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Dissertations / Theses on the topic 'Thrust Bearings'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 May 2022

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1

Stahl, Brian James. "Thermal Stability and Performance of Foil Thrust Bearings." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1333722754.

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2

Dykas, Brian David. "FACTORS INFLUENCING THE PERFORMANCE OF FOIL GAS THRUST BEARINGS FOR OIL-FREE TURBOMACHINERY APPLICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1144261305.

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3

Glavatskikh, Sergei B. "On the hydrodynamic lubrication in tilting pad thrust bearings /." Luleå, 2000. http://epubl.luth.se/1402-1544/2000/34/index.html.

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4

Jackson, Robert L. "The wear and thermo-elastohydrodynamic behavior of thrust washer bearings under non-axisymmetric loads." Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-04112004-202135/unrestricted/jacksonIII%5Frobert%5Fl%5F200405%5Fphd.pdf.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2004.<br>Ye, Wenjing, Committee Member ; Qu, Jianmin, Committee Member ; Bauchau, Olivier, Committee Member ; Wang, Q. Jane, Committee Member ; Green, Itzhak, Committee Chair. Includes bibliographical references (leaves 261-267).

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5

Yuan, John Haojiang. "Experimental investigation of large spring-supported thrust bearings used in hydroelectric generators." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0017/NQ53526.pdf.

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6

Blumber, Eric Joseph. "Testing of a Magnetically Levitated Rocket Thrust Measurement System Demonstrator for NASA." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/33753.

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Existing thrust measurement systems (TMSs) at NASA Stennis Space Center use strain gauges and flux plates to measure forces produced by a test article. Alignment and calibration can take two weeks or more every time a piece of hardware or test article is changed. Cross axis loading is also problematic because it is impossible to perfectly align the flex plates and strain gauges in the thrust direction. In response to these problems, a magnetically levitated thrust measurement system has been proposed and a 300lb capacity demonstrator has been designed and built. In this design, the magneti

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7

Bruckner, Robert Jack. "Simulation and Modeling of the Hydrodynamic, Thermal, and Structural Behavior of Foil Thrust Bearings." Case Western Reserve University School of Graduate Studies / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=case1089304186.

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8

Jackson, Robert Lee III. "The wear and thermo-elastohydrodynamic behavior of thrust washer bearings under non-axisymmetric loads." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5230.

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The goal of this work is to investigate the physical mechanisms that distress thrust washer bearings through physical modeling and numerical techniques. The thrust washer bearing is subjected to non-axisymmetric loads within the planetary gear sets of automatic transmissions in automobiles. In practice the thrust washer bearing often distresses severely and unpredictably, causing transmission breakdown and liability issues. A specially designed thrust washer bearing test rig allows for controlled variation of the operational parameters (speed, load, lubrication flow rate, etc.) governing th

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9

Myers, Kyle J. "Design of Experimental Apparatus for Expedited Testing of Thrust Bearings under Varying Real World Conditions." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou149242635911249.

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10

Lehn, Andreas [Verfasser], Bernhard [Akademischer Betreuer] Schweizer, and Olaf [Akademischer Betreuer] Wünsch. "Air foil thrust bearings: A thermo-elasto-hydrodynamic analysis / Andreas Lehn ; Bernhard Schweizer, Olaf Wünsch." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/1134865988/34.

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11

Charitopoulos, Anastasios. "Computational Fluid Dynamics study of heavily loaded fixed-pad thrust bearings operating under thermoelastohydrodynamic regime." Thesis, Poitiers, 2020. http://www.theses.fr/2020POIT2285.

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Dans la présente thèse sont étudiés les effets des déformations thermiques sur les performances des butées à patin fixe fonctionnant sous des charges et des températures élevées. Le travail présenté se compose de deux parties principales. Dans une première étape, afin d'identifier les mécanismes de génération de pression dans les butées à surfaces parallèles, les différentes théories proposées dans la littérature scientifique ont été évaluées. À cette fin, un modèle thermoélastohydrodynamique (TEHD) basé sur la Dynamique de Fluides Numérique (CFD) a été généré, en tenant compte tous les phénom

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12

Марцинковсикй, В. С., В. И. Юрко, Ю. С. Филоненко, Viacheslav Borysovych Tarelnyk, В`ячеслав Борисович Тарельник та Вячеслав Борисович Тарельник. "Проектирование упорных подшипников скольжения с высокой несущей способностью". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/21583.

