Relevant bibliographies by topics / Mazání ložisek

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Mazání ložisek'

Author: Grafiati
Published: 28 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Mazání ložisek"

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Maršálek, Ondřej, Pavel Novotný, Lubomír Drápal, and Václav Píštěk. "Improvements in Computational Modelling of Slide Bearings." Journal of Middle European Construction and Design of Cars 10, no. 3 (December 1, 2012): 15–21. http://dx.doi.org/10.2478/v10138-012-0015-7.

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Shrnutí Zaměrem tohoto članku je představit inovace v oblasti vypočtoveho modelovani kluznych ložisek pohonnych jednotek. Tyto inovace spočivaji, mimo jine, v rozšiřeni modelu o podminky smišeneho mazani. Vstupni data pro detailni vypočty jednotlivych kluznych ložisek jsou poskytovana vypočtovym modelem pohonne jednotky vyšši urovně, tzv. virtualnim motorem. Vysledky těchto vypočtů slouži jako teměř nezbytne informace pro spravny navrh parametrů různych typů kluznych ložisek. Prezentovane metody jsou založeny na novych programovych nastrojich, vyvinutych autory během vyzkumu, a take na komerčně dostupnych aplikacich typu ANSYS nebo ADAMS. Vypočtove modely pohonnych jednotek vyšši urovně zahrnuji pružna tělesa na zakladě redukovanych MKP modelů. Nově vyvinute vysoce specializovane programove nastroje jsou sestaveny v programovacich jazycich Fortran a Matlab.
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Dissertations / Theses on the topic "Mazání ložisek"

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Sikora, Vojtěch. "Optimalizace mazacího systému pro mazání ložisek válcovacích stolic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443758.

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The thesis focuses on the optimization of the central lubrication system for the lubrication of rolling bearings of rolling mills in the operation continuous wire rod mill. The work is divided into theoretical and practical part. The first part of the theoretical work is focuses on the search of rolling and tribodiagnostics. The next part focuses on the description of modern central lubrication systems, explanation of their principle and practical use. The practical part explains the function of the old lubrication system for rolling mill bearings with an analysis of its problems. Next is described the technical design of a new central lubrication system, its application into operation and its actual commissioning are described. The last part of the thesis is the conclusion and evaluation of the benefits of the new central lubrication system compared to the old one.
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Sikora, Tomáš. "Mazání a návrh dynamicky zatížených kluzných ložisek kompresorů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229198.

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Tato diplomová práce pojednává o návrhu ložisek kompresoru. Za tímto účelem byl zakoupen speciální program JDynamic. Tento software poskytuje cenný přínos při navrhování kluzných ložisek a s tím spojených problémů. Programové výsledky reálného kompresoru jsou obsaženy v parametrické studii. Byl proveden test reálného kompresru. Modifikace kluzných ložisek byly zaměřeny na snížení ztrát.
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Škoviera, Jozef. "Návrh systému pro testování valivých ložisek s proměnnými parametry mazání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318396.

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The presented diploma thesis deals with the design of a test system for rolling bearings, which allows the change of the lubrication parameters (e.g. changing of the relubrica-tion interval). In the document, the reader first learns about the meaning of lubrication of rolling bearings, the possibilities of lubricant supply to the bearing (specifically for the supply of grease) and the possibilities of dosing control. Subsequently in the document is described the present state of experimental stations for testing rolling bearings, which is available at the Institute of Machine and Industrial Design. The end of the part about current state of knowledge is also mentioned the possibility of speeding up fatigue tests. In the next part, the author describes his own solution. The result is the design of an experimental station (for option to relubricate with grease), the creation of a lubrication control platform and the creation of a basic program. Part of the work is also verification experiments and drawing documentation.
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Vincenc, Jan. "Laboratorní simulátor pro studium radiálních kluzných ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319274.

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The master’s thesis deals with a design of a radial journal bearing simulator, which is ready to implement a transparent sapphire journal bearing to an optical observation of the oil film. The first part of this thesis contains a short review of a few currently used journal bearing test rigs. The next part of the work deals with a discussion of concept variants and a definition of important parameters. The last part contains a detailed description of the designed radial journal bearing simulator. Limitations of the designed simulator and recommendations for future improvements are also discussed. The result of the presented work is the designed journal bearing simulator which will allow observing of the oil film. The work also consists a complete design documentation.
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Lábus, Jiří. "Chování kluzných ložisek řadového pětiválcového motoru při různých provozních podmínkách." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227894.

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This diploma thesis is devoted to problems of crankshaft plain bearings at five-cylinder in-line engine. Document body describes behaviour of plain bearings under various working conditions. To needs of the hydrodynamic bearings simulations is created the cranktrain virtual model. Next part of hereof document deals with problems of bearing shell design. Is created survey of the bearing materials and shortly described technological processing of shell bearing. To understand complicated problems hydrodynamic lubrication is derived Reynolds differential equation and foreshadowed succession calculation dynamically loaded bearings. In final parts of this thesis are presented most interesting results obtained from computational analysis.
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Kučera, Ondřej. "Realizace edukačních úloh na experimentálních stanicích pro kluzná ložiska mazaná olejem a vzduchem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229016.

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This master thesis is focused to make education exercise on simulation equipment, tilting pad apparatus and air bearing apparatus. Exercise are, for better understanding problems, completed about exercise measurement viscosity. Were to be proposed three separate exercise for exercising, which were to be well – tried. Measured data from stations for sliding bearing will students confront with computed data. To every exercise are created instructions for exercising, educational presentation and poster to arrangement.
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Valenta, Jakub. "Vývoj metody pro hodnocení režimu mazání ve valivém ložisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417738.

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The aim of this master’s thesis is to develop measuring methods for evaluation of the lubrication regime in a rolling bearing. The first part of thesis maps several measuring methods according to which the lubrication mode can be evaluated. Based on the assessment of this part, electrical monitoring methods were selected. For application of these methods was constructed testing device with rolling bearing. Specific measuring chains based on selected methods were designed and verified by using initial tests on a ball-on-disk tribometer. According to the results of these initial measurements was selected and applied suitable measuring chain to the selected test device. In the end, there was a successful measuring the lubrication parameter on the rolling bearing. Additionally, other tests dealing with the influence of temperature and type of oil on the measurement itself were performed.
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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 $0.5^0$. Lubricant properties were also provided for the initial problem: oil density of $ 840 kg/m^3$, dynamic viscosity $(\eta)$ of 0.01 Pa.s With this data, the numerical solution of the Reynolds equation was computed using MATLAB. To obtain more information, the minimum lubricating gap thickness was also computed using MATLAB. With this information, the shape of the analytical profile, and its characteristics were found. The analytical profile was then used a guide to create a general profile. The general profile thus obtained is then optimized using GA. The characteristics of the generated profile is then computed and compared to that of the analytical profile.
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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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Pisklák, Jan. "Vliv přimknutí na tření ve valivém ložisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230584.

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This master’s thesis describes the influence of conformity on friction in rolling bearings. The coefficient of friction is measured on an experimental machine - Mini Traction Machine 2 – using ball-on-disc method. The results are plotted in graphs which showing the dependence of the coefficient of friction at spin-to-roll ratio for specific conformity, normal load and speed in the contact area. The influence of load, speed or different lubricant viscosity is verified for a given value of conformity. Experimentally obtained data are compared with the mathematical model developed in MatLab, within this thesis.
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Dissertations / Theses
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