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Relevant bibliographies by topics / Electromechanical actuation / Dissertations / Theses

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Dissertations / Theses on the topic 'Electromechanical actuation'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Ermert, Markus. "Electromechanical actuator concept for the controlled and direct actuation of a hydraulic main stage." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200729.

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Hydraulic main stages for off highway machines have usually electromagnetic driven pilot valves. You rarely find stepper motor driven pilot systems that are directly positioning the main spool in the sectional control valve. The presented concept shows the development of an actuator in a unique setup to fulfill the requirements of most off- highway applications. Precise positioning, strength, speed and fail safe requirements were the main goals of the concept. The concept has a two phase BLDC transversal flux motor with a single gear stage transmission. The software and control unit are specia

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2

Rottach, Michael. "Drive-system optimisation for a helicopter electromechanical actuation system." Thesis, University of Nottingham, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.718988.

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More-electric aircraft architectures are an approach to increase the efficiency of aircraft as well as to reduce the environmental impact and operational costs. This thesis describes concepts for electromechanical actuation systems for a helicopter primary flight control application. This work has been undertaken as part of the HEMAS project within the European Clean Sky JTI. The work compares electromechanical actuator (EMA) topologies suitable for the helicopter application. Fault-tolerance in the EMA system and its subcomponents is needed to comply with stringent safety requirements. Furthe

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3

Maydew, M. "Advanced actuation systems for the more electric aircraft." Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274222.

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4

Racine, Evan Michael. "Experimental Study - High Altitude Forced Convective Cooling of Electromechanical Actuation Systems." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1450286609.

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5

Lammers, Zachary A. "Thermal Management of Electromechanical Actuation System for Aircraft Primary Flight Control Surfaces." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1399021324.

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6

Barnett, Street. "Laboratory Test Set-up to Evaluate Electromechanical Actuation System for Aircraft Flight Control." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1429461885.

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7

Wroble, Daniel G. "Force Fight Study in a Dual Electromechanical Actuator Configuration." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1512641850024148.

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8

Seemann, Sebastian [Verfasser]. "Conceptual Design of a Fault-Tolerant Electromechanical System for Helicopter Swashplate Actuation / Sebastian Seemann." München : Verlag Dr. Hut, 2017. http://d-nb.info/1135596506/34.

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9

Lin, Ching-Yu 1972. "Material characterization and modeling for piezoelectric actuation and power generation under high electromechanical driving levels." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8100.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.<br>Includes bibliographical references (p. 257-262).<br>High electromechanical loads parallel to piezoelectric polarization might result in depolarization of the material, depending on the material property itself and the external excitations such as electrical field, electrical driving frequency, stress and stress duration. In this work, material properties under these effects were first characterized experimentally. The experiments included monitoring general piezoelectric responses of PZT-5H

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10

Bindl, Jared C. "Multi-pole permanent magnet motor design and control for high performance electromechanical actuation in all electric aircraft." Honors in the Major Thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1359.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Engineering and Computer Science<br>Electrical Engineering

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11

Arriola, Gutierrez David Antonio [Verfasser]. "Model-based Design and Fault-tolerant Control of an Actively Redundant Electromechanical Flight Control Actuation System / David Antonio Arriola Gutierrez." Düren : Shaker, 2019. http://d-nb.info/1198601094/34.

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12

Woodburn, David. "Modeling and Simulation of All-electric Aircraft Power Generation and Actuation." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6037.

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Modern aircraft, military and commercial, rely extensively on hydraulic systems. However, there is great interest in the avionics community to replace hydraulic systems with electric systems. There are physical challenges to replacing hydraulic actuators with electromechanical actuators (EMAs), especially for flight control surface actuation. These include dynamic heat generation and power management. Simulation is seen as a powerful tool in making the transition to all-electric aircraft by predicting the dynamic heat generated and the power flow in the EMA. Chapter 2 of this dissertation des

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13

Råberg, Ingela. "Efficiency verification of an electromechanical linear actuator." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-303147.

