diversified task functions have become a new trend in the development of MAVs. This requires the MAV to not only be able to cruise at a ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a variable body X-type wing vertical take-off and landing micro-aircraft, which solves the contradiction between the weight, reasonable utilization of motor power and maneuverability requirements in the pr

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