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Dissertations / Theses on the topic 'Calculation of hydrostatic bearing'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Foltýn, Jan. "Konstrukce hydrostatického uložení divadelní točny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444275.

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This thesis deals with the issue of hydrostatic bearings. The aim was to design a test rig for an axial hydrostatic bearing. The axial hydrostatic bearing was calculated and designed with respect to the function of the tester. The construction of the test equipment was further supported by calculations of the main parts together with FEM analyses. The design was also accompanied by an introduction to the hydraulic parts of the hydrostatic bearing, which took place in consultation with Bosch Rexroth. The aim of the work, the design of a test device in a scale of 1:10, was completed. The followi

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2

Wong, Anthony Raymond. "Design of a low cost hydrostatic bearing." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74951.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 77).<br>This thesis presents the design and manufacturing method for a new surface self compensating hydrostatic bearing. A lumped resistance model was used to analyze the performance of the bearing and provide guidance on laying out the bearing features. One arrangement of bearing features was cut into a flat sheet of ultra high molecular weight polyethylene which was then formed into a cylindrical shape. The shaped pl

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3

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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4

Mass, Igor, Andreas Hoppermann, and Hubertus Murrenhoff. "Control concept for a grease lubricated hydrostatic bearing." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71086.

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In industrial practice greases are mainly used as lubricants in hydrodynamic plain bearings and roller bearings. The use in hydrostatic bearings is avoided due to the difficult controllability. One reason is the complex non-Newtonian flow behavior of greases. The motivation for this paper is the use of greases to increase the efficiency of hydrostatic bearings. The assumption is that the so-called yield stress of consistent greases can lead to self-sealing behavior in the bearing under stationary operation conditions. Assuming a volume-flow-free operation of the bearing, a concept for the acti

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5

Rothenhöfer, Gerald S. (Gerald Sven). "Design, dynamic modeling, simulation and feedback control of hydrostatic bearing." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39888.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>Includes bibliographical references (p. 113).<br>A hydrostatic bearing carriage (Hydrocline) that uses an open face linear motor to drive the carriage as well as to preload the hydrostatic bearings has been developed by Professor Alexander Slocum and Gerald Rothenhöfer of the Massachusetts Institute of Technology's Mechanical Engineering Department. The Hydrocline is made to cope with the increasing requirements for accuracy in silicon wafer grinding machines. The prototype was built of aluminum oxi

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6

Zulkefli, Zamir Aimaduddin Bin. "MITIGATION OF GEAR MESH-FREQUENCY VIBRATIONS UTILIZING A HYDROSTATIC BEARING." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1354902949.

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Sawicki, Jerezy Teodor. "Experimental and theoretical determination of hydrostatic/hybrid journal bearing rotordynamic coefficients." Case Western Reserve University School of Graduate Studies / OhioLINK, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=case1056560686.

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8

Almond, R. J. "The development of a porous ceramic water hydrostatic bearing for ultra high precision applications." Thesis, Cranfield University, 1999. http://dspace.lib.cranfield.ac.uk/handle/1826/10572.

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The principal objective of this research was to produce a series of extremely stiff and thermally stable porous ceramic bearings, and to expand the performance envelope of fluid film technology beyond that currently achievable with conventional oil hydrostatic bearings. The driving force for these developments came from recent advances in ultra- precision and high speed machining, which have placed severe demands on the accuracy and performance of spindle and guide-way bearing systems. A critical part of this research was to develop a material processing methodology, which enabled porous ceram

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9

Mertz, David Hunter. "Lift-off performance in flexure pivot pad and hybrid bearings." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3197.

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10

Kim, Paul Y. "A new method for the critical speed calculation of rotor-bearing systems." Thesis, University of Ottawa (Canada), 1987. http://hdl.handle.net/10393/5135.

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11

Anderson, Colin George. "First assessment of the magnetic-hydrostatic main bearing proposed for the duck wave-energy converter." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/13318.