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Cascade Drives has developed an electromechanical linear actuator with a patented feature which allows for load sharing between multiple pinions interacting on the same rack. This arrangement has proven resilient for shock loads, and allows for compact gearbox designs with very high load rating. For the further development of the actuators, access to proper simulation models for various gearbox behaviours is important. One such behaviour is that of the gearbox efficiency. In 2020, a Simulink model for predicting the gearbox efficiency was produced. The aim of this thesis has been to verify the

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14

Scott, Eric Landon. "Criteria based actuator control /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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15

Rutledge, Matthew S. "Aircraft Gearbox Dynamics Subject to Electromechanical Actuator Regenerative Energy Flow." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1292358176.

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16

Montazami, Reza. "Smart Polymer Electromechanical Actuators for Soft Microrobotic Applications." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/28084.

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Ionic electroactive polymer (IEAP) actuators are a class of electroactive polymer devices that exhibit electromechanical coupling through ion transport in the device. They consist of an ionomeric membrane coated with conductive network composites (CNCs) and conductive electrodes on both sides. A series of experiments on IEAP actuators with various types of CNCs has demonstrated the existence of a direct correlation between the performance of actuators and physical and structural properties of the CNCs. Nanostructure of CNC is especially important in hosting electrolyte and boosting ion mobilit

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17

Lim, Jung Youl. "A distributed multi-level current modeling method for design analysis and optimization of permanent magnet electromechanical actuators." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53990.

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This thesis has been motivated by the growing needs for multi-degree of freedom (M-DOF) electromagnetic actuators capable of smooth and accurate multi-dimensional driving motions. Because high coercive rare-earth permanent-magnets (PMs) are widely available at low cost, their uses for developing compact, energy-efficient M-DOF actuators have been widely researched. To facilitate design analysis and optimization, this thesis research seeks to develop a general method based on distributed source models to characterize M-DOF PM-based actuators and optimize their designs to achieve high torque-to

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18

Pettersson, Alexander, and Patrik Storm. "Modeling and Control of Electromechanical Actuators for Heavy Vehicle Applications." Thesis, Linköpings universitet, Fordonssystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-78431.

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The possibility to develop control systems for electromechanical actuators at Scania is studied, in particular the focus is on how to exchange the intelligent actuators used today with dumb ones. An intelligent actuator contains its own control electronics and computational power, bought as a unit from suppliers by Scania and controlled via the CAN bus. A dumb actuator contains no means of controlling itself and its I/O is the motor’s power pins. Intelligent actuators tend to have limited control performance, time delays and poor diagnose systems, along with durability issues. A dumb actuator

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19

Caulfield, F. Donald. "Electromechanical Actuator Development for Integrated Chatter Prediction on High Speed Machining Centers." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-04222002-234733/.

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Machine tool chatter imposes limitations on the productivity and quality of modern high speed machining (HSM) operations. It has been shown that chatter prediction and avoidance strategies can lead to increased machining productivity if certain modal characteristics of the machine are known. The objectives of this research are to design and demonstrate an electromechanical actuator (EMA) to easily and accurately identify these characteristics. Design specifications for this actuator reflect a wide range of machine tools and operating conditions. A simulation-based design strategy is employed,

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20

Du, Xinli. "High redundancy actuator." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/12232.

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High Redundancy Actuation (HRA) is a novel type of fault tolerant actuator. By comprising a relatively large number of actuation elements, faults in the elements can be inherently accommodated without resulting in a failure of the complete actuation system. By removing the possibility of faults detection and reconfiguration, HRA can provide high reliability and availability. The idea is motivated by the composition of human musculature. Our musculature can sustain damage and still function, sometimes with reduced performance, and even complete loss of a muscle group can be accommodated through

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21

Hu, Gongfan. "Computer aided analysis and design of a single phase induction actuator." Thesis, University of Dundee, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334764.

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22

Sawant, Ronit Prasad. "COMSOL Multi-physics model for Transition Metal Dichalcogenides (TMD’s)-Nafion composite Based Electromechanical Actuators." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1261.

