Open AccessMechanical design and dynamics system identification of two-section Flapping Wing Aircraft
Author(s) -
Wei Liao,
Zhixian Ye,
Guanghua Song,
Bowei Yang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/563/3/032010
Subject(s) - flapping , wing , descent (aeronautics) , flight dynamics , lift (data mining) , acceleration , aerospace engineering , flight test , control theory (sociology) , engineering , aircraft flight mechanics , system identification , angle of attack , orientation (vector space) , flight simulator , simulation , computer science , aerodynamics , data modeling , artificial intelligence , physics , mathematics , control (management) , software engineering , classical mechanics , data mining , geometry
The mechanical design and system identification of the Flapping Wing Aircraft (FWA) has always been a problem. In this paper, we design a two-section FWA through the study of bird flight, where the wing structure is divided into the inner wing and outer wing, which can imitate the flight of birds. When flapping upward, the wings can be folded to reduce resistance, and when flapping downward, the wings can be expanded to increase lift. This flying method can improve the flight efficiency. The aircraft we designed has achieved flexible flight under human operation. Aiming at the complex problem of dynamic modeling of FWA, this paper proposes a linear system model by analyzing the force of the aircraft.We use the collected flight data to train the system model. The training of the model uses the gradient descent method to minimize the loss function, and the accuracy of the model is verified with the test data. The experimental results show that the system model can accurately calculate the acceleration, velocity, angle velocity and orientation of the aircraft based on the current control input.