Results 81 to 90 of about 3,510 (216)

Application of Modelica/MWorks on modeling, simulation and optimization for electro-hydraulic servo valve system

open access: yes, 2012
Electro-hydraulic servo valve is a typical complicated multi-domain system constituted by mechanical, electric, hydraulic and magnetic components, which is widely used in electro-hydraulic servo systems such as construction machinery, heavy equipment ...
Liu, Jinyang   +4 more
core   +1 more source

Active Disturbance Rejection Control of Valve-Controlled Cylinder Servo Systems Based on MATLAB-AMESim Cosimulation

open access: yesComplexity, 2020
The valve-controlled cylinder position servo system has the advantages of large output force and large power. As characteristics of nonlinearity and uncertainty exist in the hydraulic servo system, it is difficult for the traditional PID control to meet ...
Wenxiao Guo   +4 more
doaj   +1 more source

Análise teórico-experimental de falhas em válvulas direcionais servoproporcionais [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2009.Este trabalho trata da detecção e diagnóstico de falhas em válvulas de controle contínuo ...
Ramos Filho, José Roberto Branco
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Research on Flow Characteristics of Slide Valve Used in Water Hydraulic Servo Valve

open access: yes, 2010
Water hydraulic servo valve has become an important research subject nowadays, and its secondary amplifier usually uses slide valve. Research on flow characteristics of water hydraulic slide valve is important to the design of water hydraulic servo valve.
Shu Wen Sun, Wei Li, Xin Hua Wang
core   +1 more source

Development of the opto-fluidic servo valve

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 2002
An opto-pneumatic servo system employing opto-fluidic converter and pneumatic valve can operate the mechanical system directed by optical signal and work in hazardous environments because it does not use the electric immediate signal. The converter transforms the optical signal intensity into proportional fluid power, i.e.
Kanai, Dai   +4 more
openaire   +2 more sources

A New Control Technology of Shaking Table Based On the Jerk

open access: yes工程科学与技术, 2018
Shaking table test is a direct and effective means of seismic response simulation and seismic performance observation of engineering structures,but because the electro-hydraulic servo shaking table system is complex nonlinear system,the performance of ...
Xiaojun LI   +3 more
doaj  

Research on servo valve-controlled hydraulic motor system based on active disturbance rejection control

open access: yesMeasurement + Control
According to the unstable and nonlinear performances of the servo valve-controlled hydraulic motor, classical control methods based on linear theory are gradually unable to meet the high-performance requirements of the system.
Zhijie Duan   +3 more
doaj   +1 more source

The design, simulation, and experiment of high-accuracy multi-axle electro-hydraulic control servo steering system

open access: yesAdvances in Mechanical Engineering, 2016
Many multi-axle applications use electro-hydraulic control systems with proportional valves. The proportional steering system can satisfy common engineering requirements, but it is likely to fail if the steering angle or load changes drastically because ...
Heng Du, JianHua Wei, JinHui Fang
doaj   +1 more source

Low friction servo valve

open access: yes, 1968
Valve was developed using air bearings which provide frictionless operation. The servo valve is of the flat plate type with rectangular meter openings. Fluid bearings support the metering plate.
Dustin, M. O.
core  

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