Results 111 to 120 of about 51,710 (183)

Adaptive NN Force Loading Control of Electro-Hydraulic Load Simulator

To address the issues of derivative explosion in traditional backstepping control and the strong nonlinearity of hydraulic systems, this paper develops an adaptive neural network control method tailored for electro-hydraulic load simulators.
Jiefeng Shan, Jiafeng Li, Zanwei Chen, Peng Zhang, Hao Yan   +4 more
core   +1 more source

ELECTRO-HYDRAULIC (PNEUMATIC) STAGE PROPORTIONAL CONTROL

Proceedings of the JFPS International Symposium on Fluid Power, 2002
The electrical-mechanical interfaces of servo valves and proportional valves display electromagnetic nonlinearities, such as hysteresis and saturation. In many cases, these nonlinearities have usually unfavorable effects on the performance of the whole control system.
Ruan, Jian, Burton, R., Ukrainetz, P., Bitner, D.   +3 more
openaire   +2 more sources

Highly Dynamic Soft Electrohydraulic Origami Actuators for Agile and Multimodal Robotic Locomotion

SmartBot, Volume 2, Issue 2, June 2026.
Most current soft robots still lag far behind their natural counterparts in both agility and speed, mainly attributed to the limited morphing modes and performance of soft actuators. Here, the authors report a new methodology of electrohydraulic origami (EHO) for creating powerful and multimodal soft actuators with large strain, high speed, lightweight,
Wenbo Li, Yuanzhen Zhang, Guorui Li, Hai Li, Kai Tao, Wenming Zhang, Jian Xu   +6 more
wiley   +1 more source

Optimized PID Controller Based on Beetle Antennae Search Algorithm for Electro-Hydraulic Position Servo Control System

Sensors, 2019
To improve the controllability of an electro-hydraulic position servo control system while simultaneously enhancing the anti-jamming ability of a PID controller, a compound PID controller that combines the beetle antennae search algorithm with PID ...
Yuqi Fan, Junpeng Shao, Guitao Sun
doaj   +1 more source

Transient Porosity During Fluid‐Mineral Interaction. Part 1: In Situ 4D Tomography

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Fluid‐induced mineral replacement reactions play a key role in controlling porosity generation and permeability evolution in geologic systems. However, the dynamic feedback between pore structure development and fluid transport remains poorly quantified. This study investigates the spatiotemporal evolution of reaction‐induced pore space in the
Hamed Amiri, Vangelis Dialeismas, Damien Freitas, Roberto Rizzo, Alireza Chogani, Christian M. Schlepütz, Florian Fusseis, Oliver Plümper   +7 more
wiley   +1 more source

Proportional Electro-Hydraulic Valves: A Hierarchical Embedded Model Control Solution

, 2015
Hierarchical control architectures are a common approach when hydraulic systems are under study. This paper presents the application of a model-based control structure called Embedded Model Control (EMC) when a hierarchical scheme is implemented on an ...
CANUTO, Enrico, Acuna Bravo W, Ma Y
core  

Research on Multi-Mode Control of Electro-Hydraulic Variable Displacement Pump Driven by Servo Motor

Actuators
The electro-hydraulic power source with an electro-hydraulic variable pump driven by a servo motor is suitable for electrified construction machinery. To achieve better energy efficiency in different working conditions, the multi-mode control scheme was ...
Zhiqiang Zhang, Yupeng Yan, Lin Li, Qun Chao, Kunshan Jin, Zhiqi Liu   +5 more
doaj   +1 more source

Unstable Weak Imbibition in Fractured Porous Media: Microfluidic and Theoretical Insights

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Weak imbibition in permeable media is crucial for CO2 geological sequestration, oil and gas extraction, and groundwater contamination and remediation. Previous studies predicted that weak imbibition under favorable viscosity ratios produces stable displacement, but this assumption may fail in fractured porous media.
Zhengwen Zhu, Ran Hu, Tian Lan, Zhibing Yang, Yi‐Feng Chen   +4 more
wiley   +1 more source

Analysis of Electro-hydraulic Proportional Speed Control System on Conveyer

, 2012
In this paper, electro-hydraulic proportional control technology is used in speed control by a lead cathode walking-beam conveyer in order to ensure the accuracy of conveyor speed control.
Li, Rong, Liu, Sen, Luo, Jing, Sun, Chun-geng   +3 more
core   +1 more source

Handgrip and Acute Hemodynamic Responses During Cyclic Exercise: Randomized Clinical Trial

The Journal of Clinical Hypertension, Volume 28, Issue 6, June 2026.
ABSTRACT During exercise, fine hemodynamic adjustments are essential to ensure adequate energy supply. Although cyclic treadmill exercise has been widely studied, isometric exercise with Handgrip (HG) has gained relevance in conditioning and rehabilitation contexts, yet data on the acute hemodynamic effects of combining these modalities remain scarce ...
Marvyn de Santana do Sacramento, Pedro Elias Santos Souza, Josias Melo Leite, Ramon Martins Barbosa, Alan Carlos Nery dos Santos, Lais dos Santos Marques, Alice Miranda de Oliveira, Jefferson Petto   +7 more
wiley   +1 more source