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12

Horvat, Frank Eugene. "Experimental and Numerical Analysis of Flow and Pressure Fields Inside a Variable Depth Single Pocket Hydrostatic Bearing." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1217254306.

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13

Saito, Hayate. "Development of Silyl Groups Bearing Bulky Alkoxy Unit and Their Application to Organic Synthesis." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263488.

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14

Záviška, Petr. "Návrh otočného stolu CES 200 s hydrostatickým uložením." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230143.

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This diploma deals is occupied with design of the heavy rotary table with hydrostatic bearing of table. In introductory part of deals the design part are described, for exampel. tipes of bearings, drive and etc. In other parts the design of rotary table with hydrostatic bearings is described.

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15

Fang, Yuefa. "Calculation and measurement of the eight oil film stiffness and damping coefficients for a variable impedance hydrodynamic bearing." Thesis, Staffordshire University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359621.

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16

Марцинковский, В. С., В. И. Юрко, Ю. С. Филоненко, В`ячеслав Борисович Тарельник, Вячеслав Борисович Тарельник та Viacheslav Borysovych Tarelnyk. "Проектирование радиальных подшипников скольжения с вкладышами на гидростатическом подвесе". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/21576.

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Разработана конструкция радиального подшипника скольжения с самоустанавливающимися вкладышами на гидростатическом подвесе, позволяющая устранить недостатки традиционных подшипников скольжения. Описаны этапы совершенствования конструкции и технологии изготовления подшипников, приведены сравнительные эксплуатационные характеристики. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/21576<br>Hydrostatically supported tilting pad journal bearing design, eliminating defects of conventional journal bearings, is developed. Stages of the bearing design and

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17

Červenec, Adam. "Parní turbína pro pohon kompresoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401526.

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The purpose of the diploma thesis is the design of condensing steam turbine for driving a compressor with mechanical power of 14,5 MW and operating speed 6800 rotations per minute on the compressor clutch. The main part is the thermodynamic calculation of the blade canal, which is verified with strength calculation to meet the requirements of the standart API 612. The next part is a basic design of gland sealing system, including a piston which is leveling the axial force with reusage of steam back to the blade canal. This thesis includes a calculation of axial and radial forces including the

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18

Miller, Adam Charles. "Assessment of Alternate Viscoelastic Contact Models for a Bearing Interface between an Axial Piston Pump Swash Plate and Housing." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1403274866.

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19

Сов’як, Іван Миколайович, та Ivan Sovjak. "Дослідження і модернізація шпиндельного вузла копіювально-фрезерного верстату для підвищення жорсткісних характеристик". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, 2018. http://elartu.tntu.edu.ua/handle/lib/24147.

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У дипломній роботі розглянуті питання, які пов'язані з напрямками модернізації фрезерних верстатів, аналіз варіантів модернізацій, аналіз конструкції базової моделі верстата, задачі проектування., дослідженням комплексу формотворних рухів на верстаті для їх повного або часткового забезпечення. Реалізовано проектний розрахунок та розробку окремих вузлів верстата. Проведена розробка кінематичної схеми і кінематичний розрахунок модернізованого вузла – шпиндельної бабки, визначення потужності приводу головного руху, вибір електродвигуна і силовий розрахунок, розрахунок на міцність зубчатих коліс м

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Тесленко, О. С. "Осьові гідростатичні підшипники". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/44057.

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Для урівноваження сил, що діють на ротор високообертових відцентрових машин найчастіше використовують підшипники ковзання гідродинамічного або гідростатичного принципу дії. Гідродинамічні та гідростатичні опори мають свої переваги та недоліки, які і визначають галузь їх застосування.

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21

Křížek, Stanislav. "Projekt centralizace výroby mosazných klecí pro valivá ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229080.

