Results 1 to 10 of about 196,790 (293)

Research and Development of Electro-hydraulic Control Valves Oriented to Industry 4.0: A Review

open access: yesChinese Journal of Mechanical Engineering, 2020
Electro-hydraulic control valves are key hydraulic components for industrial applications and aerospace, which controls electro-hydraulic motion. With the development of automation, digital technology, and communication technology, electro-hydraulic ...
Bing Xu   +4 more
doaj   +3 more sources

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   +2 more sources

Research on positioning control strategy of hydraulic support pushing system based on multistage speed control valve [PDF]

open access: yesScientific Reports
The precise position control of the hydraulic support pushing system in the coal mining face is a key technical support for intelligent coal mining. At present, the hydraulic support pushing system uses the electro-hydraulic directional valve as the ...
Tengyan Hou   +5 more
doaj   +2 more sources

Conservation Integrals in Nonhomogeneous Materials with Flexoelectricity

open access: yesApplied Sciences, 2021
The flexoelectricity, which is a new electromechanical coupling phenomenon between strain gradients and electric polarization, has a great influence on the fracture analysis of flexoelectric solids due to the large gradients near the cracks. On the other
Pengfei Yu, Weifeng Leng, Yaohong Suo
doaj   +1 more source

Analysis of Concentration Polarisation in Full-Size Spiral Wound Reverse Osmosis Membranes Using Computational Fluid Dynamics

open access: yesMembranes, 2021
A three-dimensional model for the simulation of concentration polarisation in a full-scale spiral wound reverse osmosis (RO) membrane element was developed.
Wenshu Wei   +5 more
doaj   +1 more source

The bending and vibration responses of functionally graded piezoelectric nanobeams with dynamic flexoelectric effect

open access: yesResults in Physics, 2021
Dynamic flexoelectric effect refers to the coupling between polarization and acceleration of a material, which is usually ignored in previous works.
Pengfei Yu   +4 more
doaj   +1 more source

Research on Semi-physical Simulation and Test Platform for Electro-hydraulic Steering System of Autonomous-rail Rapid Tram

open access: yesKongzhi Yu Xinxi Jishu, 2023
Aiming at the shortage of experimental resources and the difficulties in the on-site debug of the electro-hydraulic steering system, a set of semi-physical simulation platform, based on mathematic model of electro-hydraulic steering system, is developed.
HUANG Song   +6 more
doaj   +3 more sources

Application research on active disturbance rejection control algorithm and test of electro-hydraulic steering gear

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThe new type of electro-hydraulic steering gear with direct drive volume control is a typical system with large inertia and small damping.
Zongbin CHEN, Jian LIAO, Banghui LIU
doaj   +1 more source

Feedback-feedforward variable gain iterative learning method adopted in electro-hydraulic position servo system

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to realize the precise control of a certain type of electro-hydraulic position servo system, a feedback-feedforward variable gain iterative learning method is proposed. MethodFirst, the simplified model of the electro-hydraulic position
Xuan LIU   +4 more
doaj   +1 more source

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

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