Aerodynamic differential device and control method for orthopter wing

Abstract

The invention provides an aerodynamic differential device and a control method thereof for an orthoplane wing, which actively controls the aerodynamic force of the orthoplane wing. The device includes a processor, two sensors, two steering gears and two rocker arms; the device can control the pitching motion of the wings relative to the incoming flow during the flapping process, and control the amplitude of the movement of the wings on both sides. Controlling the aerodynamic force generated by the wings, on the one hand, can eliminate the aerodynamic difference caused by the stiffness difference of the wings during the manufacturing process; Function, reduce the weight of orthopter.

Description

technical field [0001] The invention relates to the field of flapping aircraft design, in particular to an aerodynamic differential device of the flapping wing and a control method thereof. Background technique [0002] Compared with the traditional fixed-wing aircraft, the orthopter is fundamentally different in its flight mode. It relies on the flapping of the wings to generate thrust and lift as power to fly. It is required that the wings of the orthopter have a certain degree of flexibility in order to generate backward aerodynamic force when flapping. The stiffness of the wings will have a great impact on the aerodynamic force. When actually manufacturing an orthopter, it is often difficult The two wings are controlled to have the same stiffness, which causes different aerodynamic forces due to different stiffnesses when the wings flap, which causes the aircraft to generate yaw moments and roll moments, causing the aircraft to deviate from straight-line navigation and r...

AI Technical Summary

Problems solved by technology

[0004] The problem with the current solution is that it is difficult for the wings of an orthopter to achieve the same stiffness in all directions at all positions, and compared with the fixed wing, the orthopter’s flight speed is low, and the rudder is difficult to generate a large enough steering moment

The wing of the orthopter produces a highly unsteady flow, and the aileron cannot be installed on the wing like a fixed-wing aircraft, but can only be installed on the tail, but the wingspan of the tail is limited, and the flapping wing is relatively At a low flight speed, the actual effect of the ailerons is also very limited

Moreover, this passive correction method itself will bring a lot of resistance and reduce the aerodynamic efficiency of the orthopter

Images