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This diploma thesis deals with a project to centralize the production of brass cage bearings in the company ZKL Hanušovice, a.s. The first part is focused on the description of the current production process, which has many disadvatages. From the analysis of these disadvantages we can make suggestions for making the production process more effective. The second part of the thesis focuses on these suggestions for the cetralized production proccess. The best of these suggestions has been elaborated into a technological project including capacity calculation and technical drawings. The final part

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22

Paurá, Edson Nunes Costa. "Estudo de Primeiros Princípios de Peapods de Carbono sob Pressão Hidrostática." Universidade Federal do Maranhão, 2010. http://tedebc.ufma.br:8080/jspui/handle/tede/719.

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Made available in DSpace on 2016-08-18T18:19:27Z (GMT). No. of bitstreams: 1 Edson Nunes Costa Paura.pdf: 4371864 bytes, checksum: eb38ecee742cbbf15a438597d2ab23de (MD5) Previous issue date: 2010-03-10<br>In this work the structural and energetic properties of C60@(17,0) carbon peapods bundle were studied under hydrostatic pressure. To study such properties we use ab initio quantum calculations based on the density functional theory in the approach of the generalized gradient approximation. All simulations were performed using the SIESTA code. The results indicate that the bundles in the s

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23

Chen, Dongju. "Analysis and identification technology of system errors of large vertical ultra-precision machine tool." Compiègne, 2010. http://www.theses.fr/2010COMP1890.

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Dans plusieurs pays, les technologies d'usinage d'ultra-précision apportent une contribution importante au développement des sciences et des hautes technologies, principalement dans les domaines de l'optique, des microsystèmes et des ordinateurs avec des applications dans l'industrie des semi-conducteurs, du stockage de données, de l'aéronautique et de l'espace. L'usinage d'ultra-précision est entré dans le domaine de la nano-échelle et devient une dé nécessaire au développement des hautes technologies tant civiles que militaires. L'objectif de la recherche était de développer des méthodes de

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24

Раус, Сергій Сергійович. "Дослідження механізму затиску верстата для обробки кілець кулькових підшипників". Master's thesis, КПІ ім. Ігоря Сікорського, 2019. https://ela.kpi.ua/handle/123456789/30977.

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Магістерська дисертація на тему: ”Дослідження механізму затиску верстата для обробки кулькових підшипників” Дисертація складається з вступу, 3 розділів, висновків, списку літератури. Текст записки складається з 77 сторінок, яка включає в себе 52 рисунків та 14 таблиць. Розроблений самоцентруючий розтискний патрон для обробки кілець підшипника з базуванням по внутрішній сферичній поверхні на двошпиндельном верстаті з ЧПК. Розроблен захват для зміни заготовки між шпинделями, який підвищує продуктивність обробки при багатосерійному виробництві. Був здійснений аналіз напружень в найбільш

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Coutinho, Samir Silva. "Estudo de Primeiros Princípios de Bundles de Nanotubos de Nitreto de Boro sob Pressão Hidrostática." Universidade Federal do Maranhão, 2007. http://tedebc.ufma.br:8080/jspui/handle/tede/731.

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Made available in DSpace on 2016-08-18T18:19:29Z (GMT). No. of bitstreams: 1 Samir Silva.pdf: 2648726 bytes, checksum: c089ee5506a5e19afed5dafba9cbc09f (MD5) Previous issue date: 2007-08-21<br>In this work were studied the electronic, vibrations and structural properties of boron nitride nanotube bundles (16,0), (12,0) and (8,0), when submitted to the hydrostatic pressure changes. To study such properties, we used the ab initio method employing density functional theory in the approach of the generalized gradient approximation. All the simulations were performed using of the siesta code. T

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Buchta, Vojtěch. "Ocelový skelet průmyslového objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371858.

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The diploma thesis deal with design of a technological building in Ostrava serving for the sorting of slag to enagle its sequential use. Geometry of the structure was customized to technological requests. Static system was considered in two versions – joint connections with vertical bracing and omni-directional frame. For detail processing was chosen the joint one, besause it showed up as more advantageous. Static calculation was performed by Scia Engineer 14 software, then some typical connections and drawings were manually designed.

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Paroulek, Adam. "Ocelový skelet technologického objektu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409841.