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Изложены результаты комплекса работ фирмы ООО "ТРИЗ" по модернизации упорных подшипников скольжения. Принятые и реализованные оригинальные технические решения позволили в несколько раз повысить несущую способность и существенно снизить расход смазочного масла при сохранении основных размеров. Приведены конструкции разработанных упорных подшипников и их характеристики. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/21583<br>Results of "TRIZ" LTD Company series of works for modernization of fluid film thrust bearings are stated. The taken and real

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13

Žatko, Miroslav. "Výpočtová analýza dynamických vlastností axiálních ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229361.

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This master´s thesis solves the problem of stationary viscous flow of incompressible fluids in thin layers of fluid film lubrication in fixed pad thrust bearings. The parametric computational model of oil domain was created for investigation the distribution of pressure, velocity and thermal fields together with the determination of the basic parameters as axial force, heating up and friction loss. Subsequently this model was applied for investigation influence of uneven bearing clearance. The problem task was solved by final volume method in Ansys CFX 12.0 software.

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14

Jackson, Robert Lee III. "An investigation of the wear and lubrication of a thrust washer system in an automatic transmission planetary gearset." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16853.

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15

Lavergren, Joel, Petri Suoranta, and Hampus Wranér. "MODELLBASERAD ANALYS AV AXIALGLIDLAGER I TUNGA LASTBILAR." Thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192088.

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This Bachelor thesis at KTH Royal Institute of Technology in Stockholm covers a model-based analysis of thrust washer bearings in heavy trucks. This work treats Scania CV AB’s range-splitter gearbox. In this gearbox there are thrust washer bearings which are analyzed in this study. The purpose of the study is to examine the stresses the bearings are experiencing during load, determine which bearing (front or rear) that is most highly stressed, and discuss the cause for that. At large axial forces, which in turn lead to greater friction and thermal stress, there is a large risk for severe wear.

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16

Hjalmarsson, Joel, and Anes Memic. "FE Analysis of axial-bearing in large fans : FE analys av axialkullager i stora fläktar." Thesis, Linnaeus University, School of Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-6663.

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<p>Detta examensarbete har utförts på Fläktwoods AB i Växjö, som producerar stora axialfläktar för olika industriapplikationer. Syftet är att öka kunskapen om fettsmorda axiella kullager genom FE analyser.</p><p>Projektet har genomförts i fem delsteg för att avgöra påverkan av en eller några få parametrar i taget. De studerade parametrarna är: elementstorlek, kontaktstyvhet, last, lagergeometri (dvs. oskulation), ickelinjär geometri och ickelinjära materialegenskaper (dvs. plasticitet).</p><p>Slutsatsen är att elementstorleken bör väljas fint nog för att ge ett jämnt resultat men grovt nog för

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17

Dickman, Joseph Robert. "An Investigation of Gas Foil Thrust Bearing Performance and its Influencing Factors." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1270153301.

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Thesis (Master of Engineering)--Case Western Reserve University, 2010<br>Department of EMC - Mechanical Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

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18

Ashman, D. "High-speed performance of a hydrostatic thrust bearing." Thesis, University of Wolverhampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378961.

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The programme of research reported in this dissertation was undertaken with the aim of improving the high-speed performance of a multi-recessed hydrostatic thrust bearing. A theoretical analysis of the quasi-static behaviour and isothermal frictional power consumption is developed using the basic equations governing viscous fluid flow. The effects of high peripheral speeds are discussed and how recently proposed bearing modifications, in the form of grooved lands and changes in recess geometry, are used to reduce the frictional power consumption, lower operating temperatures, and reduce unwant

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19

Alabraba, M. "An experimental investigation of the dynamic behaviour of an externally pressurized thrust bearing." Thesis, University of Salford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356183.

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20

Siripuram, Ravinder Babu. "ANALYSIS OF HYDRODYNAMIC EFFECTS OF MICROASPERITY SHAPES ON THRUST BEARING SURFACES." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_theses/309.

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The present thesis is a comparative study of the hydrodynamic effects of a few deterministic microasperity shapes in a thrust slider application. Numerical study based on finite difference methods is used to find the trend of important tribological properties such as friction and leakage. Also, this work utilizes a distinctive and practical approach for comparison by considering constant load conditions, instead of constant film thickness, as is expected in an operating thrust bearing. The results are encouraging and clearly reveal the existence of a transition point

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21

Evans, Marc T. "The steady performance of a porous and compliant aerostatic thrust bearing." Thesis, Aston University, 1987. http://publications.aston.ac.uk/11900/.