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The ability to convert electrical energy into mechanical motion is of significant interest in many energy conversion technologies. For more than a decade Ionic polymer-metal composite (IPMC) as an electroactive smart polymer material has been extensively studied and has shown great potential as soft robotic actuators, artificial muscles and dynamic sensors in the micro-to-macro size range. IPMC consists of an ion exchange polymer membrane sandwiched between two noble metal electrodes on either side of the membrane. Under applied potential, the IPMC actuator results in bending deformation becau

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23

Tanguy, Quentin. "Design and fabrication of a MEMS scanner for OCT imaging endo-microscopic probe." Thesis, Bourgogne Franche-Comté, 2018. http://indexation.univ-fcomte.fr/nuxeo/site/esupversions/8d6ab7ed-eac5-4e11-997b-f9e9af4e8808.

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Les travaux présentés dans cette thèse reposent d'une part sur le design et la modélisation electro-thermo-mécanique d'un micro scanner optique et d'autre part sur sa fabrication, et sa caractérisation ainsi qu'un début d'intégration à un micro interféromètre de Mirau pour le développement d'une sonde endoscopique conçue pour la détection des cancers gastrointestinaux dans leur phase initiale par une technique d'imagerie appelée Tomography de Cohérence Optique (OCT). Le coeur de la contribution de cette thèse porte sur le développement et la fabrication de micro actionneurs commandés thermique

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24

Phillips, Paul. "Health monitoring of electrical actuators for landing gears." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/health-monitoring-of-electrical-actuators-for-landing-gears(ae78f7ca-32fe-44fa-aea2-c742abf8e796).html.

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There are numerous benefits associated with replacing hydraulic actuators with electrical counterparts as part of an all electric landing gear including reduced consumption of non-propulsive engine power, reduced weight, reduced cost and the elimination of hydraulic systems. The development of health monitoring systems to support the introduction of electrical actuation systems into landing gears will aid in guaranteeing reliability and to optimise landing gear maintenance activities. One of the difficulties with designing health monitoring for industrial integration involves the large number

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25

Qiu, Yihui Ph D. Massachusetts Institute of Technology. "Advanced modeling ,control, and design of an electromechanical engine value drive system with a limited-angle actuator." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46792.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 241-242).<br>This thesis addresses a specific variable valve actuation (VVA) system ---- an electromechanical valvetrain ---- in order to provide variable valve timing (VVT) in internal combustion (IC) engines. This electromechanical valve drive (EMV) system was proposed by Dr. Woo Sok Chan

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26

BELMONTE, DARIO. "MODEL BASED CORRELATION METHODS FOR FAULTS DETECTION AND IDENTIFICATION ALGORITHMS ON ELECTROMECHANICAL ACTUATORS USED IN PRIMARY FLIGHT CONTROL SYSTEMSMODEL BASED CORRELATION METHODS FOR FAULTS DETECTION AND IDENTIFICATION ALGORITHMS ON ELECTROMECHANICAL ACTUATORS USED IN PRIMARY FLIGHT CONTROL SYSTEMS." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2746072.

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Mami, Delphine. "Définition, conception et expérimentation de structures d’actionneurs électromécaniques innovants incluant par conception des fonctionnalités de sûreté et de sécurité de fonctionnement." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0118/document.

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Avec l’avènement des nouvelles générations d’avions civils et militaires, la démarche d’électrification des fonctions de commande de vol est aujourd’hui pleinement engagée, depuis les interfaces homme-machine jusqu’aux actionneurs de puissance. En vue de s’affranchir définitivement des inconvénients propres à l’utilisation de l’énergie hydraulique, l’utilisation d’actionneurs purement électromécaniques (EMA) constitue en toute logique une étape clef des évolutions technologiques à venir. Ce projet de recherche a pour objectif de développer l'une des briques technologiques majeures du système d

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Kanda, Masae. "High strain electrostrictive polymers : elaboration methods and modelization." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0067/document.

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La thèse porte de manière générale sur les polymères électrostrictifs qui peuvent être utilisés soit comme actionneurs électromécaniques souples, soit comme capteurs ou récupérateurs d’énergie. Le premier chapitre est une introduction générale aux systèmes couplés électromécaniques. Le choix des matériaux est exposé et porte sur les élastomères diélectriques et les polyuréthanes (PU) chargés par des nanoparticules conductrices de noir de carbone (CB). Le second chapitre porte sur la réalisation des films. Des particules de CB sous forme de micelles préformées et une technique « solution-cast »

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Sienkiewicz, Lukasz Krzysztof. "Concept, implementation and analysis of the piezoelectric resonant sensor / Actuator for measuring the aging process of human skin." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0047/document.

