Fixed-wing unmanned aerial vehicle capable of enhancing pitching control performance of dwelling tail section

Abstract

The invention relates to a fixed-wing unmanned aerial vehicle capable of enhancing pitching control performance of a dwelling tail section. On the basis of a traditional fixed-wing unmanned aerial vehicle configuration, a pair of small power propeller assemblies is additionally arranged at the empennage part; the assembly is composed of a motor mounting base, a small brushless motor and blades. The two power propeller assemblies rotate in the clockwise direction and the anticlockwise direction respectively in the working process, so that upward pull force and downward pull force are generatedat the empennage part respectively, and the pair of pull force enables the unmanned aerial vehicle to generate head lowering moment and head raising moment relative to the gravity center of the unmanned aerial vehicle. At the tail section of the dwelling machine; due to the fact that the flight speed is low, the control rudder effect of an elevator of a traditional fixed-wing unmanned aerial vehicle is very low, the pitching posture is difficult to control accurately, the fixed-wing unmanned aerial vehicle can provide high pitching control torque through the power propeller assembly, and thenthe problem that the pitching posture of the traditional fixed-wing unmanned aerial vehicle at the perching tail section is difficult to control accurately is solved.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a fixed-wing unmanned aerial vehicle used for landing maneuvers. Background technique [0002] Since the Wright Brothers invented the first airplane, human beings have been able to fly in the air like birds, but they have not yet been able to achieve free habitat like birds. The term perched comes from the study of bird flight in nature. The characteristics of perch make it unnecessary to fly in the air all the time, and can flexibly dock on branches and the ground to save energy consumption, find and hunt prey. If a drone can quickly dock on utility poles, building exterior walls, tree branches, etc. like a bird, it can further increase the time spent in the air, and then realize all-weather intelligence collection, surveillance, and investigation. For reconnaissance missions, sustained airborne presence in theater is critical to mission accomplishment, especia...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the difficulty of pitching attitude control caused by the low flight speed and low efficiency of rudder surface execution of traditional fixed-wing UAVs at the end of the habitat

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