Combined type vertical take-off and landing long-endurance electric unmanned aerial vehicle

Abstract

The invention discloses a combined type vertical take-off and landing long-endurance electric unmanned aerial vehicle, which belongs to the field of unmanned aerial vehicles. According to the combined type vertical take-off and landing long-endurance electric unmanned aerial vehicle, the fuselage adopts the wing body fusion body, the wetted area of the unmanned aerial vehicle can be reduced by removing unnecessary exposed parts of the fuselage, so that the frictional resistance is reduced, and the lift-drag ratio of the unmanned aerial vehicle is increased by reducing parts irrelevant to lift force in the wing body fusion layout. The winglet is adopted, the end plate effect of the winglet is utilized, and the equivalent aspect ratio of the aircraft is increased under the condition that the wingspan increase is small. The double-tail-boom empennage layout is adopted, the lateral stability of the unmanned aerial vehicle can be improved, and the structural support is good. The lift-drag ratio aerodynamic layout is improved through the structural design of the unmanned aerial vehicle, so that the endurance performance of the aircraft is improved.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicles, in particular to a composite vertical take-off and landing long-endurance electric unmanned aerial vehicle. Background technique [0002] In the past ten years, UAV-related technologies have developed rapidly. UAVs have gradually entered the public's field of vision from the original military field, and they have shined brilliantly in the civilian field. With the joining of a large number of researchers, there are more and more types of unmanned aerial vehicles, such as fixed-wing UAVs, rotary-wing UAVs, composite UAVs, etc., and their uses are becoming more and more extensive, widely used in agriculture, forestry, plant protection, power Inspection, meteorological observation, urban environmental monitoring, express freight, aerial photography, etc. For the UAV inspection industry, fixed-wing UAVs have the advantages of fast flight speed, large cruising area, and heavy mission load. Hov...

AI Technical Summary

Problems solved by technology

For the UAV inspection industry, fixed-wing UAVs have the advantages of fast flight speed, large cruising area, and heavy mission load. Hover to obtain images of a continuous location, and the operation is more difficult

Multi-rotor UAVs are small in size and light in weight, can take off and land vertically without a site, and are easy to operate, but their flight speed is small, the flight distance is short, and the efficiency for aerial surveys is very low

The composite UAV has the advantages of both fixed-wing and rotary-wing UAVs. It can not only realize the vertical take-off and landing function without site requirements, but also realize fixed-point hovering to obtain continuous images of a certain place, and can also carry loads. And the flight speed is fast, the cruising distance is long, and the inspection efficiency is high. However, due to the limitation of aircraft batteries, the battery life of the common composite vertical take-off and landing drones on the market is about 60 to 100 minutes, which makes it difficult for long-distance , when performing large-scale inspection missions, multiple sorties have to be used to complete the mission, so how to improve the endurance time of UAVs is of great significance

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