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L’objectif de cet projet est la conception, réalisation et caractérisation d’un actionneur / capteur piézoélectrique piézorésonant destiné à la mesure du vieillissement de la peau humaine. L’étude présentée est le fruit d’une collaboration entre le groupe de recherche de l'Electrodynamique du INP-ENSEEIHT (Toulouse), LAPLACE Laboratoire de Recherche et l'École Polytechnique de Gdask, Département Génie Electrique et Automatique. Un concept d’actionneur / capteur pour la caractérisation des propriétés mécaniques des tissus mous a été présenté. Un actionneur piézoélectrique résonant, appelé "unim

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BERTOLINO, ANTONIO CARLO. "High Fidelity Model of Ball Screws to Support Model-based Health Monitoring." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2846615.

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Gibbs, John H. "Actuated Continuously Variable Transmission for Small Vehicles." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1238819759.

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32

Kanda, Masae. "High strain electrostrictive polymers : Elaboration methods and modelization." Electronic Thesis or Diss., Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0067.

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La thèse porte de manière générale sur les polymères électrostrictifs qui peuvent être utilisés soit comme actionneurs électromécaniques souples, soit comme capteurs ou récupérateurs d’énergie. Le premier chapitre est une introduction générale aux systèmes couplés électromécaniques. Le choix des matériaux est exposé et porte sur les élastomères diélectriques et les polyuréthanes (PU) chargés par des nanoparticules conductrices de noir de carbone (CB). Le second chapitre porte sur la réalisation des films. Des particules de CB sous forme de micelles préformées et une technique « solution-cast »

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33

Fritz, Martin [Verfasser], and A. [Akademischer Betreuer] Albers. "Methodische Entwicklung modellbasierter Überwachungsfunktionen für mechatronische Systeme im Kraftfahrzeug am Beispiel eines elektromechanischen Radbremsaktors = Methodological Development of Model-Based Supervision Functions for Mechatronic Systems in Motor Vehicles Using the Example of an Electromechanical Wheel Brake Actuator / Martin Fritz ; Betreuer: A. Albers." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1235072649/34.

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34

Estival, Pierre. "Concept Innovant d‘Actionneur Electromécanique pour la Commande de Vol d'Hélicoptère de Nouvelle Génération." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS137.

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Le travail présenté dans cette thèse porte sur l’étude du pré-dimensionnement d’un actionneur électromécanique à entrainement direct dans une chaine de commande de vol électrique d’un hélicoptère.Le dimensionnement de cet actionneur répond à un brevet déposé par Airbus Helicopters et les éléments composant l’actionneur devront remplir les critères de sécurité des équipements embarqués des fonctions critiques. Dans un premier temps, une méthode de pré-dimensionnement d’actionneur électromécanique et plus particulièrement de machine électrique est décrite à l’aide d’un modèle analytique. Ce modè

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Siala, Hana. "Tolérancement fonctionnel généralisé et intégration dans une approche d’ingénierie système." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC015.

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Pour un système mécatronique, le manque de robustesse est principalement dû à une ignorance de la variabilité qui est inévitable dans tout système conçu, à toutes les étapes de son développement et tout au long de son cycle de vie. En effet, les imperfections inhérentes aux processus de fabrication et les variations en fonctionnement telles que l'usure des matériaux ou les effets physiques multiples (thermiques, vibrations, etc.) impliquent des variations paramétriques susceptibles de dégrader le bon fonctionnement du système. Pour garantir un niveau de qualité élevé et pour améliorer la robus

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Sanchez, Florian. "Génération de modèles analytiques pour la conception préliminaire de systèmes multi-physiques : application à la thermique des actionneurs et des systèmes électriques embarqués." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30081/document.

