Results 11 to 20 of about 52,137 (241)

Design and Test of Sowing Depth Measurement and Control System for No-Till Corn Seeder Based on Integrated Electro-Hydraulic Drive

open access: yesApplied Sciences, 2023
An electro-hydraulic profiling mechanism has been gradually applied to provide suitable downforce for a no-till row unit and to ensure the consistency of the seed sowing depth.
Liming Zhou   +8 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

Numerical Investigation of Dynamic Pipe-Soil Interaction on Electrokinetic-Treated Soft Clay Soil [PDF]

open access: yes, 2020
© 2019 American Society of Civil Engineers. Researchers have underscored the importance for a pipeline to safeguard against adverse effects resulting from its displacement in the vertical, axial, and lateral directions because of the low shear strength ...
Joshua, H.N., Kara, Fuat
core   +1 more source

Development Status and Research Progress of a Tractor Electro-Hydraulic Hitch System

open access: yesAgriculture, 2022
A tractor electro-hydraulic hitch system is considered one of the most important systems that play a strategic role in the power transmission and operation depth control of a tractor’s field operation.
Xiaoxu Sun   +6 more
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

ELECTRO-HYDRAULIC (PNEUMATIC) STAGE PROPORTIONAL CONTROL

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 2002
The electrical-mechanical interfaces of servo valves and proportional valves display electromagnetic nonlinearities, such as hysteresis and saturation. In many cases, these nonlinearities have usually unfavorable effects on the performance of the whole control system.
Jian Ruan   +3 more
openaire   +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

Research of emergency stop control scheme for electro-hydraulic control system of hydraulic support

open access: yesGong-kuang zidonghua, 2015
For inconvenient emergency stop control with low reliability of existing electro-hydraulic control equipment of hydraulic support, an emergency stop control scheme for electro-hydraulic control system of hydraulic support was proposed which was based on ...
CHAI Wen   +8 more
doaj   +1 more source

Top coal thickness detection method for intelligent fully-mechanized working face

open access: yesGong-kuang zidonghua, 2021
Detecting the thickness of the top coal in a fully mechanized working face in advance can provide a basis for precise control of the top coal caving, which is beneficial to achieving a balance between the coal caving recovery rate and coal quality.
YANG Xiuyu1   +3 more
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

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