Variable unmanned aerial vehicle

Abstract

The invention discloses a variable unmanned aerial vehicle. The variable unmanned aerial vehicle comprises a vehicle body (1), multi-section wings (2) and an empennage (3). The multi-section wings (2) are arranged on the vehicle body (1), the adjacent wing sections of the multi-section wings (2) can relatively stretch out and draw back, and therefore the total elongation of the multi-section wings (2) is changed. The empennage (3) is arranged on the vehicle body (1), and can be far away from or close to the vehicle body (1) relative to the flying direction of the unmanned aerial vehicle. All the wing sections of the variable unmanned aerial vehicle can relatively stretch out and draw back, and therefore the elongation of the wings is changed. When the wing sections relatively stretch out and draw back to change the pneumatic appearance of the variable unmanned aerial vehicle, the gravity center position and the pneumatic characteristic changed by stretching out and drawing back of the wings are adjusted by enabling the empennage to be far away from or close to the vehicle body (1) relative to the flying direction of the unmanned aerial vehicle, and therefore the pneumatic appearance of the variable unmanned aerial vehicle is kept at the optimal state whether the variable unmanned aerial vehicle is in any state.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a variant unmanned aerial vehicle. Background technique [0002] Variant drones refer to unmanned aerial vehicles that change the overall configuration through materials, structures and mechanisms, advanced flow and flight control to adapt to different mission requirements and obtain the best performance in different flight states. . The main way for the deformation of the variant UAV is to change the shape of the wings, and there are several common forms such as telescopic wings, folding wings, inflatable wings and "sliding skin". Among them, the telescopic wing variant UAV is more prominent in changing the wing area and aspect ratio, and has a significant impact on the endurance performance of the aircraft. It is one of the main development directions of variant technology. [0003] However, changes in the aerodynamic layout of the variant affected its stability characteris...

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Problems solved by technology

[0003] However, changes in the aerodynamic layout o

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