Ornithopter wing aerodynamic differential device and control method thereof

Abstract

The invention provides an ornithopter wing aerodynamic differential device and a control method thereof to actively control aerodynamic forces of ornithopter wings. The ornithopter wing aerodynamic differential device comprises a processor, two sensors, two steering engines and two swing arms. The ornithopter wing aerodynamic differential device can actively control the aerodynamic forces of the wings by controlling pitching movement of opposite incoming flows generated in the flapping process of the wings and controlling the amplitude of the movement of the wing on the two sides, so that on one hand, aerodynamic force difference caused by stiffness difference between the wings in the manufacturing process can be eliminated, and on the other hand, the flying direction can be changed through the aerodynamic force difference between the two wings so as to substitute the role of a rudder and reduce the weight of an ornithopter.

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