Results 21 to 30 of about 54,711 (246)

Fault monitoring of electric and hydraulic control system of remote control drilling rig

open access: yesMeikuang Anquan, 2021
It is often difficult to quickly troubleshoot and repair the complex electro-hydraulic control system of remote control drilling rigs. Therefore, it is proposed to establish its electro-hydraulic control system monitoring system to quickly find the ...
ZHANG Gang
doaj   +1 more source

Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism [PDF]

open access: yesEngineering and Technology Journal, 2020
An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic servo system for controlling the speed of a hydraulic elevator prototype ...
Jamal Mohammed   +2 more
doaj   +1 more source

Review on Inlet/Outlet Oil Coordinated Control for Electro-Hydraulic Power Mechanism under Sustained Negative Load

open access: yesApplied Sciences, 2018
Speed control and smooth regulation in an electro-hydraulic motion control system under negative load (over-running load) are crucial to mobile machineries, vehicles, and motion simulation equipment.
Wei Liu, Yunhua Li, Dong Li
doaj   +1 more source

Mass and charge transport in micro and nano-fluidic channels [PDF]

open access: yes, 2006
We consider laminar flow of incompressible electrolytes in long, straight channels driven by pressure and electro-osmosis. We use a Hilbert space eigenfunction expansion to address the general problem of an arbitrary cross section and obtain general ...
Batchelor G.K.   +11 more
core   +2 more sources

Design of remote electro-hydraulic control system of overhead monorail for cable handling

open access: yesGong-kuang zidonghua, 2014
A remote electro-hydraulic control system of overhead monorail for cable handling was designed through adding telecontroller and wireless transceiver to existing electro-hydraulic control system of overhead monorail for cable handling. Composition of the
BI Dongzhu
doaj   +1 more source

Built-in test technology for electro-hydraulic servo-valve amplifier

open access: yesZhongguo Jianchuan Yanjiu, 2021
Objectives The electro-hydraulic servo valve operates in a harsh working environment but lacks integrated testability. In order to improve the usability and maintainability of electro-hydraulic servo valves, it is necessary to design a built-in test (BIT)
Jianping YUAN, Hanbing SUN
doaj   +1 more source

Full- and Reduced-order Model of Hydraulic Cylinder for Motion Control [PDF]

open access: yes, 2017
This paper describes the full- and reduced-order models of an actuated hydraulic cylinder suitable for system dynamics analysis and motion control design.
Ruderman, Michael
core   +2 more sources

Design of transparent communication network system of electro-hydraulic control system of hydraulic support

open access: yesGong-kuang zidonghua, 2017
Current communication network system of electro-hydraulic control system of hydraulic support adopts no host control method to transmit data, and data generation time, generation quantity and delivery time has uncertainty,so as to cause communication ...
WANG Shuming
doaj   +1 more source

Development of an electrohydraulic drive system for the vibrating conveyor belt of the peanut digger-inverter. [PDF]

open access: yesPLoS ONE, 2018
Hydraulic systems are equipment widely used in stationary industrial equipment and in moving agricultural equipment and construction machines. Currently, the rotation of the vibrating conveyor belt of the peanut digger-inverter is triggered by the ...
Evaldo Ferezin   +3 more
doaj   +1 more source

Software defect management of electro hydraulic control system of hydraulic support

open access: yesGong-kuang zidonghua, 2016
For software defect problem of electro hydraulic control system of hydraulic support, software structural features of the electro-hydraulic control system were analyzed from software testing method, software defect management framework was built ...
NIU Jianfeng, BAI Yongsheng, GUO Dinghe
doaj   +1 more source

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