机械工程

气动伺服机构特性的影响因素分析

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  • 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
訚耀保(1965-),男,教授,主要从事极限环境下的流体控制、液压、气动基础理论,飞行器能源、舵机与伺服机构,高速气动控制研究.

收稿日期: 2018-03-21

  修回日期: 2019-05-25

  网络出版日期: 2019-11-02

基金资助

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)

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

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  • 1. School of Mechanical and Energy Engineering,Tongji University,Shanghai 201804,China; 2. Nanjing Mechanical and Electrical Hydraulic Engineering Research Center,Nanjing 211106,Jiangsu,China
訚耀保(1965-),男,教授,主要从事极限环境下的流体控制、液压、气动基础理论,飞行器能源、舵机与伺服机构,高速气动控制研究.

Received date: 2018-03-21

  Revised date: 2019-05-25

  Online published: 2019-11-02

Supported by

Supported by the National Natural Science Foundation of China( 51775383,51475332) and Shanghai Aerospace Science and Technology Innovation Foundation( 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.

本文引用格式

訚耀保, 梁俊哲, 原佳阳, 等 .

气动伺服机构特性的影响因素分析
[J]. 华南理工大学学报(自然科学版), 2019 , 47(12) : 17 -24 . DOI: 10.12141/j.issn.1000-565X.180128

Abstract

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 fac- tors of pneumatic servo-mechanism were analyzed based on the different altitude. The results show that the air sup- ply temperature,ambient temperature and air supply pressure have small influence on the characteristics of the ser- vo-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.
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