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L'objectif de cette thèse est de fournir des méthodes et outils numériques dédiés à la conception préliminaire de systèmes multi-physiques, avec une attention particulière quant à l'évaluation des transferts thermiques mis en jeu dans les actionneurs et les systèmes électriques embarqués. Ce besoin émane de la recherche industrielle actuelle menant au développement de l'avion plus électrique ("More Electrical Aircraft " - MEA), qui met en œuvre de nouvelles technologies de systèmes embarqués où la gestion thermique de tels dispositifs est primordiale. Dans un premier temps, cette thèse propose

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37

Gutfrind, Christophe. "Optimisation des actionneurs électromécaniques de la boucle d’air d’un moteur thermique." Thesis, Supélec, 2012. http://www.theses.fr/2012SUPL0012/document.

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Les travaux de thèse présentent une étude comparative d'actionneurs électromécaniques à course limitée régulant la position d'un obturateur dans une boucle d'air d'un moteur thermique. Les normes européennes sur la limitation des rejets polluants imposent de nouveaux besoins sur les performances dynamiques et mécaniques des actionneurs. Un état de l’art sur la boucle d’air des moteurs thermiques montre que deux topologies d'actionnements sont devenus majoritaires : l’une se compose d’un moteur à courant continu (MCC) à balais et d’une transmission de puissance par engrenage, l’autre est une ma

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Nabawy, Mostafa. "Design of insect-scale flapping wing vehicles." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/design-of-insectscale-flapping-wing-vehicles(5720b8af-a755-4c54-beb6-ba6ef1a13168).html.

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This thesis contributes to the state of the art in integrated design of insect-scale piezoelectric actuated flapping wing vehicles through the development of novel theoretical models for flapping wing aerodynamics and piezoelectric actuator dynamics, and integration of these models into a closed form design process. A comprehensive literature review of available engineered designs of miniature rotary and flapping wing vehicles is provided. A novel taxonomy based on wing and actuator kinematics is proposed as an effective means of classifying the large variation of vehicle configurations curren

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Zgorski, Aloïs. "Commande en position et vitesse sans capteur mécanique de moteurs synchrones à aimants permanents à pôles lisses : Application à un actionneur électromécanique pour aileron." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00864216.

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Le problème de la commande sans capteur mécanique de la machine synchrone à aimants permanents (MSAP) est un problème très étudié dans le domaine de l'automatique et de l'électrotechnique. Le travail présenté s'intéresse au problème particulier de la commande sans capteur à basse vitesse des MSAP à pôles lisses. L'objectif est de proposer une méthode permettant de contrôler en position un actionneur électromécanique utilisé dans un contexte aéronautique (ici pour des ailerons). Une étude théorique des deux familles de machines, saillantes et non saillantes, a permis de montrer une différence d

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Gendrin, Martin. "Contribution au développement d'une mini-pelle tout-électrique : Approche prédictive pour la commande efficace et compliante des actionneurs électromécaniques." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI050/document.

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Les actionneurs électromécaniques supplantent les solutions d’actionnement hydrauliques concurrentes dans un nombre croissant d’applications industrielles, particulièrement en aéronautique. Ils le doivent à leurs rendements élevés et à une relative simplicité de commande. Fort de ces avantages, cette technologie a été mise en place dans le cadre du projet ELEXC, en vue de remplacer les vérins hydrauliques sur une mini-excavatrice tout-électrique et s’attaquant pour la première fois au secteur du bâtiment et des travaux publics. Cependant, cette intégration s’accompagne de doutes sur la perform

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Reysset, Aurelien. "Conception préliminaire d'actionneurs électromécaniques - outils d'aide à la spécification et à la génération de procédures de dimensionnement pour l'optimisation." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0003/document.

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Cette thèse a pour objectif d’apporter un ensemble d’outils logiciels s’inscrivant dans une méthodologie globale de conception de systèmes mécatroniques. Elle arrive en complément de travaux déjà menés au sein du laboratoire sur le pré-dimensionnement d’actionneurs aéronautiques de nouvelle génération : les actionneurs électromécaniques (EMA). Cette technologie apporte de nouvelles problématiques qui forcent les ingénieurs à modifier leur processus de développement et ce dès la phase de spécification où des profils de mission devront être générés/transformés/analysés de manière à simplifier la

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Chamiço, Sofia Amorim Almeida. "Development and characterization of poly-meric membranes for electromechanical actuation." Master's thesis, 2016. http://hdl.handle.net/10362/97474.

