3维离心环境下射流管伺服阀的零偏特性  

Zero Deviation Characterization of Jet Pipe Servo Valve in Three-Dimensional Centrifugal Environment

作　　者：訚耀保[1] 王玉[1] 

机构地区：[1]同济大学机械与能源工程学院,上海200092

出　　处：《上海交通大学学报》2017年第8期984-991,共8页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目(51475332);航空科学基金项目(20128038003)资助

摘　　要：针对射流管伺服阀在离心环境下的零偏问题,建立了3维离心环境下射流管伺服阀零偏特性的数学模型,分析衔铁组件偏心距、电磁力矩系数、反馈杆刚度、运动部件质量等结构参数对射流管伺服阀零偏特性的影响,提出了减小3维离心环境下射流管伺服阀零偏值的措施.结果表明:射流管伺服阀离心零偏值与离心加速度值呈线性关系;衔铁组件偏心距、电磁力矩系数与运动部件质量是影响射流管伺服阀离心零偏的主要因素,反馈杆刚度对零偏影响不大;采用合适的衔铁组件偏心距或者滑阀质量与衔铁组件质量之比可实现各加速度值下的离心零偏均为零.采用某型射流管伺服阀进行了实验验证,理论结果与实验结果一致.In view of the zero deviation problem of jet pipe servo valve under centrifugal environment, a mathematic model of the zero deviation characterization of the jet pipe servo valve under three dimensional centrifugal environment was built. The factors to zero deviation of the jet pipe servo valve including armature component eccentricity, electromagnetic torque coefficient, feedback rod stiffness and moving part quality were analyzed. The measures for decreasing zero deviation value of the jet pipe servo valve under three dimensional centrifugal environment were put forward. The result shows that the zero deviation value has a linear relation with the centrifugal acceleration value. Armature component eccentricity, electro magnetic torque coefficient and moving part quality are the main affecting factors while feedback rod stiffness has little effect. The centrifugal zero deviation can be 0 at each centrifugal acceleration by adjusting appropriate armature component eccentricity or the ratio of spool quality to armature component quality. The verification experiment was carried out by using some type of the jet pipe servo valve. The theoretical result is in good agreement with the experimental data.

关 键 词：3维离心环境 射流管伺服阀 零位特性 离心加速度 线性关系 

分 类 号：V223[航空宇航科学与技术—飞行器设计] TH138.52[机械工程—机械制造及自动化]