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Flight method for improving application performance of solar power unmanned aerial vehicle

A technology of solar drones and application performance, applied in the aerospace field, can solve the problems of inability to achieve major breakthroughs, and the performance improvement effect of solar drones is not obvious, so as to reduce the laying area and the weight of energy storage batteries , The structure is difficult to realize and the effect is difficult to manufacture

Active Publication Date: 2013-06-05
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measures depend on the progress of related technologies, which will consume a lot of time, manpower and material resources, and cannot achieve major qualitative breakthroughs in the short term, and the effect of improving the performance of solar-powered drones is not obvious.

Method used

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  • Flight method for improving application performance of solar power unmanned aerial vehicle
  • Flight method for improving application performance of solar power unmanned aerial vehicle

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Embodiment

[0030] Design requirements: the flight time is from the vernal equinox (March 21) to the autumnal equinox (September 23), the payload is 200kg, the power required for the payload is 2kw, the working altitude is 20km, and the wing aspect ratio is 25.

[0031]For a solar-powered UAV flying alone, it needs to maintain a flight height of 20km throughout the day, requiring a wing area of ​​634㎡, a length of 126m, and a total weight of 2858kg; a solar-powered UAV with a dual-aircraft formation can descend when it is not working. At a height of 15km (h2), the wing area of ​​a single solar-powered UAV is 215㎡, the extension length is 73m, and the total weight of the UAV is 1107kg, which is 66%, 42% and 61% smaller than that of a solar-powered UAV flying alone. Even if the wing area and total weight of the two solar drones flying in formation are added, the wing area and total weight are 32% and 23% smaller than those of the solar drone flying alone.

[0032] The maximum altitude of a ...

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Abstract

The invention discloses a flight method for improving application performance of a solar power unmanned aerial vehicle. The flight method for improving the application performance of the solar power unmanned aerial vehicle comprises the following steps: organizing a plurality of solar unmanned aerial vehicles into terms, regarding 24 hours as a period, in the period, each solar unmanned aerial vehicle successively experiences ' high altitude cruise-descending-low altitude cruise-climbing' four flight steps, the solar unmanned aerial vehicle starts working load to conduct a corresponding mission in the 'high altitude cruise' step, the working load is closed at the other steps; and each solar unmanned aerial vehicle achieves seamless joint at a moment off the 'high altitude cruise' step. The flight method for improving the application performance of the solar power unmanned aerial vehicle not only guarantees working height and time of the load, but also improves the stable working height of the solar unmanned aerial vehicle, reduces the size of the unmanned aerial vehicle, lowers production manufacturing difficulty and production manufacturing cost and improves feasibility of the solar unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the field of aerospace technology, relates to the application of a solar unmanned aerial vehicle, in particular to a flight method for improving the application performance of a solar unmanned aerial vehicle. Background technique [0002] Solar UAV is a new type of aircraft with great development potential. It is powered by solar energy, does not need to carry any fuel, and can theoretically achieve permanent air flight. During the day, relying on the photovoltaic cells laid on the surface of the aircraft, the solar drone converts solar energy into electrical energy, a part of the electrical energy is directly used by the propeller and onboard electrical equipment to maintain the normal flight of the drone, and the other part of the electrical energy is stored in the energy storage battery. Medium, for night use. The energy power system takes one day as a cycle and does not need to consume any fuel, so the solar-powered UAV h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
Inventor 马东立包文卓乔宇航
Owner BEIHANG UNIV
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