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The diploma thesis deals with the design of a steel technological structure in the locality of Štětí. The struture is used for the paper production technology. The geometry of the structure was customized to technological requests. The statistic system was considered in two versions – joint connections and frame – joint connections. The frame – joint connections system was chosen for detail processing. The steel structure was calculated by Scia Engineer 19 software. The connections were calculated by Idea statica software. The thesis is processed according to valid standars of ČSN EN.

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Tailony, Rauf. "Internal Combustion Engine Cold Test Driveline Modeling, Analysis and Development." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1564765172535669.

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29

Kráčmar, Tomáš. "Konstrukce vřeten vícevřetenového soustružnického automatu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241713.

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This master‘s thesis contains a design of multi-spindle automatic lathe spindles for the work of the rods maximum diameter of 7 mm. The work deals with a new concept of the drive spindle, where the spindles are driven by external asynchronous motor through the gears with internal teeth attached to the outside of the spindle drum instead of the current method of driven by central coaxial shaft. The thesis research of multi-spindle lathes including a description of the main nodes, design, strength calculations, bearing durability and a simulation model for simulation acceleration and load drives

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Pavelka, Radomil. "Pohon vřeten pětivřetenového soustružnického automatu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231522.

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The subject of the thesis is design of independent spindle drive for multi-spindle automatic lathe MORI-SAY TMZ 520 CNC manufactured by TAJMAC-ZPS. The thesis will introduce the representatives of manufacturing program of TAJMAC-ZPS multi-spindle automatic lathes division and there will be a brief description of their main constructional parts. The main objective of the thesis is an engineering design of testing device which will be bulit for verification of the correct drive concept. There is also many calculations and detailed description of the engineering design. The testing device is made

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Kabrhelová, Eliška. "Nosná konstrukce rodinného domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265267.

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Master's thesis is focused on the design and assessment of load-bearing structure of the family house. Model reinforced concrete structure is created in RFEM. Elements of reinforced concrete are Assessed in accordance with EN 1992-1-1. Excepting static calculation is part of documentation the technical report and drawings shape and reinforcement.

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Lečbych, Antonín. "Trojlodní objekt pro průmyslovou výrobu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227558.

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The thesis contains the design and assessment of three-aisled steel building for small metal production. Supporting span of construction hall is 9, 18 and 9 m. In the middle wing is situated bridge crane with capacity of 2 tons. The estimated location of the object is Luhačovice. The initial design concept was specified by supervisor (as the idea of the investor/architect), for which was did static and structural solution and assembly details. For selected option was made a calculation of supporting structures and selected assembly details. The hall has a rectangular floor plan of 36x36m and r

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Мартиненко, Геннадій Юрійович. "Динаміка роторів турбомашин в пасивних і активних магнітних підшипниках". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38014.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.02.09 – динаміка та міцність машин (13 – механічна інженерія). – Національний технічний університет "Харківський політехнічний інститут", Міністерство освіти і науки України, Харків, 2018. Дисертаційна робота присвячена вирішенню науково-прикладної проблеми зі створення нового загального способу математичного опису динамічної поведінки роторів в системах з магнітними підшипниками різних типів, який відрізняється узагальненістю підходу і повнотою врахування нелінійного взаємозв'язку процесів, що відбуваються в

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Мартиненко, Геннадій Юрійович. "Динаміка роторів турбомашин в пасивних і активних магнітних підшипниках". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38023.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.02.09 – динаміка та міцність машин (13 – механічна інженерія). – Національний технічний університет "Харківський політехнічний інститут", Міністерство освіти і науки України, Харків, 2018. Дисертаційна робота присвячена вирішенню науково-прикладної проблеми зі створення нового загального способу математичного опису динамічної поведінки роторів в системах з магнітними підшипниками різних типів, який відрізняється узагальненістю підходу і повнотою врахування нелінійного взаємозв'язку процесів, що відбуваються в

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Bašista, Ján. "Zastřešení objektu pro společenské účely." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226074.

