Results 41 to 50 of about 10,746 (231)

A New Active Disturbance Rejection Control Tuning Method for High-Order Electro-Hydraulic Servo Systems

open access: yesActuators
In our industry, active disturbance rejection control already has been used to enhance the performance of the electro-hydraulic servo systems, despite the fact that electro-hydraulic servo systems are usually reduced to first-order and second-order ...
Junli Zhang   +3 more
doaj   +1 more source

Characteristics of Position and Pressure Control of Separating Metering Electro-Hydraulic Servo System with Varying Supply Pressure for Rolling Shear

open access: yesApplied Sciences, 2020
The traditional valve-controlled hydraulic servo system has large throttling losses and undergoes serious heat problems when used in electro-hydraulic servo systems (EHSSs) for a rolling shear.
Suhong Lin   +4 more
doaj   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 1, Page 56-65, March 2026.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai   +5 more
wiley   +1 more source

Active Variable Geometry Suspension robust control for improved vehicle ride comfort and road holding [PDF]

open access: yes, 2015
This paper investigates the design of robust ℋ∞ control for road vehicle Series Active Variable Geometry Suspension (SAVGS). The objective is to improve ride comfort and road holding, while guaranteeing operation inside existing physical constraints. The
Arana, C   +3 more
core   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 1, Page 220-232, March 2026.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang   +6 more
wiley   +1 more source

Introduction to Nuclear Propulsion: Lecture 15 - Nuclear Test Operations [PDF]

open access: yes, 1963
The test operation of nuclear power plants, specifically nuclear rockets, bears some interesting similarities to the operation of chemical rocket tests as well as, of course, many differences.
Drexler, R. L., Storrs, C. L.
core   +1 more source

Modeling and fault tolerant control of an electro-hydraulic actuator [PDF]

open access: yes, 2016
In the modern industry, electro-hydraulic actuators (EHAs) have been applied to various applications for precise position pressure/ force control tasks.
Ahn, Kyoung Kwan   +4 more
core   +1 more source

Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 831-842, February 2026.
A novel output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system, which shows the great control potential of the designed output feedback controller during the start‐up and operation of the electro‐hydraulic actuator system ...
Yunfei Wang, Haigang Ding, Jiaxiang Man
wiley   +1 more source

Analysis and research on the constant-rate penetration mechanism of the seabed cone penetration test system

open access: yesFrontiers in Mechanical Engineering, 2023
The seabed Cone Penetration Test (CPT) system is a common method for investigating offshore soil. This paper focuses on a new subsea CPT method for assessing physical and mechanical properties of marine sediments. The new method enables automatic docking
Ziqiang Ren   +13 more
doaj   +1 more source

Temperature sensitive controller performance of MR dampers [PDF]

open access: yes, 2009
Magnetorheological (MR) dampers can experience large temperature changes as a result of heating caused by energy dissipation, but control systems are often designed without consideration of this fact.
Batterbee, D., Sims, N.D.
core   +1 more source

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