Simulation Platform Research Of Pneumatic Position Systems Based On MATLAB/SIMULINK

In order to deeply study its dynamic and static characteristic and control algorithm of apneumatic positioning system, it’s quite essential to find a simulation system which can showus the performance. Matlab/Simulink has become the most popular computer tool formodeling and simulinking due to its functions of modular modeling and visualized simulationbased on graphics objects. It’s flexible, widely used, interface-friendly, high visualized andeasily expanded when simulating the pneumatic orientation on the Matlab/Simulink platform,so it does a great favor to the researchers.The paper talks about building a simulinking platform for the pneumatic positioningsystem which is repeatable and flexibility expanded. Firstly, the modular modeling thought isintroduced and the whole system is divided into three subsystems that can be divided intodifferent modules further. Based on the analysis of the subsystems, a simulinking model isestablished.Secondly, we build the simulink framework of the pneumatic positioning system byusing the hierarchical design method based on graphics modules, while the Matlab/Simulinksenior graphic simulation environment serves as the development platform. Using simulink’s“top-down”design flow to modulate mathematically the system, and then optimize it in orderto realize its repeatability and expansibility and also to build the self-defined module base. It’scertain to meet all these problems when building the simulink platform, for they are inrelationship with the function realizing, readability and efficiency, etc. Besides, the paperdiscusses the resources and properties of the parameters in the system. And a simulinkplatform is built by taking advantage of the module base both self-defined and system-carried.Using the simulink interactive graphic simulation environment, a visual interface based on themodel is designed and built.Finally, design the experiment on the basis of the fluid laboratory equipment. TheKing-view software gives access to the data collection and storage while making theacquisition card and industrial PC as tools. In the experiment, we measure the stick-slipfriction coefficient and the open equivalent section area. And 50% and 100% step input aregiven respectively to test the dynamic characteristics of the platform. Besides, the experimentwaveform and response are given as well to analyze the experiment results and simulationresults. It shows that the simulink platform is able to reflect the property of the real systemwith its complete modules, versatility, convenience to use, better scalability and adaptability.