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The work treats the static recalculation of an existing roof structure of a construction for social purposes and proposes two variants of the design of a new roof structure. The construction has a rectangular ground plan of 30 m x 47 m and the roof structure is placed on the load bearing circumference concrete walls. Except for the load constituted by the function of the construction and by the climatic area, an extra load of 2 tons suspended at any place of the structure is considered because of the special requirement of working and technological equipment. The variant no. 1 is designed from

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Kondáš, Ondřej. "Polyfunkční dům Brno, Černovice - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265233.

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The aim of this master's thesis is the construction-technological project of the entire building focusing on major construction building - Multifunctional house, which is based on large-diameter piles. The main part of thesis are budget of object and time schedules of construction. Part of the thesis is organization of construction and design of the site eguipment, technological regulation of selected work, quality control and solving transport relations including oversize cargo. It also deals with the design of mechanical assemblies, health and safety, safety of environment and design of inst

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Chen, Chung Chin, and 陳宗慶. "A Hydrostatic Rotary Bearing Design." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/fanqxh.

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Yeh, Chih-Jung, and 葉志榮. "Stress Analyses of Hydrostatic Thrust Bearing." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/01478854585184121344.

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碩士<br>國立成功大學<br>機械工程學系<br>86<br>Hydrostatic bearings are most important in manufacturing of heavy machine. In general, the push powers of turbo compressor, twyer and water marine engine are loaded by hydrostatic thrust bearings. Rolling bearings and hydrostatic bearings are usually used to support the center axial and the rotation flange. Additionally, in machine tool, especial in large planing machine, hydrostatic bearings are also applied for lubrication and support. Although the hydro

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Lin, Sheng Guan, and 林昇冠. "Precision Shaft Position Control of Hydrostatic Bearing." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/56932660012301003826.

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Lin, You Xiang, and 林祐祥. "A Horizontal Hydrostatic Rotary Bearing Design and Analysis." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/13734066137889765603.

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碩士<br>國立清華大學<br>動力機械工程學系<br>104<br>This thesis studies the design process of the hydrostatic bearing, and completes a horizontal hydrostatic rotary bearing design with high performance based on a properly structural design and with self-made capillary restrictors. In theory, analyze the flow resistance of the pad and restrictors to design the pressure ratio between the source and the pocket, which conduces to design the bearing stiffness. Secondly, this study probes the function of the load capacity of the single pad and the opposed pad hydrostatic bearing, and the performance of stiffness. In

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Tsai, ChiPing, and 蔡其平. "Characteristics Analysis of Hydrostatic Bearing with capillary Restrictions." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/57920654539967014972.

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碩士<br>東南科技大學<br>機械工程研究所<br>100<br>This study is primarily focusing on the influences of hydrostatic radial bearing on load capacity and static stiffness with different parameters, including number of recess, restriction, recess length ratio, and displacement ratio in capillary restriction. We constructed the flow continuity equations for each recess using Flow Resistance Network (FRN) method, solved the set of equations for pressure ratios, and then further obtained the load capacities and static stiffness. The FRN method establishes the flow rates and interactions within themselves in a multi

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Chen, Wei-chih, and 陳威志. "Research of the Properties for Hydrostatic Thrust Bearing." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/46433911844880646961.

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碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>100<br>The present thesis examines the influence of experimental parameters of the hydrostatic thrust bearing on properties thereof. Through the mathematical formulas derived from Navier-Stokes equations and Reynolds equation the relationship between various parameters (such as pressure, flow, gap and load) were investigated. Meanwhile, the parameters were set using the hydrostatic thrust bearing test platform with pre-restricted membrane-type restrictor, and data regarding parameters were measured via a sensor linked to the platform The tables for measured data w

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Liu, Chun-Yu, and 劉醇宇. "Manufacture and Validation of Porous Tile Hydrostatic Bearing." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/e4svmn.