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Bioelectronics is a field still in development that will have a positive impact in individuals’ life worldwide creating promises and excitement. The organic materials “soft” nature offers better mechanical compatibility with tissue than traditional electronic materials, and have natural com-patibility with mechanically flexible substrates. One of those organic materials, PEDOT:PSS, has emerged in recent years as a champion material in some applications such as artificial muscles and as bending actuators for autofocus micro lens applications. This work aims at the research and production of th

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Xu, Jia-Hong, and 徐家鴻. "Design and Fabrication of Electromechanical Valve Actuation Mechanism for Camless Engine." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/67697310430090370737.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>95<br>For the sake of the environmental consciousness rising, it is necessary to improve internal combustion engine for high efficiency. Electromechanical valve actuator system (EMVA) uses solenoid to drive each valve independently for achieving variable valve timing (VVT). The main issues of the present research (EMVA) aims to the lower power source needed and hybrid magneto-motive force (MMF) usage. The design procedures depicted in the order as: establish mathematical model via magnetic circuit, optimization, and verified by FEA. The proposed prototype shows

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Xu, Jia-Hong. "Design and Fabrication of Electromechanical Valve Actuation Mechanism for Camless Engine." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2007200715443400.

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Wang, Jhih-Jhe, and 王志哲. "Pre-programmable Composite Material Electrets and Their Applications in Electromechanical Sensing and Actuation." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/3tczfd.

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Mashatan, Vahid. "Design and Development of an Actuation System for the Synchronized Segmentally Interchanging Pulley Transmission System (SSIPTS)." Thesis, 2013. http://hdl.handle.net/1807/43661.

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This Ph.D. thesis presents the design, modeling, optimization, prototyping, and experimental methodologies for a novel actuation system for the synchronized segmentally interchanging pulley transmission system (SSIPTS). The SSIPTS is an improved transmission which offers the combined benefits of existing transmission systems for the automotive, the power generation, and the heating, ventilation, and air conditioning (HVAC) industries. As a major subsystem of the SSIPTS, the Pulley Segment Actuation System (PSAS) plays a critical role in the SSIPTS operation and success. However, the overall de

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Carroll, James F. "Potassium sodium bismuth titanate ceramics : processing and property relationships for higher-temperature electromechanical actuation /." 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337718.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.<br>Source: Dissertation Abstracts International, Volume: 69-11, Section: B, page: 7075. Adviser: David A. Payne. Includes bibliographical references (leaves 130-140) Available on microfilm from Pro Quest Information and Learning.

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Vaculik, Stewart Andrew 1979. "A framework for electromechanical actuator design." 2008. http://hdl.handle.net/2152/18161.

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Electromechanical actuators are becoming an increasingly popular alternative to traditional hydraulic actuators for ship, aircraft, vehicle suspension, robotic, and other applications. These actuators generally include an electric motor, gear train, bearings, shafts, sensors, seals, and a controller integrated into a single housing. This integration provides the advantages of a single shaft, fewer bearings, and ultimately, reduced weight and volume. Research has shown that the motor and gear train are the most critical, performance-limiting components in an actuator, and balancing the performa

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Chih-Ying, Huang. "Vibration Analysis of Plates with Opto-Electromechanical Actuator." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0017-1901200710324658.

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Huang, Chih-Ying, and 黃智盈. "Vibration Analysis of Plates with Opto-Electromechanical Actuator." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/70142390093252000515.

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碩士<br>中原大學<br>機械工程研究所<br>94<br>The analysis of vibration for the rectangular plate under out-plane moment from opto-electromechanical actuators are considered. The rectangular plate is simply supported at all edges. The equation of rectangular plate motion including out-plane moment based on Tzou and Fu is presented. In order to show clearly the effects of active damping, structural damping is not considered. The equations of vibration are reduced to an ordinary differential equation by assuming mode shape and Galerkin’s procedure. Using Runge-Kutta method, the amplitude-time is determined. By

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