Ultra-light vertical tail structure of small unmanned aerial vehicle

Abstract

The invention provides an ultra-light vertical tail structure of a small unmanned aerial vehicle. On the premise that the aerodynamic load strength requirement and load transmission are met, the structural bearing capacity is fully exerted, and the structure has the advantages of being small in overall weight, simple in manufacturing process and high in reliability. The vertical empennage bears main load through the main beam and the two auxiliary beams, a vertical empennage airfoil is formed through the skin, and aerodynamic force is transmitted into an inner frame of the vertical empennage through the skin. A D-shaped box structure is designed in structural details, the torsion resistance of the vertical tail wing is improved, the matching relation of all the components is designed, the appearance transition of the vertical tail wing is smooth, and aerodynamic resistance is reduced.

Description

technical field [0001] The invention relates to a vertical tail structure of a small unmanned aerial vehicle. Background technique [0002] The invention is mainly applied to small unmanned aerial vehicles, and the unmanned aerial vehicle which is sensitive to the weight of the whole aircraft can reduce the weight of each component as much as possible in the process of design and manufacture. The vertical tail of a small UAV is an important structure that provides lateral and heading stability for the aircraft, and its reliability directly affects the flight safety of the UAV. Under the condition that the rest of the UAV's components do not change, the increase in the weight of the tail will reduce the stability margin of the UAV, making the UAV tend to be statically unstable. Usually, increasing the weight of the UAV can solve such problems. However, this will inevitably lead to an increase in the weight of the whole machine. For the UAV whose tail is farther away from the...

AI Technical Summary

Problems solved by technology

In the case that the rest of the UAV components do not change, the increase in the weight of the tail will reduce the stability margin of the UAV, making the UAV tend to be statically unstable. Usually, increasing the counterweight of the UAV can solve such problems However, this will inevitably lead to an increase in the weight of the whole machine. For drones whose tail is farther from the center of gravity of the aircraft, the front counterweight will also increase exponentially, which is difficult for drones that are sensitive to the weight of the whole machine. accept

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