Results 21 to 30 of about 638,968 (154)

Mechanism of Temperature’s Acting on Electro-Hydraulic Servo Valve [PDF]

open access: yesIEEE Access, 2019
To understand temperature's influence on the electro hydraulic servo valve, a theoretical model of describing the detailed mechanism is necessary. For a servo valve experiencing actual working conditions, the temperature variation acts on the performance
Hao Yan, Yang Liu, Li Ma
doaj   +3 more sources

Influence of Vibration on Servo Valve Performance and Vibration Suppression in Electro-Hydraulic Shaking Table

open access: yesMachines
With the rapid progress of industrial technology in recent years, servo controllers have the characteristics of precise control and short response time and are widely used in different industrial fields.
Tao Wang   +3 more
doaj   +2 more sources

Dynamic Prediction of Performance Degradation Characteristics of Direct-Drive Electro-Hydraulic Servo Valves

open access: yesApplied Sciences, 2023
Direct-drive electro-hydraulic servo valves are widely used in the aerospace industry, in the military, and in remote sensing control, but there is little research and discussion on their performance degradation and service life prediction.
Juncheng Mi, Guoqin Huang
doaj   +2 more sources

Study on the Vibration Characteristics of Separated Armature Assembly in an Electro-Hydraulic Servo Valve Under Interference Fit

open access: yesActuators
The electro-hydraulic servo valve is a critical component that transforms electrical signals into hydraulic signals, thereby controlling the hydraulic system. It finds extensive application in precision control systems.
Tong Li   +4 more
doaj   +2 more sources

Simulation of an electro-hydraulic servo valve driven by an ultrasonic motor [PDF]

open access: yesMechanical Sciences
The conventional electro-hydraulic servo valve is driven by an electromagnet, which is easily disturbed and has poor dynamic performance, seriously restricting the flow control accuracy.
R. Niu, B. Zhou, Z. Pan
doaj   +3 more sources

Durability analysis of rotary direct drive electro-hydraulic pressure servo valve based on failure physics principle.

open access: yesPLoS ONE
The rotary direct drive electro-hydraulic servo valve (RDDPV) is extensively employed in hydraulic systems across aerospace, automotive, and various industrial sectors owing to its remarkable precision and rapid response characteristics.
Jianrui Zhang   +4 more
doaj   +2 more sources

Life prediction model of feedback rod in electro-hydraulic servo valve

open access: yesScientific Reports
Metallic elastic elements serve as critical structural components in advanced electro mechanical assemblies, where cyclic loading induces progressive rigidity reduction.
Xiaonan Pan, Jian Kang, Jianrui Zhang
doaj   +2 more sources

Synchronization of the movement for multi-cylinder electrohydraulic servo driver [PDF]

open access: yesEPJ Web of Conferences, 2022
The article presents the problem of synchronization of piston rods velocity of the multi-cylinder electro-hydraulic servo drive. This task was presented on the example of a heavily loaded mobile caterpillar platform.
Woś Piotr, Dindorf Ryszard
doaj   +1 more source

Active fault tolerant control of an electro-hydraulic servo axis with a duplex-valve-system [PDF]

open access: yes, 2023
In this paper fault detection, fault diagnosis and active fault tolerant control of an electro-hydraulic servo-axis with a duplex-valve-system are described. The fault detection is based on parity equations.
Münchhof, Marco   +3 more
core   +1 more source

Tracking control based on proportional resonant controller for electro‐hydraulic systems with input delay

open access: yesIET Control Theory &Applications, Volume 17, Issue 18, Page 2496-2505, December 2023., 2023
This paper studied the periodic reference tracking in electro‐hydraulic systems and provided a general PR controller to achieve high tracking performance. The related stability result is derived by the Routh–Hurwitz criterion. Abstract The growth of marine resources exploitation has led to increased research interest in electro‐hydraulic systems for ...
Shengwang Ye   +5 more
wiley   +1 more source

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