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Recent developments in aerostatic thrust bearings have included: (a) the porous aerostatic thrust bearing containing a porous pad and (b) the inherently compensated compliant surface aerostatic thrust bearing containing a thin elastomer layer. Both these developments have been reported to improve the bearing load capacity compared to conventional aerostatic thrust bearings with rigid surfaces. This development is carried one stage further in a porous and compliant aerostatic thrust bearing incorporating both a porous pad and an opposing compliant surface. The thin elastomer layer forming the c

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22

Prewitt, Thomas Joseph. "Quasi-static, Deformable-body Analysis of a Face Gear-Thrust Bearing System." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1344867144.

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23

Tomek, Ondřej. "Zvýšení únosnosti kluzného axiálního ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228799.

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The Master Thesis describes knowlege in thrust bearings with solid segments. Contains analysis of thrust bearing used in NR/20SJ turbochargers. Further designs new thrust bearing with enhancement of load carrying capacity. The new thrust bearing and the old one are tested and compared.

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24

Hughes, Susan J. "A study of the distribution of pressure and flow in a dynamic gas thrust bearing." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305543.

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25

Bailey, Nicola Y. "Analysis of dynamical performance and contact for a high speed thrust bearing including slip effects." Thesis, University of Nottingham, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.727115.

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Fluid-lubricated thrust bearing technology comprises two structural components, a rotor and stator separated by a thin fluid film experiencing relative rotational motion. The fluid film is employed to maintain a clearance between rotating and stationary elements when subjected to external axial loads. The fluid film lubrication mechanism is designed to provide an improved performance for applications characterized by high differential speed and requiring low frictional losses. An incompressible fluid flow model is derived for a parallel and coned thrust bearing using a modified Reynolds equati

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26

Chatzisavvas, Ioannis [Verfasser], Bernhard [Akademischer Betreuer] Schweizer, and Wolfgang [Akademischer Betreuer] Seemann. "Efficient Thermohydrodynamic Radial and Thrust Bearing Modeling for Transient Rotor Simulations / Ioannis Chatzisavvas ; Bernhard Schweizer, Wolfgang Seemann." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2018. http://d-nb.info/116838088X/34.

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27

Ochulo, Ikechi. "Optimalizace tvaru mazací mezery hydrodynamického ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-451223.

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The objective of this Master's thesis is to find, using genetic algorithm (GA), an optimal profile for lubricating gap of a thrust bearing of a turbocharger. Compared to the analytical profile, the optimal profile is expected to have minimized friction for an equivalent load capacity. Friction minimization is one way to increase the efficiency of the thrust bearing; it reduces the friction losses in the bearing. An initial problem was given: a thrust bearing with Load capacity 1000 N, inner and outer radii of 30mm and 60mm respectively, rotor speed of 45000 rpm and angle of running surface of

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28

Sawadkosin, Paranee. "Optimalizace tvaru strojních součástí s vlivem variabililty vstupních údajů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401572.

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The objective of this Master’s thesis is to find shape optimal design based on min- imizing friction force of thrust bearing by using genetic algorithm(GA) which is one of an optimization toolbox in Matlab. Reducing the friction force of thrust bearing is one way of making shaft to decreasing friction losses. With four parameters of thrust bearing geometry number of segments(m), angle of running surface(), segment inner radius(R0), and segment outer radius(R1) substitute in Reynolds’ equation. In order to know friction force, it is necessary to generate a connecting variable, oil film thicknes

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29

Denis, Sébastien. "Analyse dynamique d'une ligne d'arbre verticale supportée par une butée à patins oscillants." Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT2335/document.

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Les problèmes vibratoires sont l'une des principales causes des maintenances effectuées sur les turbines de barrages hydroélectrique en France. Dans cette thèse CIFRE, subventionnée par la Division Technique Générale d’Électricité de France à Grenoble, nous voulons étudier numériquement les phénomènes physiques en jeu.Pour cela, chaque partie composant ce type de machine tournante est modélisée : la ligne d'arbre, les accouplements rigides, les paliers hydrodynamiques, la butée hydrodynamique à patins oscillants, les étanchéités et les efforts électromagnétiques. Celui du rotor est basé sur un

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30

Přibyl, Jan. "Optimalizace tvaru mazací mezery hydrodynamického ložiska s využitím metamodelování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401543.

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The aim of my diploma thesis was to optimize the gap shape of a turbocharger thrust (axial) bearing using the metamodeling. In its first part, the thesis focuses on introduction of optimization and metamodeling, description of different metamodeling techniques and description of a turbocharger with focus on lubrication of thrust bearing. The second part contains a calculation model of flow through the lubrication gap, use of the techniques for compiling a metamodel and the evaluation of individual techniques. Specifically, the methods used are response surfaces and kriging.

