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The pressure control of independent load port electro-hydraulic load simulation system using fixed time integral sliding mode active disturbance rejection [PDF]

open access: yesScientific Reports
To address the issues of motion disturbance and low loading accuracy in electro-hydraulic load simulation systems, and to effectively mitigate the impact of uncertainty on system performance, this paper proposes a novel independent load port electro ...
He Hao, Hao Yan
doaj   +2 more sources

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

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

Physical modelling and analysis of electro-hydraulic position servo systems for single rod hydraulic cylinders [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
The electro-hydraulic position servo system of a single rod hydraulic cylinder is used in a large number of engineering applications due to its compact structure, but due to its asymmetric structure and complex mathematical model, many factors cannot be ...
ZHANG Yizhe, LI Yuesong, LI Geqiang, LI Guifei, WANG Bang
doaj   +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

Early Fault Symptom Diagnosis of Aircraft Electro-hydraulic Servo Valve

open access: yesHangkong gongcheng jinzhan, 2020
Electro-hydraulic servo valve is an important part of aircraft brake system, which affects the safety of aircraft landing. In order to solve the problem of frequent failure of a certain type of electro-hydraulic servo valve, a model of electro-hydraulic ...
JIN Guotao
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

Energy consumption in a large- scale 3D electro-osmosis-hydraulic synergism system for sludge consolidation

open access: yesShuiwen dizhi gongcheng dizhi, 2023
The 3D electro-osmosis-hydraulic synergistic consolidation method is proposed based on the theory of electroosmosis and consolidation to solve the problem of the high energy consumption and large-scale simulation of practice conditions for low ...
Ruoxuan ZHENG   +5 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

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

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