Study On Structure Optimization And Force Sensing Simulation Of Electric Control Load System

The sensitivity of force simulation performance of control load system plays an important role in the simulation effect of flight simulator.A control load system with high quality force control should be able to simulate static and dynamic force feedback.The development of motor and control technology also creates conditions to improve performance of the system.The research in this paper is aimed to improve in the field of engineering application.Nowadays,the lightweight,miniaturization,integration of high quality manipulation force electric control load system is simulated as the goal.In order to complete the whole system design of electric control load system,detailed mechanical design of force loading mechanism is analyzed.After that,the mechanical structure is optimized,and affected factors of the accuracy of the power load control load system are introduced.Considered that the loaded object coupling interference caused by the loading end of active game,system real-time inertia force and damping force may have an important influence on the performance of system load,and probes into perceptual can be improved.In this paper,the electric control system design is firstly introduced.Then,the loading way and load mechanism scheme are analyzed based on the goal of miniaturization,lightweight and integration.In addition,the detailed mechanical design of force loading mechanism is studied.Based on the kinematics and dynamics analysis of load mechanism,type and loading motor model is selected.Furthermore,the force sensor,acceleration sensor,wire rope,and other important components are selected which lay the groundwork for the consequent establishment of the system simulation model.Secondly,the operating load vertical system of dynamic and static force are analyzed and modeled combined with the former system.Based on the establishment of the aircraft longitudinal control system simulation model,actual aircraft dynamic force feeling is simulated.In addition,rope wheel load mechanism structure is established based on rope module in ADAMS.A simulation model of a virtual prototype,in institutions with constraint conditions and the range of movement to drive the power average minimum and driving rod is adopted in order to achieve optimization target of minimizing the maximum angular acceleration value of design research.The mechanical structure of the loading mechanism was analyzed and optimized by three methods of test design and optimization analysis based on ADAMS/ Insight.Finally,the causes of the excess torque are analyzed.It is considered that the excess torque affecting the force tracking performance of the control load system can be divided into generalized excess torque and narrow excess torque.A PID with feed-forward controller is designed to suppress the narrow excess torque caused by the disturbance of the driving stick when the motor is loaded.By compensating the inertial force and damping force generated in real time during the operation of the system,acceleration signal and velocity signal are introduced to suppress the generalized excess torque of the system in manual driving mode.Thus significantly improving the force loading performance of the system and realizing the force sensing simulation with high fidelity of the electric control load system.