Device and method for detecting aerodynamic characteristics of rotor unmanned aerial vehicle

Abstract

The invention discloses a device and method for detecting aerodynamic characteristics of a rotor unmanned aerial vehicle. The device comprises a detecting table, a detecting table rack, a propeller hub arranged at the upper end of the detecting table rack, a brushless motor arranged on the propeller hub, a steering engine used for adjusting the pitch position of the propeller hub and fixed on the detecting table rack, rotors to be detected and a rotor mounting frame used for mounting the rotors. According to the device for detecting the aerodynamic characteristics of the rotor unmanned aerial vehicle, the aerodynamic characteristics of prerotation elevating force and the like of the unmanned aerial vehicle rotors under different parameters can be detected in real time; through the method for detecting the aerodynamic characteristics, a quadratic regressive equation fitted by rotor motion parameters such as rotating speeds, propeller pitch angles and front inclination angles of the unmanned aerial vehicle rotors and the rotor prerotation elevating force can be detected and calculated; and finally, the quadratic regressive equation fitted by rotor prerotation consumed power and the rotor motion parameters is obtained.

Description

Technical field [0001] The invention relates to a device and a method for improving the energy efficiency of an unmanned aerial vehicle and optimizing aerodynamic layout, in particular to a device and a detection method for detecting the aerodynamic characteristics of a rotary-wing unmanned aerial vehicle. Background technique [0002] Traditional agricultural plant protection relies on manual pesticide sprayers to complete operations. The labor intensity is high, the operation cost is high, the utilization rate of pesticides and other resources is low, and the operator has a high probability of poisoning. It can no longer adapt to the modern agricultural development model. The low flying altitude, low drug drift, and high flexibility of drone aerial plant protection operations are now more and more favored by the government and the people. The rotor of the unmanned gyroplane rotates through the action of relative incoming currents to generate lift. It has the characteristics of ...

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Problems solved by technology

[0003] As the Ministry of Agriculture advocates the development of efficient, accurate, environmentally friendly and multifunctional farmland operation equipment, more and more companies are starting to develop agricultural drones, resulting in a large number of different types and parameters of agricultural drones on the market. At the same time, some agricultural drones The disadvantages and shortcomings of the man-machine are also gradually exposed. Among them, the unreasonable aerodynamic layout of the rotor drone makes it more difficult to control the drone, the flight is unstable and the plane crashes, and it is easy to cause property damage and endanger the safety of the operator.

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