气动伺服机构特性的影响因素分析  

Analysis on the Influence Factors of Pneumatic Servo-Mechanism’s Characteristics

作　　者：訚耀保[1] 梁俊哲 原佳阳 曹静 YIN Yaobao;LIANG Junzhe;YUAN Jiayang;CAO Jing(School of Mechanical and Energy Engineering,Tongji University,Shanghai 201804,China;Nanjing Mechanical and Electrical Hydraulic Engineering Research Center,Nanjing 211106,Jiangsu,China)

机构地区：[1]同济大学机械与能源工程学院,上海201804 [2]南京机电液压工程研究中心,江苏南京211106

出　　处：《华南理工大学学报（自然科学版）》2019年第12期17-24,共8页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51775383,51475332);上海航天科技创新基金资助项目(SAST2017093)~~

摘　　要：分析了一种由减压阀、电磁阀、固定节流器、单喷嘴挡板阀、单作用气缸构成的气动伺服机构原理,建立了其数学建模.基于不同海拔高度的工作环境,分析了气动伺服机构特性的影响因素.研究结果表明,供气温度、环境温度、供气压力对伺服机构的特性影响较小;海拔高度上升时,气动系统背压降低,导致伺服机构工作点发生明显变化.The principle of the pneumatic servo that composed of pressure reducing valve,solenoid valve,single-flapper valve,single acting cylinder was analyzed,and its mathematical modeling was also built.The influence factors of pneumatic servo-mechanism were analyzed based on the different altitude.The results show that the air supply temperature,ambient temperature and air supply pressure have small influence on the characteristics of the servo-mechanism.When altitude rises,the back pressure of the pneumatic system decreases,resulting in a significant change in the working point of the servo-mechanism.

关 键 词：气动伺服机构 数值仿真 机构特性 影响因素 

分 类 号：TH138.52[机械工程—机械制造及自动化]