The Flapping Wing Motion Law And Control Technology Research Of The Micro Flapping Wing Flight Vehicle

Micro flapping wing flight vehicle is a kind of imitation bird flying machines,because it is compared with the fixed wing aircraft and rotor wing aircraft has unique advantage,and in the field of military and civilian has very broad application prospects,so the study of the micro flapping wing flight vehicle become to one of the highlights in agro-scientific research in the international institutions.This paper aim at the motion law of flapping wing and the design of control system,The main research content is as follows:First of all,according to the fixed wing aircraft coordinate system theory,the coordinate system of the micro flapping wing flight vehicle was defined,and the relation between movement parameters of the micro flapping wing flight vehicle and the coordinate system has been defined.And according to the euler rotation theory,derived the transformation matrix of these three coordinate.Secondly,studied the motion form of the micro flapping wing flight vehicle,designed the rigid and flexible flapping wing model,and the aerodynamic force is analyzed and calculated for two flapping wing models.Then analyzed the influence of the flapping angle and the rotation time on the aerodynamic characteristics of flapping wing.The results show the rigid wings has two flight modes,the horizontal flight and hovering flight,which may enhanced flight mobility if they work together,and flexible flapping wing structure can greatly enhance the aerodynamic characteristics of flapping wing because of the flapping wing flexible deformation.The aerodynamic force and moment in inertia coordinate system of two kinds of flapping wing model were analyzed,and the parameters which effect the position and the posture of the micro flapping wing flight vehicle has been determined,and deduced the total differential equation of the micro flapping wing flight vehicle movement.Finally,according to the micro flapping wing flight vehicle total differential equation,It decomposes the global control system into three independent control systems,trajectory planner control system,position control system and posture control system.For the position and the posture control system,a method of average aerodynamic forces and moment is designed.According to two kinds of flapping wing model,put forward the corresponding control method,for the two models of the micro flapping wing flight vehicle position and posture control strategies were studied.The application of artificial neural network and the switching control for micro flying vehicle in hovering flight is discussed.Finally,the control systems are simulated and analyzed by the MATLAB.