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.
作者
訚耀保
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)
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
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)~~
关键词
气动伺服机构
数值仿真
机构特性
影响因素
pneumatic servo
numerical simulation
mechanism characteristics
influence factors
