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Relevant bibliographies by topics / Electro-hydraulic actuator / Dissertations / Theses

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Dissertations / Theses on the topic 'Electro-hydraulic actuator'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Pastrakuljic, Vladimir. "Design and modeling of a new electro hydraulic actuator." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ45467.pdf.

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2

Qu, Shaoyang, David Fassbender, Andrea Vacca, Enrique Busquets, and Uwe Neumann. "A closed circuit electro-hydraulic actuator with energy recuperation capability." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71077.

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The recent electrification trend in the off-road market has incentivized research towards the proposal of compact, cost-effective and energy-efficient solutions for hydraulic actuators. As a result, increased attention has been given to electro-hydraulic actuator (EHA) architectures. The paper offers a study performed on a novel closed-circuit EHA architecture with the goal to maximize the overall system efficiency while meeting or exceeding traditional off-road applications performance, thereby enabling further electrification of off-road applications. Both numerical and experimental approach

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3

Abdulmalek, Ghiath. "Electronics and Control Development of Servo Electro-Hydraulic Actuators (SEHA)." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST224.

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Les robots humanoïdes incarnent un lien singulier entre l'ingénierie, la technologie et les aspirations humaines. Cependant, leur progression pose des défis complexes au-delà des aspects techniques, englobant des considérations fondamentales telles que les besoins énergétiques, les capacités de détection et les algorithmes de contrôle sophistiqués. Les actionneurs, véritable cœur de ces machines, jouent un rôle crucial en permettant des mouvements précis et en mimant la complexité des muscles et des articulations humaines. L'actuateur servo-électrohydraulique (SEHA), une proposition innovante

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4

Forster, Shauna. "A bilateral electro-hydraulic actuator system to measure dynamic ankle joint stiffness during human stance /." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80012.

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The role of the stretch reflex during upright stance remains unclear despite research that has been conducted to date. We have developed a bilateral electro-hydraulic actuator system to measure the dynamic joint stiffness of the human ankle during standing and help understand the role of the stretch reflex in the control of posture. The apparatus consists of two foot pedals that are each connected to an electro-hydraulic rotary actuator. Transducers were incorporated to measure the position and torque of each actuator, the angle of the ankle with respect to the foot plate, and the positions of

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5

Larson, John P. "Design of a Magnetostrictive-Hydraulic Actuator Considering Nonlinear System Dynamics and Fluid-Structure Coupling." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1402566309.

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6

Minav, Tatiana, Luca Papini, and Matti Pietola. "A Thermal Analysis of Direct Driven Hydraulics." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200125.

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This paper focuses on thermal analysis of a direct driven hydraulic setup (DDH). DDH combines the benefits of electric with hydraulic technology in compact package with high power density, high performance and good controllability. DDH enables for reduction of parasitic losses for better fuel efficiency and lower operating costs. This one-piece housing design delivers system simplicity and lowers both installation and maintenance costs. Advantages of the presented architecture are the reduced hydraulic tubing and the amount of potential leakage points. The prediction of the thermal behavior an

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7

Seung, Taehun. "Holistic-Lightweight Approach for actuation systems of the next generation aircraft." Universitätsverlag Chemnitz, 2017. https://monarch.qucosa.de/id/qucosa%3A34400.

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Currently the system development of aircraft engineering concentrates its focus on the reduction of energy consumption more than ever before. As a consequence, the efficiency of subsystems inside the aircraft is highlighted. According to previous investigations the simplification/unification of conventional multifaceted board energy systems by means of electric power management is the most promising way concerning aircraft global efficiency improvement. The main aim of the present work was to optimize a multi-device, heavy duty EHA-System by introducing of a comprehensive perspective. In order

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8

Chaudhuri, Anirban. "Self-contained hybrid electro-hydraulic actuators using magnetostrictive and electrostrictive materials." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8918.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Aerospace Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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9

Santos, Jo?o Deodato Batista dos. "Controle por modos deslizantes com compensa??o difusa aplicado a sistemas com descontinuidade." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15727.

