Results 171 to 180 of about 545,828 (225)

Experimental Verification of An Electro-Hydraulic Actuation System Driven by An Integrated Electro-Hydraulic Unit

International Journal of Fluid Power, 2023
This paper proposes an electro-hydraulic actuator (EHA) system, and a novel-designed electro-hydraulic unit (EHU) consisting of a fixed-displacement hydraulic gear machine and a variable-speed electric machine. The novel EHU design integrates an electric machine and a hydraulic machine in a single housing, targeting optimal compactness, power density ...
Shaoyang Qu, Federico Zappaterra, Andrea Vacca, Zifan Liu, Enrique Busquets   +4 more
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Modeling and identification of an Electro-Hydraulic Actuator

2016 12th IEEE International Conference on Control and Automation (ICCA), 2016
In this work, a physical non-linear model of an Electro-Hydraulic Actuator has been developed. Each system component (valves, pipes, cylinders) and their interactions have been modeled by means of conservation and constitutive laws. The actuator dynamics, with lumped-parameter element models, have been treated accurately, with special attention given ...
Cologni, Alberto Luigi, Mazzoleni, Mirko, Previdi, Fabio   +2 more
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Velocity control of an electro hydraulic servosystem

2007 IEEE International Conference on Systems, Man and Cybernetics, 2007
This study addresses new hybrid approaches for velocity control of an electro hydraulic servosystem (EHSS) in presence of flow nonlinearities and internal friction. In our new approaches, we combined classical method based-on sliding mode control and fuzzy RBF networks. The control by using adaptive networks need plant's Jacobean, but here this problem
M. Aliyari Shoorehdeli, M. Teshnehlab, H. Aliyari Shoorehdeli   +2 more
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Electro-hydraulic actuator trajectory tracking

Proceedings of the 2004 American Control Conference, 2004
This paper combines block control, sliding mode control and integral control techniques to design a controller, which is able to force an electrohydraulic actuator driven by a servovalve to track a given chaotic reference trajectory. This approach enables to compensate the inherent nonlinearities of the actuator and to reject external constant ...
Manuel A. Avila, Alexander G. Loukianov, Edgar N. Sánchez   +2 more
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Electro-hydraulic generator of vibrations [PDF]

, 2010
The results of experimental research of twochannel electro-hydraulic generator of vibrations are resulted. It is showed that in all of range of frequencies the piston of the hydraulic oscillating system carries out stable fluctuating motions due to introduction to the structure of generator of sensor of stabilizing of midposition there is a drive ...
Гнитецкий, В. А., Новик, Н. А., Novik, N. A., Серых, И. И., Eliseev, Ju. V., Seryh, I. I., Gniteckij, V. A., Елисеев, Ю. В.   +7 more
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Electro-hydraulic Servomechanisms†

Journal of Electronics and Control, 1958
Abstract The additional complications of hydraulic elements have not prevented servomechanism engineers from resorting frequently in recent years to the use of high-pressure hydraulic motors in place of electric motors. The reasons for this trend are examined in relation to the performance demanded in many modern servomechanisms, particularly these in ...
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Developments at Electro‐Hydraulics

Aircraft Engineering and Aerospace Technology, 1966
RECENT developments at Electro‐Hydraulics Ltd. are in two categories: in component design and in solutions to basic hydraulic problems. Examples shown below are selected from a number of fairly recent component design details, followed by an outline of developments in seals and a summary of fatigue tests on hydraulic tubes.
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Agricultural Tractor Electro-Hydraulics

SAE Technical Paper Series, 1979
<div class="htmlview paragraph">Advancements in farming techniques have required improvements be sought in the vehicle hydraulic system control.</div> <div class="htmlview paragraph">The application of a Electro-Hydraulic Servo System has produced these improvements for the J I Case Company on one series of its Agricultural tractors ...
P. Lourigan, K. Patel
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Electro-hydraulic linear actuator

2016 39th International Spring Seminar on Electronics Technology (ISSE), 2016
The paper presents an electro-hydraulic linear actuator used at Tuzla Sea Survival School on the Cabin Emergency and Escape Trainer CEET B732 developed by author, which implements their research about electro-hydraulic system driven by common PLCs.
Marian Blejan, Ioana Ilie, Radu Radoi, Corneliu Cristescu   +3 more
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Applications of electro-hydraulics actuators

SoutheastCon 2016, 2016
Electro-hydraulic systems can be used in robust robotics systems that have to carry heavier loads efficiently. Electrical drives have proven to be reliable and easy to control, but they may have problems when it comes to holding a position under load for a long period of time.
Vukica Jovanovic, Ana Djuric, Velibor Karanovic, Branislav Stevanov   +3 more
openaire   +1 more source