Taking-off and landing system without undercarriage for high-aspect-ratio solar unmanned aerial vehicle

Abstract

The invention discloses a taking-off and landing system without an undercarriage for a high-aspect-ratio solar unmanned aerial vehicle. When the solar unmanned aerial vehicle takes off, the solar unmanned aerial vehicle and an unmanned vehicle are locked in a butt joint mode through a sliding block clamping mechanism; when the unmanned vehicle automatically runs to a runway starting point, a loaded aircraft is accelerated along a runway; when the taking-off speed is reached, the sliding block clamping mechanism looses and releases the unmanned aerial vehicle, and the solar unmanned aerial vehicle is separated from the unmanned vehicle and automatically takes off and climbs; in the landing process of the solar unmanned aerial vehicle, the unmanned aerial vehicle glides down along a gliding line and is pulled up and drifts down when approaching the ground; and after the unmanned aerial vehicle enters the runway at a certain height, the unmanned vehicle quickly synchronously runs with an unmanned aerial vehicle formation through a guiding system and is kept under the unmanned aerial vehicle, and the unmanned vehicle is automatically in butt joint with the unmanned aerial vehicle when the unmanned aerial vehicle falls to an appropriate height. According to the taking-off and landing system without the undercarriage for the high-aspect-ratio solar unmanned aerial vehicle, the unmanned vehicle is adopted for assisting full-automatic taking-off and landing of the solar unmanned aerial vehicle, the undercarriage can be omitted, the cruising ability of the unmanned aerial vehicle can be improved, the structural design difficulty of the unmanned aerial vehicle is lowered, and the loading capacity is reinforced.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to a gearless takeoff and landing system for a solar unmanned aerial vehicle with a large aspect ratio. Background technique [0002] Solar UAV is an aircraft with large aspect ratio and large wingspan. Its overall layout and energy requirements for flight determine that the ideal design of solar UAV is to strictly control the weight and have no landing gear. Because the overall aerodynamic force of the UAV during the flight is approximately uniformly distributed, and the overall structure is of equal strength, the structural strength is only increased in key positions such as the motor equipment compartment. For solar-powered UAVs with landing gear, firstly, the weight of the landing gear itself is increased, and secondly, the local structural strength requirements for installing the landing gear are very high. Moreover, since the landing gear is a limited number of support poin...

AI Technical Summary

Problems solved by technology

The lack of landing gear design often results in damage to the aircraft during landing

Therefore, there has been no good solution to the take-off and landing problem of solar-powered drones. The existing take-off and landing methods are not suitable for solar-powered drones with large aspect ratios.

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