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Electro-Hydraulic Servo Loading System for the Pumping Unit
Applied Mechanics and Materials, 2015Loading system of pumping unit simulates the working condition of pumping unit. It can repeat all kind of the real force and motion on pumping unit and detect the quality of pumping unit. Through analyzing the indicator diagram of pumping unit, we design a elecro-hydraulic servo loading system of pumping unit which uses the method of displacement and ...
Li Ping Xu, Song Yao
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Output feedback tracking control of electro-hydraulic servo systems
Proceedings of 35th IEEE Conference on Decision and Control, 2002This paper presents a model-free robust/adaptive control scheme for tracking control of electrohydraulic servo systems using output feedback only. The Taylor expansion theory is used to enable the proposed controller to identify and feedback linearize the dynamics of a system online, and to compensate parameter variation and various disturbances in ...
null Zhenying Zhao, null Lilong Cai
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Direct Drive Volume Control Electro-Hydraulic Servo Ship Rudder
Key Engineering Materials, 2010Direct drive volume control（DDVC）electro-hydraulic servo system has synthesized the advantages of high power of hydraulic system and flexible control of the motor. It also has other features such as energy saving, high efficiency, small bulk and high reliability.
Wen Hai Su, Ji Hai Jiang
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Compound control on electro-hydraulic servo loading test bench
2013 IEEE International Conference on Information and Automation (ICIA), 2013In order to verify and optimize the design process of electro-hydraulic servo system, this paper set up a load-adjustable electro-hydraulic servo load test bench. Base on the structural analysis of test bench, the mathematical models of closed-loop torque and position control are established.
Yanqing Guo +4 more
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Research of Electro-hydraulic Servo System Model and Reduction
2010 International Conference on Electrical and Control Engineering, 2010In this paper it sets up the mathematical model of electro-hydraulic servo control system, and analyses it by MATLAB, then gives a model reduction method and use it to reduce the mathematical model, and compares the responses of step signal of the two systems. At last we prove that this reduction method is available and it has some advantages.
Jing Binghua, Song Liwu, Zhou Qingguo
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Servo System of 6 DOF Electro-hydraulic Shaking Table
2011Electro-hydraulic shaking table (EHST) is a useful experimental apparatus to real-time replicate the desired acceleration vibration signal for evaluating the performance of the tested specimen structural systems. A three axis six degree-of-freedom (DOF) EHST system with eight hydraulic actuators is presented in the paper.
Liyi Yin +3 more
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Real-Time Modeling of an Electro-hydraulic Servo System
2010Real-Time Hardware-in-the-loop (HIL) test is a good ground for examine the dynamic model of controlled equipments, for example electro-hydraulic servo systems, to observe the main parameters and monitor the dynamic behavior of the system. Electro-hydraulic servo actuators are widely used in industrial applications because it has high moving force ...
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