Results 111 to 120 of about 638,968 (154)

An ultra fast-acting electro-hydraulic digital valve and high-speed electro-hydraulic servo valves using multilayered PZT elements

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 1993
YOKOTA, Shinichi   +2 more
openaire   +3 more sources

Study on Electro-hydraulic Servo Valve Control System of Series Manipulator

open access: yesInternational Journal of Control and Automation, 2017
Zhang Daode   +3 more
openaire   +1 more source

Fault-tolerant control of an electro-hydraulic servo axes with a duplex-valve-system* [PDF]

open access: yesIFAC Proceedings Volumes, 2011
This paper presents fault detection, fault diagnosis, the fault-tolerant control of an electro-hydraulic servo axes with a duplex-valve-system. The fault detection is based on parity equations and is load independent. The semi-physical models allow the detection of even small faults in the hydraulic system.
Beck, Mark   +3 more
openaire   +3 more sources
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Heat Characteristics Analysis of Electro-Hydraulic Servo Valve

Journal of Thermal Science and Engineering Applications, 2019
A new method of building electro-hydraulic servo valve's thermal model is proposed. In this method, energy conservation equation of servo valve was obtained according to thermodynamics, which describes servo valve's heat conduction, heat convection, and heat radiation with other hydraulic components.
Jianfeng Tao, Tao Jianfeng
exaly   +2 more sources

Simulation of the Nozzle Electro-Hydraulic Servo Valve with ITI-SimulationX

Advanced Materials Research, 2013
The structure and principle of the nozzle electro-hydraulic servo valve was introduced, and the complicated characteristics of mechanical, electrical, hydraulic, and magnetic are studied in this paper. The model of the nozzle electro-hydraulic servo valve was built based on the ITI-SimulationX software platform.
Xiang Yang Xu, Xu Xiang Yang
exaly   +2 more sources

Research on Electro-hydraulic Servo Valve Structure and Control Algorithm of System with Servo Valve

Recent Patents on Engineering
Background: 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
exaly   +2 more sources

Life Evaluation of Electro-Hydraulic Servo Valve Based on Wear Mechanism

Applied Mechanics and Materials, 2014
Electro-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, Wang Xiao Hong
exaly   +2 more sources

The Design of Comprehensive CAT Test Rig for Electro-Hydraulic Servo Valve

Applied Mechanics and Materials, 2013
By 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
exaly   +2 more sources

Fault Diagnosis of Electro-Hydraulic Servo Valve Based on Multilayer Perceptron

2022 5th World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM), 2022
Erchuan Su, Xiaojun Guo
exaly   +2 more sources

Fault Diagnostic of Electro-Hydraulic Servo Valve

Advanced Materials Research, 2012
In order to achieve the fault diagnostic and degradation assessment of the electro-hydraulic servo valve, a system of prognostic and health management based on the data-driven approach for the electro-hydraulic servo valve is presented. FMMEA performed in this study considered the degree of sub-components in electro-hydraulic servo valve.
Hai Yang Pan   +3 more
openaire   +1 more source

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