Relevant bibliographies by topics / Trvanlivost ložisek

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  1. Dissertations / Theses

Academic literature on the topic 'Trvanlivost ložisek'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Dissertations / Theses on the topic "Trvanlivost ložisek"

1

Frejlich, Tomáš. "Konstrukce experimentálního zařízení pro trvanlivostní zkoušky ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231781.

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Diploma thesis deals with the structural design and subsequent implementation of a functional prototype of an experimental device for durability testing of bearings. The first part of the thesis deals with an overview of the current state of knowledge and summarizes information about testing the durability of bearings. In the next part follows the design, selection and analysis of the optimal design variants. The last part deals with the verification of the functionality of the prototype bearing life testing and evaluation of data measured during testing.
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2

Šváb, Štěpán. "Diagnostika stavu malých kuličkových ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400673.

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The aim of this thesis was to build equipment for testing bearing condition analysis during its life. The theory of bearing parameter and diagnostics methodology for their analysis are discussed. Hardware used for device design and data collection. Finally, the course of measurement and software evaluating the end of the test are discussed.
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3

Kotiza, Tomáš. "Jednoválcový čtyřdobý motor motocyklu třídy enduro." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254440.

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Diploma thesis is aimed on construction design of single cylinder four stroke engine. Conception of engine with cylinder capacity 450 cm3 meets the rules of Enduro E2 class and is adapt for application for motorcycle with extremely long swing arm according to the patent owned by Ing. Frantisek Krnavek. In the beginning of this thesis is analysis of engines this category and specific engine layouts in the motorcycles. After is design and simulation of engine parameters from which are created and described 3D models of engine parts. Conclusion is about durability calculation of main bearings.
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4

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 and spindles from the cutting process.
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5

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 for internal needs of TAJMAC-ZPS.
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6

Tetour, Stanislav. "Vliv přesahu na životnost valivého ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378487.

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Master thesis is focused on the influence of interference fit on rolling bearing life. The first part of thesis deals with the theoretical knowledge, that is necessary for the solution. The influence of interference fit was investigated of inner ring on shaft and outer ring in housing bore for recommended tolerance classes. Interference fit was solved on cylindrical roller bearing and tapered roller bearing. Analytical and numerical approach was used for the solution. A static analysis of bearing was made using program ANSYS Workbench in numerical section. The output of analysis was maximum shear stress under the contact surface, which result is contact fatigue of bearing. Bearing life was determined by life factor, which indicates bearing life with interference fit compared to bearing without interference fit.
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7

Vaculka, Miroslav. "Návrh metodiky výpočtu životnosti valivého ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241927.

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This master’s thesis deals with a fatigue analysis of a roller bearing. The fatigue analysis consists of determining service-life of a roller bearing using a stress-strain analysis with finite element method and subsequent numeric calculation using software fe-safe with application of Brown-Miller multiaxial fatigue criterion. Service-life of a roller bearing is determined by number of cycles to failure in the form of pitting formation which is consequence of contact fatigue. According to calculations was found an inappropriateness of Brown-Miller criterion for high-cycle contact fatigue. Test of other available criteria was performed. Principal-Strain criterion provided the best match with ISO 281 standard.
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8

Čada, Martin. "Fyzikální a mechanické vlastnosti karbonských arkóz na ložisku přírodního kamene Březín." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-332184.

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The aim of the thesis is to determine the levels of the physical and mechanical properties of chosen sedimentary (siliciclastic) rocks and also to describe their microstructural nature. With respect to the intended use of the studied material (building stone raw material) the laboratory testing methods are presented. The samples were taken from the drill cores and also from the surface blocks in locality "Zlatý lom" Březín situated in western Bohemia. The microstructural phenomena in the samples were studied using optical microscopy and digital image analyses. According to Folk's classification (1980) the name of the rock was lithic arkose. The strength testing methods were represented by unconfined compressive strength and the Brazilian test. The rest of the mechanical parameters were determined in form of Young's modulus, shear modulus and Poisson's ratio. Special emphasis was given to the hydric expansion (after full immersion) test. The other physical methods were used in order to describe the pore space and real density of samples. For this purposes the absorption test, mercury intrusion porosimetry and helium pycnometry were performed. Besides the porosity value, the pore-size distribution histograms were obtained. In order to calculate the theoretical density of the rock MINLITH and MODES...
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