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New Modeling and Analysis of Three-Stage Electro-Hydraulic Servo Valve
2008 International Workshop on Modelling, Simulation and Optimization, 2008To develop higher performance three-stage electro-hydraulic servo valve, a new modeling software, AMEsim, is used to develop its non-linear model according to the construction and principles presented in this paper. The results of simulation and experimental test about an existing valve are consistent, which proves the model is right.
Xiaochu Liu +4 more
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Performance improvement of electro-hydraulic servo valve based on pole placement
2015 15th International Conference on Control, Automation and Systems (ICCAS), 2015Performance of servo valve has already been analyzed and improved in the S-domain which is a kind of classical control. In this paper, performance improvement of servo valve is conducted by pole placement that is a method of modern control. Consequently, controllability and stability of suggested model is confirmed and performance improvement is ...
Ji U Kim +3 more
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Applying the Electro-Hydraulic Servo Valve to Industry
IRE Transactions on Industrial Electronics, 1958The industrial control field is constantly adapting new techniques and procedures. These changes are motivated by industry's need to tum out their products faster and with greater precision. To make these improvements possible the manufacturers of mechanical, electrical, pneumatic, and hydraulic equipment are constantly developing new components and ...
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Research on Electro-hydraulic Servo Valve Structure and Control Algorithm of System with Servo Valve
Recent Patents on EngineeringBackground: With the continuous progress of electronic information technology, people have begun to study the combination of electronic information technology and hydraulic technology to achieve more accurate and flexible control. Electro-hydraulic servo technology was thus developed.
Jianying LI +4 more
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Simulation Model and Experimental Verification of Electro-Hydraulic Servo Valve
Applied Mechanics and Materials, 2013Structure and working principle of the two-stage moving coil electro-hydraulic servo valve has been analyzed. Through Laplace transformation to get the transfer function by the dynamic equations of the moving coil force motor, the displacement and current double closed loop control to simulate the force output characteristics, ignoring the ...
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Life Evaluation of Electro-Hydraulic Servo Valve Based on Wear Mechanism
Applied Mechanics and Materials, 2014Electro-hydraulic servo valve is the key component in electro-hydraulic servo control system, it has high reliable assemblies over a long period of time. This paper utilizes the accelerated degradation testing to evaluate their reliability and life. Firstly, the wear failure mechanism of electro-hydraulic servo valve is analyzed to determine.
Xiao Hong Wang, Qiu Xi Li, Ya Li Feng
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Fault diagnosis of electro-hydraulic servo valve based on neural network
2011 International Conference on Electric Information and Control Engineering, 2011Electro-hydraulic servo valve is a kind of equipment that always leads to some faults in the automatic gauge control system of the strip rolling mill. In order to diagnose faults of electro-hydraulic servo valves better, a three layers BP neural network was designed based on collection and analysis on the characteristic information of some their faults
Shubin Tan, Jianchang Liu
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Modeling and Key Technologies Study of Three-Stage Electro-Hydraulic Servo Valve
2009 International Asia Conference on Informatics in Control, Automation and Robotics, 2009The modeling and study of three-stage electro-hydraulic servo valve are presented in this paper. According to its construction and principle, its model is built. The results of simulation and experimental test are consistent, which proves the validity of the model. Based on the study of the model, the performances of three-stage electro-hydraulic servo
Xiaochu Liu +4 more
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The Design of Comprehensive CAT Test Rig for Electro-Hydraulic Servo Valve
Applied Mechanics and Materials, 2013By comparing the limitation of traditional test rig for electro-hydraulic servo valve and the advantages of CAT test rig for electro-hydraulic servo valve, this paper demonstrates an overall CAT test rig design including hydraulic system design and test software design.
Shuai Feng, An Bin Xu, Dong Li
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Tuning of Fractional-Order PID Controller for Electro-Hydraulic Servo Valve System
2019 International Conference on Information and Communications Technology (ICOIACT), 2019Last few years, some researchers have researched Fractional Order PID (FOPID) controllers that produce better system responses than conventional PID. In this paper, look for new parameter values of fractional-order PID in the electro-hydraulic servo valve system and observe system response performance.
Anggara Truna Negara +2 more
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