Design method of reactive torque rudder structure

Abstract

The invention belongs to the field of aircraft structure design, and in particular relates to an anti-torque rudder structure design method. A small single propeller ducted UAV anti-torque rudder structure design method, characterized in that it determines the anti-torque rudder structure design by identifying the engine parameters and anti-torque rudder parameters, and obtains the required anti-torque rudder The rudder surface area Sinv can determine the length and width of the anti-torque rudder according to the internal duct area of ​​the UAV. Through theoretical and experimental demonstration, this method can be used to design the anti-torque rudder with reasonable structure and practical application, so as to realize the balance of UAV torque.

Description

technical field [0001] The invention belongs to the field of aircraft structural design, and in particular relates to a structural design method of an anti-torque rudder. Background technique [0002] The thrust provided by the engine of the small single-blade ducted UAV realizes flight actions such as vertical take-off and hovering. At the same time, the rotation of the rotor also generates a torque around the central axis of the vertical aircraft, which will seriously affect the stability of the UAV. and reliability. [0003] Single-propeller fixed-wing aircraft overcome the influence of propeller spin by shifting the center of gravity or adjusting the thrust line of the engine, and single-rotor helicopters use the tail rotor to balance the torque generated by the main propeller. Due to its own structural characteristics, small single-blade ducted UAVs usually use a set of anti-torque rudders to achieve torque balance. Deflection in the same direction, under the action o...

AI Technical Summary

Problems solved by technology

Although this design method and structural scheme are very simple, it will cause relatively large aerodynamic resistance, which will virtually reduce the carrying capacity and flight stability of the UAV.

In addition, due to the lack of strict parameter identification and calculation, in order to achieve the anti-torque effect, the rudder surface area can only be increased as much as possible, which also causes a waste of the limited internal space of the aircraft

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