Mathematical Model of Steady State Operation in Jet Pipe Electro-Hydraulic Servo Valve  

作　　者：范春红山 陈天福 

机构地区：[1]School of Mechanical Engineering,Tongji University [2]School of Mechanical Engineering,Ho Chi Minh City University of Technology

出　　处：《Journal of Donghua University(English Edition)》2013年第4期269-275,共7页东华大学学报（英文版）

基　　金：National Science and Technology Supporting Program,China(No.2011BAJ02B06);Aeronautical Science Foundation of China(No.20090738003);National Natural Science Foundations of China(No.51175378,No.50775161)

摘　　要：Jet pipe electro-hydraulic servo valve is the heart of feedback control systems,and it is one of the mechatronic components used for precision flow control application.It consists of several precision and ddicate components.The performance of the jet pipe servo valve depends on many parameters.During the developmental stage,it is very difficult to ascertain the function parameters.The steady-state analysis of jet pipe electro-hydraulic servo valve has been made to simulate its fluid characteristics （flowin,flow-out,leakage flow,recovery or load pressure,etc.） by mathematical modeling.Theoretical model was conducted on various affecting parameters on the pressure,the main flow rate of fluid,or leakage flow through the receiver holes.The major parameters studied are jet pipe nozzle diameters,receiver hole diameters,angle between the two centre-lines of receiver hole,nozzle offset,and nozzle stand-of distance.In this paper the research is important to determine and optimize the structural parameters of jet pipe servo valve.Thus,equations of the pressure and flow characteristics are set up and the optimal structural parameters of jet pipe are established.Jet pipe electro-hydraulic servo valve is the heart of feedback control systems,and it is one of the mechatronic components used for precision flow control application.It consists of several precision and delicate components.The performance of the jet pipe servo valve depends on many parameters.During the developmental stage,it is very difficult to ascertain the function parameters.The steady-state analysis of jet pipe electro-hydraulic servo valve has been made to simulate its fluid characteristics(flowin,flow-out,leakage flow,recovery or load pressure,etc.)by mathematical modeling.Theoretical model was conducted on various affecting parameters on the pressure,the main flow rate of fluid,or leakage flow through the receiver holes.The major parameters studied are jet pipe nozzle diameters,receiver hole diameters,angle between the two centre-lines of receiver hole,nozzle offset,and nozzle stand-of distance.In this paper the research is important to determine and optimize the structural parameters of jet pipe servo valve.Thus,equations of the pressure and flow characteristics are set up and the optimal structural parameters of jet pipe are established.

关 键 词：jet pipe servo valve pressure characteristics fluid characteristics mathematical modelCLC number：O351.2Document code：AArticle ID：1672-5220（2013）04-0269-07 

分 类 号：O351.2[理学—流体力学]