Results 31 to 40 of about 268 (133)

Modeling and control of a high-quality electro-hydraulic actuator driven via an induction motor under intelligent indirect vector control [PDF]

open access: yesEngineering and Technology Journal
Due to its excellent energy efficiency and broad speed range, the variable-speed electro-hydraulic drive is an appealing driving principle in many contemporary industrial applications.
Aws Hassan, Jamal Mohammed, Walaa Hashim
doaj   +1 more source

Adaptive Dynamic Surface Control for Active Suspension With Electro-Hydraulic Actuator Parameter Uncertainty and External Disturbance

open access: yesIEEE Access, 2020
In this paper, a new adaptive dynamic surface control strategy is proposed to deal with the uncertainty parameters of electro-hydraulic actuator and unknown external disturbances of vehicle active suspension system.
Shuang Liu   +3 more
doaj   +1 more source

Electro-hydraulically actuated forestry manipulator: Modeling and Identification

open access: yes2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2012
We present results of modeling dynamics of a forestry manipulator, in which we consider its mechanics, as well as its hydraulic actuation system. The mathematical model of its mechanics is formulated by Euler-Lagrange equations, for which the addition of friction forces is straightforward.
Pedro X. La Hera   +2 more
openaire   +3 more sources

Reinforcement Learning-Based Position Tracking Control for Proportional Directional Control Valve-Based Electro-Hydraulic System

open access: yesIEEE Access
This paper presents a reinforcement learning-based discrete-time control strategy for nonlinear electro-hydraulic actuator systems equipped with a proportional directional control valve.
Raja Rout, Ashok Kumar Kumawat
doaj   +1 more source

Design criterion to select adequate control algorithm for electro-hydraulic actuator applied to rocket engine flexible nozzle thrust vector control under specific load [PDF]

open access: yesFME Transactions, 2013
The paper presents the challenge of finding the best criterion in selecting adequate control algorithm for electro-hydraulic actuator with a defined load.
Nauparac Dragan B.   +4 more
doaj  

Research on structure decoupling of passive electro-hydraulic force servo system

open access: yesAdvances in Mechanical Engineering, 2018
In order to study the strong force/position coupling problem of passive electro-hydraulic force servo system, taking the valve control swing motor of passive electro-hydraulic force servo system as an object, a new principle of structure coupling is ...
Geqiang Li   +4 more
doaj   +1 more source

Fuzzy Finite Memory State Estimation for Electro-Hydraulic Active Suspension Systems

open access: yesIEEE Access, 2021
This paper presents a novel nonlinear estimator called the fuzzy finite memory (FFM) state estimator for electro-hydraulic active suspension systems, based on fuzzy techniques and finite impulse response.
Hyun Duck Choi, Sung Hyun You
doaj   +1 more source

High Precise Fuzzy Control for Piezoelectric Direct Drive Electro-Hydraulic Servo Valve

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
As the core part of the electro-hydraulic servo system, the electro-hydraulic servo valve plays an important role in the system. Due to the piezoelectric actuator has characteristics of fast response, easy control and high control accuracy, it can be ...
Miaolei ZHOU   +3 more
doaj   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich   +2 more
wiley   +1 more source

Electro-Hydraulic Proportional System Real Time Tracking Control Development Based on Pulse width Modulation Method

open access: yesCommunications, 2021
The presented work was directed to develop the dynamic performance of an electro-hydraulic proportional system (EHPS). A mathematical model of the EHPS is presented using electro- hydraulic proportional valve (EHPV) by Matlab-Simulink, which facilitates ...
Ezz Eldin Ibrahim   +3 more
doaj   +1 more source

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