Structure arrangement method of well-shaped reaction torque rudder

Abstract

The invention belongs to the field of structure design of an aircraft and particularly relates to a structure arrangement method of a well-shaped reaction torque rudder. The invention provides an arrangement method of a reaction torque rudder, which can be applied to a small-size ducted type unmanned aerial vehicle. Based on one well-shaped reaction torque rudder, the structure arrangement method disclosed by the invention can be used for obtaining the well-shaped reaction torque rudder through determining the airfoil profile of the reaction torque rudder, simulating the pneumatic arrangement of the reaction torque rudder, designing a distance between the reaction torque rudder and a paddle disc, designing a combining manner of a combined rubber and designing the structure of the reaction torque rudder; and theories and experiments show that the reaction torque rudder which has a reasonable structure and meets practical application can be conveniently designed by using the method.

Description

technical field [0001] The invention belongs to the field of aircraft structure design, and in particular relates to a structural layout 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 of...

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Problems solved by technology

[0004] At present, the layout of small ducted UAV anti-torque rudders has not yet formed a unified scheme and overall design ideas. Most of the research teams at home and abroad have not conducted detailed analysis and demonstration on the uniform distribution of anti-torque rudders. The influence of parameters such as the number of parallel rudder blades, the staggered angle of rudder blades, and the distance between parallel rudder blades on its overall aerodynamic characteristics has not yet been clearly analyzed.

As a result, most of the current layouts of ducted UAV anti-torque rudders cannot make full use of their aerodynamic characteristics, and cannot fully improve the overall aerodynamic characteristics and stability of UAVs.

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