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31

Kunik, Serguei. "Étude numérique et expérimentale du mécanisme de lubrification eX-Poro-HydroDynamique (XPHD)." Thesis, Poitiers, 2018. http://www.theses.fr/2018POIT2264/document.

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La lubrification eX-Poro-HydroDynamique (XPHD) est un mécanisme de lubrification d’inspiration biomimétique. Il s’agit principalement d’un écoulement dans un milieu poreux, dont la phase solide représentée par des fibres, induit des forces élastiques de compression considérées comme négligeables par rapport aux forces hydrodynamiques générées à l’intérieur du milieu poreux. L’idée essentielle de la lubrification XPHD consiste en remplacement du matériau antifriction et du film de fluide mince, traditionnellement utilisé dans les solutions classiques, par une couche poreuse imbibée d’un fluide

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32

Henry, Yann. "Analyse expérimentale de l'effet de la texturation des patins sur le comportement des butées hydrodynamiques à géométrie fixe." Thesis, Poitiers, 2013. http://www.theses.fr/2013POIT2321/document.

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La texturation de surface est une thématique récente qui suscite un certain engouement pour les contacts dynamiques. Pendant de nombreuses années, les tribologues ont privilégié les surfaces lisses aux faibles rugosités pour limiter le frottement. Inspiré des rugosités de surface organisées observées dans la nature, les topologies de surfaces sont désormais axées sur la texturation et la structuration des rugosités. Fort de ce potentiel, de nombreuses études traitent, par une approche numérique, la modélisation de ces surfaces et les études expérimentales sont rares, avec une instrumentation s

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33

Benali, Abdelkader. "Comportement dynamique des butées hydrodynamiques." Poitiers, 1988. http://www.theses.fr/1988POIT2011.

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34

Toumi, Mohamed Yessine. "Étude de l'endommagement des composants mécaniques soumis à de la fatigue de roulement dans le cadre d'une maintenance prédictive : cas des butées à billes." Thesis, Reims, 2015. http://www.theses.fr/2015REIMS033.

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Le roulement est un élément essentiel dans la conception des machines tournantes. À l'échelle industrielle, sa défaillance peut avoir de coûteuses conséquences. La maintenance prédictive sert à minimiser les coûts d'entretien et à prévenir de l'état de fatigue du composant mécanique. Dans ce cadre, nous proposons une étude de l'endommagement par fatigue de contact de roulement appliquée au cas des butées à billes. Cette étude se structure en deux axes : numérique et expérimental. Le premier consiste à établir une modélisation numérique tridimensionnelle dynamique du passage cyclique d'une bill

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35

Pérez-Loya, J. J. "Analysis and control of magnetic forces in synchronous machines." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328086.

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In a synchronous machine, radial, tangential, and axial forces are generated. In this thesis, three different technologies to control them are proposed. The first one, involves the utilization of the radial forces that arise between the rotor and the stator. This is achieved by segmenting the rotor field winding into groups of poles and controlling their corresponding magnetization individually. This technology is particularly useful to achieve magnetic balance and to create controllable radial forces. The second technology, involves the control of the rotor field in order to influence the tan

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36

Gherca, Andrei. "Modélisation de la lubrification des surfaces texturées - Application à la butée en régime hydrodynamique." Phd thesis, Université de Poitiers, 2013. http://tel.archives-ouvertes.fr/tel-00943143.

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La compréhension et la modélisation d'un contact lubrifié en présence de texturation nécessitent une description physique très fine pour comprendre les analyses contradictoires et pour expliquer les résultats très différents en terme de performance présentés dans la littérature internationale. De nombreuses études théoriques et expérimentales ont montré que la texturation des surfaces pourrait améliorer les caractéristiques tribologiques des contacts. La capacité de charge, le coefficient de frottement et la résistance à l'usure sont les principales caractéristiques susceptibles d'être amélior

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37

Kosar, Jakub. "Konstrukční řešení reverzní vírové turbiny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416611.

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The thesis deals with the construction design of reversible swirl turbine used in a tidal range power plant for bidirectional operation. The theoretical part provides an overview of state-of-the-art technologies in the usage of tidal energy, mostly by means of tidal range and stream tidal power plants. It also analyses respective designs of tidal turbines and their advantages and disadvantages. The practical part of the thesis demonstrates individual steps applied when examining loading forces and also shows the design method and strength inspection procedure of the turbine and its parts, espe

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Esser, Paul R. "Measurements versus Predictions for a Hybrid (Hydrostatic plus Hydrodynamic Thrust Bearing for a Range of Orifice Diameters." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-8002.

