Results 21 to 30 of about 1,090,030 (231)

Design and Analysis of Electro-Hydraulic Servo System for Speed Control of Hydraulic Motor

open access: yesJurnal Engineering, 2023
In this study, the electro-hydraulic servo system for speed control of fixed displacement hydraulic motor using proportional valve and (PID) controller is investigated theoretically ,experimentally and simulation .
A. Abdul   +3 more
semanticscholar   +1 more source

Parameter Adaptive Sliding Mode Force Control for Aerospace Electro-Hydraulic Load Simulator

open access: yesAerospace, 2023
The aerospace electro-hydraulic servo simulator is used to simulate the air load received during flight, and is used for the performance test and acceptance test of aerospace servo actuators on the ground. The force loading accuracy of the load simulator
Jing Huang   +5 more
semanticscholar   +1 more source

Electro-osmotic consolidation of soil with variable compressibility, hydraulic conductivity and electro-osmosis conductivity [PDF]

open access: yes, 2017
In present study, the non-linear variations of soil compressibility, hydraulic and electro-osmosis conductivities were analyzed through laboratory experiments, and incorporated in a one-dimensional model.
漆文刚   +4 more
core   +1 more source

DESIGN METHOD FOR ELECTRO-HYDRAULIC CONVERTERSOF AIRCRAFT ENGINES

open access: yesАвіаційно-космічна техніка та технологія, 2019
The main trends in the use of aircraft engines actuators, that convert electrical commands into mechanical and hydraulic, are presented. Examples of the use of modern engine control systems are described, in which hydraulic cylinders are used to move the
Евгений Александрович Кононыхин   +1 more
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

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

Research on high efficiency and high dynamic optimal matching of the electro-hydraulic servo pump control system based on NSGA-II

open access: yesHeliyon, 2023
An electro-hydraulic servo pump control system (hereinafter referred to as EHSPCS) is a volume servo control unit that is highly integrated with servo motors, fixed-displacement pumps, hydraulic cylinders and functional valve groups.
Mingkun Yang   +4 more
semanticscholar   +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

An Improved Parameter Identification Algorithm for the Friction Model of Electro-Hydraulic Servo Systems

open access: yesItalian National Conference on Sensors, 2023
Friction is an inherent nonlinear disturbance that can lead to creeping, jitter, and decreased tracking precision in an electro-hydraulic servo system. In this paper, the LuGre friction model is used to describe the dynamic and static characteristics of ...
Jian Liao, Fuming Zhou, Jianbo Zheng
semanticscholar   +1 more source

Mathematical modelling and numerical simulation of linear electro-hydraulic servomechanism with stepper motor [PDF]

open access: yesE3S Web of Conferences, 2020
The paper presents the results of research on the performance of linear electro-hydraulic servomechanisms with stepper motor, evaluated by mathematical modelling and numerical simulation with the AMESIM software package.
Muraru Vergil   +4 more
doaj   +1 more source

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