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詹勳浩. "Development of a feed drive mechanism with hydrostatic bearing." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/63952937675683578481.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>91<br>The purpose of this study is to develop and assess the accuracy and performance of a feed drive mechanism designed with high helix ball screw and hydrostatic air bearing, and then to investigate the optimum design parameters of such system. The procedures of study include the following: the design parameters of air bearing are calculated based on basic formula, prototype is designed and built, various types of precision instrument are used to test the accuracy and performance of the system. Finally, the testing data are analyzed and the important design con

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Tseng, Chin-Sheng, and 曾進生. "The study of hydrostatic journal bearing lubricated with ferrofluid." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/sss32r.

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碩士<br>中華大學<br>機械工程學系碩士在職專班<br>101<br>This thesis studies the characteristics of hydrostatic bearings lubricating with ferrofluid. The multi-pocket capillary compensated bearings has been studied to simulate lubricant film and to determine the influences of magnetic field, magnetic fluid, couple stress parameters, restrictor and geometry and physical parameters of bearing on the static and dynamic performances and stability of a rotor-bearing system. The modified Reynolds equation is developed by using Stoke couple stress fluid theory as well as Jenkins model. The Reynolds equation is split

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Hu, Sheng-Yen, and 胡聖彥. "Characteristics Analysis of Constant-flow Valve for Hydrostatic Bearing." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/90621275749942677586.

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碩士<br>中原大學<br>機械工程研究所<br>100<br>Constant-flow valves have been presented in industrial applications or academic studies, which compensate pressures of bearing recesses as load fluctuates. The flow rate of constant-flow valves can be constant in spite of the pressure changes in recesses. However, specific condition of design parameters must be satisfied. This paper utilizes analytical method to study the static and dynamic characteristics of constant-flow valves, three types of constant-flow valve are DDE-type, DSI-type, and spool-type. The static analysis gives the specific relationships among

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Jian, Jia-Yu, and 簡嘉昱. "The Stiffness Analysis of Hydrostatic Bearing By Taguchi Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/97257969472685715973.

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碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>100<br>The purpose of the research is to study the stiffness of hydrostatic bearing. Therefore, construct a hydrostatic bearing test platform to explore the affection of the hydrostatic bearing stiffness in different gap, different pressure, and different flow. Through the theoretical discussion to analyze the stiffness of hydrostatic bearing on the machine, use Taguchi method to find the best combination of parameters on stiffness of hydrostatic bearing. By this research, we can obtain the stiffness analytic methodology of hydrostatic bearing to improve machine p

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Chen, Yi-Yun, and 陳翊云. "Design and Test of Hydrostatic Bearing with Floating Ring." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/5w3kh5.

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LI, YUN-RUEI, and 李昀叡. "Development of Spool-type Pressure Feedback Restrictor for Hydrostatic Bearing." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/34319201295649926751.

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碩士<br>國立雲林科技大學<br>機械工程系<br>104<br>Due to the increasing demands of larger dimension, heavy load and higher precision for current and future machine tools, the development of hydrostatic bearing has become an important issue over the past few years. In this study, therefore, a novel single-acting spool-type pressure feedback restrictor for hydrostatic bearing is developed. Nowadays, the most commonly used pressure feedback restrictor for hydrostatic bearing is membrane type of restrictor, in which a thin and flexible metal sheet serves as the key component control to the hydraulic oil flow prec

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Jhang, Sie-Sing, and 張協興. "Study in Flow Control for Constant Film of Hydrostatic Bearing." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/a864h7.

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碩士<br>中原大學<br>機械工程研究所<br>105<br>Hydrostatic bearings are used in tool spindle, working head, linear guides, lead screw, rotary table slideway, worm-gear and worm-rack, where the spindle or worktable is supported by the external pressurized lubricant film. As a hydrostatic bearing which provides greater load capacity, higher stiffness and vibration damping than rolling bearings and air bearings, and has lower friction coefficient, greater accuracy and longer life than the hard guides, its rotation accuracy is better than hydrodynamic bearings and zero torque starting capacity. However, there ar

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