北京交通大学学报2018，Vol.42Issue(1)：120-126,7.DOI:10.11860/j.issn.1673-0291.2018.01.018
三余度伺服阀前置级不一致性影响研究
Study on the influence of prestage inconsistency of triplex redundance servo valve
摘要
Abstract
The prestage of triplex redundance servo valve may be inconsistent and thus it has impact on the static and dynamic characteristics of the servo valve.A complete mathematical model of the triplex redundance servo valve with the prestage fluid power and dynamic characteristics of slide valve is presented.The influence of nozzle-baffle parameter inconsistency on the whole valve characteristic is analyzed.The three parameters considered are the stiffness of the spring tube,the stiffness of the force feedback rod and the vertical distance from the center of the spring tube to the center of the nozzle.The simulation results show that the dynamic performance of the servo valve is less affected when the parameter deviation is less than 5 ％,and the dynamic and static performance of the servo valve has a linear relationship with the parameter deviation.When the parameter deviation continues to increase,the performance of the servo valve is accelerated,which verifv approximately the triple relation with the parameter deviation.关键词
流体传动与控制/三余度伺服阀/动态性能/误差分析Key words
fluid power transmission and control/triplex redundance servo valve/dynamic characteristics/error analysis分类
信息技术与安全科学引用本文复制引用
陈博,延皓,仇立波,姚磊,李红岩..三余度伺服阀前置级不一致性影响研究[J].北京交通大学学报,2018,42(1):120-126,7.基金项目
国家国际科技合作专项(2012DFG1490) （2012DFG1490）
中央高校基本科研业务费专项资金(2015JBC022,2017JBM051)International S&T Cooperation Program of China(2012DFG1490) （2015JBC022,2017JBM051）
Fundamental Research Funds for the Central Universities(2015JBC022,2017JBM051) （2015JBC022,2017JBM051）
