Relevant bibliographies by topics / Valivá tělesa

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  1. Dissertations / Theses

Academic literature on the topic 'Valivá tělesa'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Dissertations / Theses on the topic "Valivá tělesa"

1

Cagaš, Radek. "Konstrukce dokončovacího stroje pro valivé elementy ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231787.

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The thesis deals with the design of the device that is used to improve the quality of the surface of spherical rollers. Spherical rollers are used for the measuring of the conditions in the EHD contact. The high roughness and waviness of the spherical rollers’ surface is a problem. Several machining methods are described in the theoretical part. The overview in theoretical part has been used for choice of the machining methods (lapping and abrasive polishing). The spherical rollers‘ machining system, its construction, electronics and control systems are described in the next section. The last part is focused on testing of assembled device, and on checking its functionality. The desired roughness of the spherical rollers' surface, suitable for successful interferometric measurement, was achieved by combining the selected machining methods. The roughness and waviness achieved was Ra0.01 micron Wa0.022 microns.
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2

Štábl, Martin. "Návrh progresivní technologie výroby tělesa šoupátka." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229861.

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This diploma work is dealing with the progressive production technology proposal of the valve body type S43 components. This is the high-pressure valve for the classical power supply. Here in the work is described the structural design of the valves, the material of the valve body and its machinability. Following an analysis of the existing production technology is the new production technology proposal for this part. All is designed with regards to the business possibilities of the Armaturka Vranová Lhota company. In conclusion of the work is presented the technical economic evaluation of both the existing and the proposed manufacturing technology.
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3

Lekeš, Petr. "Návrh a optimalizace tělesa vřeteníku pro obráběcí stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444267.

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This diploma thesis deals with the design and optimization of a headstock for machine tool. Thesis was focused to comparison of several types of slide-ways and linear guides of headstock, considering their static and dynamic rigidity. An overview in the field of machine tools, their static and dynamic properties, use materials and design of headstocks, considering types of guideways, types of guideways drives and types of drives of spindle was made. Among the other main goals is included design of several types of guideway of headstock for horizontal machine tool, elaboration of computational models and evaluation of results.
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4

Kořínek, Tomáš. "Analýza napjatosti a pevnostní kontrola tělesa ventilu parní turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382568.

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This diploma thesis deals with the determination of lifetime and computational modeling of stress strain states arising in the body of the steam turbine valve. Due to the high temperature of the inlet steam, the creep of the material which fundamentally affects its final lifetime is also considered in the calculation. The lifetime is evaluated by four different procedures using the finite element method via the ANSYS software. The results are compared at the end of this work. One of the chapters is focused on solving the problem of the creep in the ANSYS software environment.
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5

Jarkovský, Marcel. "Řešení technologie součásti "ventil s kondenzační smyčkou"." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231353.

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This Master's thesis focuses on technology of production of the valve body produced by company Armaturka Vranová Lhota, a.s. First part introduces the company and their range of products. Second part of the Dissertation focuses on analysis of the part with details on construction, material and choice of three options of semi-finished product based on minimum expenses. In the third part are introduced current technological processes of assembling, weldment and valve body production. There are proposed two new production options to the current technological production process of body valve using different tools and jigs. New production instructions are calculated to establish times of production. In the conclusion of dissertation is the choice of optimal option considering habitual practice and conditions of company. For this chosen option is calculated technical-economic evaluation.
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6

Matoulková, Jana. "Vytápění bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265596.

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The point of the thesis was to design a heating system for new residential building, situated in Nový Lískovec, Brno. As a source of heat has been designed condensing boiler fueled by gas that meets the need for heating of heating system and hot water. All of the equipment will be located in a utility room on the ground floor. In the apartment have been designed decorative panel radiators.
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7

Řehůřek, Lukáš. "Vliv pružnosti rozvodového mechanismu na pohyb ventilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254396.

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The aim of this thesis is a comparing single valve train motion (SVT) and complete valve train motion with a flexible camshaft focused on dynamic characteristics. In this thesis is also performed kinematics analysis in the VALKIN software. Dynamic analysis is solved in the MBS software Virtual Engine. Influences to the valve train motion are described in the conclusion
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8

Štěpán, Tomáš. "Zařízení na zkoušení termoregulačních vlastností termostatických hlavic." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228088.

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This master's thesis is focused on the design of a device for testing the thermo-regulating properties of thermostatic heads. The engineering design, design of testing device has been composed according to the standard EN 215: Thermostatic radiator valves – Requirements and test methods. Based on these designs, sensors and regulation elements, which are suitable for testing, have been designed. Last part of the thesis deals with operating the device and measurement procedure.
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9

Náglová, Michaela. "Tlakové ztráty armatur otopných soustav." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265630.

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The theoretical part of the thesis deals with the hydraulics of heating systems. The aim of the project is a design of the heating and hot water preparation system for an apartment building. The building has 6 above-ground floors and 2 underground floors. Two different options of heating systems were designed, comparison and results are presented in the thesis. In the first case the heat source during the winter season and for water heating, where chosen two gas condensing boilers, situated in separated room on the second underground floor. In the second case, each apartment has its own gas condensing boiler. The experimental part of the project deals with measurements of pressure losses in water armatures used in heating systems. The aim of this part is the determination of coefficients of added resistance for uncontrolled elements, which are normally presented as tabular value. In thesis are presented results for a ball valve, backflow preventer, filter, for slide valve and thermostatic valve. Measurements for thermostatic valve where done with different settings and results are compared with parameters listed in the datasheet.
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10

Dolníček, Petr. "Stanovení dynamických vlastností zpětného ventilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318689.

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One of the objectives of the master´s thesis is to summarize types of most used check valves and their constructions. These check valves have specific static and dynamic properties. One of dynamic properties is vibration of closing member of lift check valve. Due to these vibrations, the added effects of fluid may result. This thesis deals with explanation and computation of these added effects.
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