Research On Electric Drive Control Loading System Of Helicopter Simulator

In the aviation field,the helicopter has a unique advantage over ordinary fixed-wing aircraft,it can meet the special flight requirements,such as low-speed flight,short-distance transportation,so it is widely used in military and civilian fields.However,at present,the development of helicopter in our country is relatively backward and there are many problems need to be overcame,such as the shortage of helicopter flight training resources,long research and development cycle,and high risk and so on.In this case,the independent research and development of helicopter simulator is of great significance to promote the development of aviation industry in China.Control loading system,as the important interface for human-computer interaction of the helicopter simulator,plays a vital role in the flight simulator.The research on control loading system with high-fidelity is the foundation of the flight simulator.At present,the development of the research on flight simulator is relatively backward in China,as well as,foreigners block the cutting-edge technology towards China and control the aviation simulation market of China.In such circumstances,this topic research on how to apply the force feedback technology of robot to the helicopter control loading system to realize the force feeling of the joystick.Based on the requirements of the real helicopter joystick,this paper designs the electric control loading system,and establishes the mathematical model of the system.Then we research on the control strategy,such as force closed-loop control and force-position closed-loop control,to load force signal to joystick.On this basis,we use fuzzy adaptive PID control strategy to optimize the system.Finally,we program to realize the control strategies using Visual Studio C++ 2013 and Qt 5.7.For the electric control loading system,this paper mainly carried out the following aspects:1.Designing the mechanical structure and electrical control system of the joystick according to the control requirements of the helicopter.2.Establishing the Cartesian coordinate system for the electric control loading system,analyzing the kinematics and dynamics property of the designed structure to calculate kinematics and dynamics equation.3.Setting up the force closed-loop control model according to the mathematical model of the control loading system,then use force-position closed-loop control to avoid the shock of the system.Finally,use fuzzy adaptive PID control to achieve optimization.4.Building the electric control loading system,and using Visual Studio C++ 2013 and Qt 5.7 to program to realize the control,and verify the feasibility of the control method.