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Made available in DSpace on 2014-12-17T14:58:24Z (GMT). No. of bitstreams: 1 JoaoDBS_DISSERT.pdf: 2950294 bytes, checksum: b123f316a60d2e367696c4d97c359a71 (MD5) Previous issue date: 2013-11-13<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The development of non-linear controllers gained space in the theoretical ambit and of practical applications on the moment that the arising of digital computers enabled the implementation of these methodologies. In comparison with the linear controllers more utilized, the non -linear controllers present the advantage of not requiring t

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10

Peskin, Jonah T. (Jonah Timothy) 1977. "Force control of electro-hydraulic actuators in an underwater fish-like vehicle." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86874.

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Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (p. 60-61).<br>by Jonah T. Peskin.<br>M.Eng.and S.B.

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11

Zanhar, Andrej. "Modeling, Identification and Control Design for an Electro-Hydraulic Rotator." Thesis, Linköping University, Department of Electrical Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54377.

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<p>Robotic manipulators have been introduced in industry as a form of increasing productivity. Today, there exist an interest to enlarge the application of these manipulators to outdoor environments. Forestry cranes used in the forestry industry are a clear example. A long term goal in this industry is the development of autonomous systems to increase the logging efficiency. In this thesis, we consider how to control the rotator of these cranes, which is an electro-hydraulically actuated motor, and is used to control the end ffector tool. Control system design for the rotator is a challenging

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12

Wang, Lijian. "Force equalization for active/active redundant actuation system involving servo-hydraulic and electro-mechanical technologies." Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0038/document.

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L'évolution vers les avions plus électriques engendre des efforts importants pour développer des actionneurs à source de puissance électrique pour les commandes de vol. Pour de telles applications critiques, il est peut être intéressant dans le futur d'associer à une même surface de contrôle un actionneur conventionnel à source de puissance hydraulique et un actionneur à source de puissance électrique mais ceci pose un problème important lorsque les deux actionneurs sont actifs simultanément: comme chacun essaye d'imposer sa position à l'autre,les deux actionneurs luttent l'un contre l'autre e

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13

Schneider, Wolfgang. "Fully variable, simple and efficient - electrohydraulic - valve train for reciprocating engines." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71231.

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A new camless electrohydraulic valve train concept for combustion engines was developed at Empa (Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland) and tested on a spark ignition passenger car engine. Besides full flexibility with regard to lift and timing of the engine gas exchange valves it features robustness, simplicity and in particular a low own drive power need due to a maximum of hydraulic energy recuperation. The engine test results confirm substantial efficiency gains in classical as well as in hybrid power trains while also maintaining additiona

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14

Reidl, Tim, Jürgen Weber, and Steffen Ihlenfeldt. "Investigation of energy management topologies for forming presses with electro hydrostatic drivetrains." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71190.

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Recent Power On Demand approaches, realized by using speed and/or displacement variable pump units, led to a significant increase of energy efficiency on hydraulic forming presses. In this paper we follow up on this development by laying the focus on the energy management and storage design of such machinery. With a derived fluidtronical model, we compare five different topologies that supply and manage the power flow for a forming press with die cushion. Our evaluation criteria are: energy consumption, minimization of the infeed power, and qualitative costs. For a representative forming cycle

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15

Tenali, Vijaya Sagar. "Simulation of electro-hydraulic servo actuator." Thesis, 2007. http://ethesis.nitrkl.ac.in/4295/1/Simulation_of_electro-hydraulic__servo_actuator.pdf.

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Hydraulic actuators are used in many applications like aircraft flight control, machinery and automobiles etc. This actuator when coupled with a feedback system is called a Servo Actuator. The response of the hydraulic actuator with time is significant particularly when the actuator is used for flight control operations. So finding the time response operation will be very helpful for the designer for analyzing the performance of the system. This also helps the designer to arrive at optimum design parameters of the hydraulic actuator. In this thesis a position control electro-hydraulic linear a

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16

Niksefat, Navid. "Design and experimental evaluation of robust controllers for electro-hydraulic actuators." 2003. http://hdl.handle.net/1993/19954.

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17

"Volume 2 – Conference." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A70917.

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We are pleased to present the conference proceedings for the 12th edition of the International Fluid Power Conference (IFK). The IFK is one of the world’s most significant scientific conferences on fluid power control technology and systems. It offers a common platform for the presentation and discussion of trends and innovations to manufacturers, users and scientists. The Chair of Fluid-Mechatronic Systems at the TU Dresden is organizing and hosting the IFK for the sixth time. Supporting hosts are the Fluid Power Association of the German Engineering Federation (VDMA), Dresdner Verein zur För

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