Electro-Hydraulic Servo-Valve and Motion and Control Loading of Full Flight Simulator

The present thesis is on the subject of electro-hydraulic servo-valve (EHV), and motion and control loading of a flight simulator with EHV. The fundamentals of EHV and hydraulic control systems are discussed in Part A. An electro-hydraulic servo-valve (MOOG 760 series) and a position servo control were constructed using an EHV and a linear hydraulic double-ended cylinder, which was modeled mathematically and implemented symbolically by Simulink. Part B examines the motion and control loading systems of a full flight simulator. Motion simulation algorithms and implementation are discussed in moderate depth. As a generic example, a typical elevator control loading channel is represented in state space; whose stability, linkage compliance and control scheme implementation analysis are conducted in detail by means of MATLAB. The same elevator control loading channel was symbolically modelled through Simulink, based on the EHV/actuator model that was developed in Part A. The results of different control schemes are discussed and compared.

Electro-Hydraulic Servo-Valve and Motion and Control Loading of Full Flight Simulator

The present thesis is on the subject of electro-hydraulic servo-valve (EHV), and motion and control loading of a flight simulator with EHV. The fundamentals of EHV and hydraulic control systems are discussed in Part A. An electro-hydraulic servo-valve (MOOG 760 series) and a position servo control were constructed using an EHV and a linear hydraulic double-ended cylinder, which was modeled mathematically and implemented symbolically by Simulink. Part B examines the motion and control loading systems of a full flight simulator. Motion simulation algorithms and implementation are discussed in moderate depth. As a generic example, a typical elevator control loading channel is represented in state space; whose stability, linkage compliance and control scheme implementation analysis are conducted in detail by means of MATLAB. The same elevator control loading channel was symbolically modelled through Simulink, based on the EHV/actuator model that was developed in Part A. The results of different control schemes are discussed and compared.

Experimental Simulation and Verification of Position Servo Control of Mechanical Rodless Cylinder

In order to improve the position control accuracy of rodless cylinder, the valve control cylinder system based on pneumatic proportional servo is studied deeply. According to the working principle of the mechanical rodless cylinder control system, under the condition of uniform speed, the driving voltage of the proportional valve is changed to measure multiple sets of friction force and corresponding velocity data. Analyzed the physical structure of each component in pneumatic system, established the mathematical model of pneumatic system, and introduced MATLAB system identification toolbox to identify the parameters of the transfer function. and the experiment verifies its correctness.