导弹油箱用数字比例阀压力特性研究  

Research on Pressure Characteristics of Digital Proportional Valve Used for Missile Fuel Tank

作　　者：罗定钊 焦志刚[1] 孙钦翰 LUO Ding-zhao;JIAO Zhi-gang;SUN Qin-han(School of Equipment Engineering,Shenyang Ligong University,Shenyang 110168,China;Shenyang Aerospace Xinguang Group Co.,Ltd.,Shenyang 110043,China)

机构地区：[1]沈阳理工大学装备工程学院,辽宁沈阳110168 [2]沈阳航天新光集团有限公司,辽宁沈阳110043

出　　处：《液压气动与密封》2023年第8期52-57,共6页Hydraulics Pneumatics & Seals

摘　　要：气动减压阀是导弹发动机推进系统的重要组件,其出口压力稳定性直接影响挤压推进剂的性能与稳定性,进而影响推进系统的整体性能。为研究一种导弹油箱增压系统用新型数字比例阀的出口流量对其静态特性的影响,通过建立数学模型,采用仿真与试验结合的方法,得到流量大小对出口压力稳定性影响存在偏差,在0.2 L/s到0.5 L/s之间的出口流量下,反馈压力的跟踪情况更好,出口压力偏差小于0.01 MPa的结论,为导弹油箱用气动减压阀设计提供新的思路。The pneumatic pressure reducing valve is an important component of the missile engine propulsion system.The stability of its outlet pressure directly affects the performance and stability of the extruded propellant,which in turn affects the overall performance of the propulsion system.In order to study the influence of the outlet flow of a new type of digital proportional valve used in a missile fuel tank pressurization system on its static characteristics,this paper establishes a mathematical model and adopts the method of combining simulation and experiment to obtain that there is a deviation in the influence of the flow rate on the stability of the outlet pressure.At the outlet flow rate between 0.2 L/s and 0.5 L/s,the tracking of the feedback pressure is better,and the conclusion that the outlet pressure deviation is less than 0.01 MPa,it will provide a new idea for the design of the pneumatic pressure reducing valve for the missile fuel tank.

关 键 词：数字比例阀 静态特性 仿真 试验 

分 类 号：TH138[机械工程—机械制造及自动化]