Theories Research And Application In The Pneumatic Servo Positioning System

Pneumatic technology , which is applied widely in industry more and more,has a series of obvious advantages and becomes an important of automation. After 1990, pneumatic technology is largely improved beyond traditional methods. As the advanced research field, pneumatic servo technology attracts more and more technicians. Pneumatic servo position technology can realize automatic orientation when cylinder moves in high velocity. Pneumatic mechanical hand is developed too and is beyond traditional methods.Based on transmission automation need of transmission mechanics. A new pneumatic positioning and separating manipulator is developed. The friction of the cylinder and the mass flow rate characteristic are important for pneumatic position control system,the static and dynamic behaviors of the cylinder are analyzed in theory in this paper firstly. The mathematics model of the friction of the cylinder and the flow rate characteristic is founded by experiments. A nonlinear mathematics model of the electric-pneumatic manipulator is presented. Based on this model,compute digital simulation is completed. The infection of the parameter to the system performance is discussed. The response performance of the system to step symbol and wave symbol is gained. Corresponding control strategy is presented for the pneumatic position control system. It is difficult for classic control method to control the pneumatic because it is strongly nonlinear. method to control the pneumatic because it is strongly nonlinear. The research of simulations shows that the control strategy presented can improve the static and dynamic behavior of the system effectively. Aiming to apply a base and quotation for the further analysis and discussion, this paper has built the system's dynamic math model, basing on the analysis of cylinder of thermodynamics. Hence we take a deep look at the characteristic and research of pneumatic to realize the control of orientation at a high accuracy for the servo control system based on this theories foundation and provide guidance to the improvement of system function. We firstly establish the mathematics model with the application of value-control-cylinder. Meanwhile, Make use of the vc++ writing to control the proc-edure from the orientation, moving according to the spirit the servo positioning system shut the wreath extremity installs the principle begs the best appearance feedback increases. Program the control process with the MCGS software; obtain the current data by A/D, D/A collectors with sensor examining the actual location of piston in the cylinder. Then, regulate the different proportion, integral, differential coefficients, and auto-adaptation can be easily obtained. It's widely applied that imitating the system by MATLAB to reach the prolepsis result in engineering practice.