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A fixed geometry hybrid thrust bearing is investigated with three different supply orifice diameters. The test rig uses a face-to-face thrust bearing design, with the test bearing acting as the rotor loading mechanism. A hydraulic shaker applies the static axial load, which is reacted by a second thrust bearing. The rotor is supported radially by two water-lubricated fluid film journal bearings and is attached to a 30,600 rpm motor via a high speed coupling with very low axial stiffness. Thrust bearings with three different orifice diameters (1.63, 1.80, and 1.93 mm) are tested for a range of

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39

Zheng, Wen-Zong, and 鄭文宗. "Analysis of thrust bearings areodynamic effect." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/19415633379340898409.

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碩士<br>國立彰化師範大學<br>機械工程學系<br>90<br>In this paper, an investigation into the different types of aerodynamic thrust bearings is presented by describing a numerical method in which Reynolds’ equation was solved in finite difference form. The theoretical method developed is capable of calculating the pressure distribution in the gas-lubricated film. Moreover the load-carry capability as a separating force and the stiffness of aerodynamic thrust bearings are found out by Simpsons’ Rule. According to this paper analysed, aerodynamic thrust bearings’ results are following: 1. There are four

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40

詹英文. "Discrete parametric analysis of pneumatic thrust bearings." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/74409677529395891482.

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41

Wu, Yi-Ting, and 吳宜亭. "An Investigation In Machine Design of Thrust Bearings." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/78690304356150531191.

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碩士<br>中原大學<br>機械工程研究所<br>101<br>This paper content is for thrust bearing simulation design analysis, is also based on Cast bronze thrust bearing design manual algorithms computing through program computing services that help the designer can easily get the required performance parameters. This paper has discussed Stepped-Land, Tapered-Land, Pocket three types of optimum design dimensions modified to the size, the best design is selected. This article uses Microsoft Visual Studio build hydrodynamic thrust bearing computing services in stand-alone test for the Windows Azure platform. Temperature

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42

Tsai, Chi-Wen, and 蔡棋文. "An Investigation in Optimal Design of Hydrodynamic Thrust Bearings." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/25548197847700331391.

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碩士<br>中原大學<br>機械工程研究所<br>103<br>In this study, the property are optimal design for the thrust bearing. The thrust bearing have three types, stepped-land, pocket and tapered-land respectively. The thrust bearing design methods is used the known conditions and design parameters into numerical calculation, export the properties include film thickness, friction power, temperature and flow rate, compare the property difference. According to the “Cast Bronze Thrust Bearing Design Manual”, the bearing design and optimal design methods can be planning. Use the same conditions, compare the optimal

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43

Lehn, Andreas. "Air foil thrust bearings: A thermo-elasto-hydrodynamic analysis." Phd thesis, 2017. https://tuprints.ulb.tu-darmstadt.de/6272/7/Dissertation_AndreasLehn_korrigiert.pdf.

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A computational model for bump type air foil thrust bearings, which belong to the class of compliant hydrodynamic bearings, is developed. The computational model is able to calculate the pressure and temperature distribution in the bearing as well as the structural deformations of the bearing parts. Hydrodynamic, elastic, and thermal aspects of air foil thrust bearings are analysed in detail and design guidelines are derived. Systematic optimisation studies are performed for the shape of the lubricating gap with respect to a maximal load capacity. A Reissner-Mindlin type shell theory is applie

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44

LIN, DE-GUO, and 林德國. "Dynamic characteristics of porous rectangular thrust bearings lubricated with gas." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/38925418183774846360.

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Marques, Rui Bertão Patrício Martins. "Friction Torque in Thrust Ball Bearings Lubricated with Polymeric Greases." Dissertação, 2013. https://repositorio-aberto.up.pt/handle/10216/88901.

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Marques, Rui Bertão Patrício Martins. "Friction Torque in Thrust Ball Bearings Lubricated with Polymeric Greases." Master's thesis, 2013. https://repositorio-aberto.up.pt/handle/10216/88901.

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47

YANG, ZHENG-YI, and 楊正義. "Theoretical investigation of externally pressurized gas porous thrust bearings in motion." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/54834521871192635033.

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48

Coimbra, António João Monteiro Paiva. "Power loss in cylindrical roller thrust bearings lubricated with automotive gear oils." Dissertação, 2015. https://repositorio-aberto.up.pt/handle/10216/79527.

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49

Pinho, Samuel Pinto. "Friction torque in thrust ball bearings: influence of thickener type and concentration." Dissertação, 2014. https://repositorio-aberto.up.pt/handle/10216/76154.

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50

Coimbra, António João Monteiro Paiva. "Power loss in cylindrical roller thrust bearings lubricated with automotive gear oils." Master's thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/79527.

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