气动位置伺服系统的建模与仿真

本文针对气动位置伺服系统的一些关键技术进行了研究,建立了系统数学模型,包括比例阀非线性特性的描述、非线性摩擦力的表示、以及执行元件在端位的机械限位动态过程的描述等,并采用Matlab/Simulink模块建立了系统仿真模型,以摆动气缸位置伺服系统为例,进行了仿真和实验数据对比。结果表明该数学模型较为精确,基于该数学模型的Simulink仿真模型较好的反映了气动位置伺服系统的特性,证明所建模型的合理性。

Modeling and Simulation for Pneumatic Position Servo System

In this paper,on the pneumatic position servo system,a number of key technologies have been studied to establish the system mathematical model,which include the exp ression of the p roperties of the p roportional valve,the exp ression of the nonlinear friction,and the descrip tion of the dynamic of the actuatorps limited motion at the ends.The method of establishing the system simulation model in Matlab/Simulink environmentwas given.Taking the pneumatic rotary actuator position servo system as the example,t...