Thematische Bibliographien / Válcovny / Dissertationen
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Dissertationen zum Thema „Válcovny“

Autor: Grafiati
Veröffentlicht am 28. Juni 2021
Zuletzt aktualisiert am 17. Februar 2022

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1

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 desc
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2

Hacek, Samuel. "Výpočtová simulace válcování v kalibru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-418200.

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Táto diplomová práca sa zaoberá možnosťami výpočtového modelovania valcovania v kalibroch pomocou metódy konečných prvkov. Na začiatku je formulovaná motivácia pre písanie práce a problémová situácia, nasledovaná zostavením systému podstatných veličín. Ďaľšia kapitola popisuje rôzne spôsoby valcovania ako aj samotný valcovací proces. Dôraz je kladený na popis tradičného návrhu kalibrov. Nasledujúca kapitola sa zaoberá teóriou plasticity, plastickým chovaním materiálu a jeho modelovaním v konečnoprvkovom prostredí Abaqus, ktoré je použité vo výpočtovej časti práce. Predstavené sú viaceré modely
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3

Zapletalová, Martina. "Výroba bezešvých kruhů technologií radiálně-axiálního válcování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318826.

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The thesis is focused on the production of a seamless ring manufactured from low-alloyed steel 15 142, which fills the function as a large-dimensional bearing. On the basis of suitable production technologies analysis, the radial axial rolling method was chosen and a specific manufacturing process was proposed. During the manufacturing time, the creation of the forging defects in the transfers forms were occurred, which was totally undesirable. By changing the parameters of the machine, in particular the rolling curve and the temperature, the process was optimized and the production performed
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4

Smolík, Adam. "Kmitání stlačitelné tekutiny ve válcové oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241897.

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The thesis includes two main parts. The first part comprises the theoretical analysis, i.e. literary research. It has been focused on questions regarding compressive pulsation and possible damping elements. The second part focuses on the formation of mathematical model of transition of matrix gas accumulator, the hydraulic set formation by the transition matrix method, the deduction of innate and constrained values and the compressible liquid mode shapes in cylindrical space.
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Horváth, Ľudovít. "Model profilu povrchu obrobku obrobeného válcovou obvodovou frézou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231139.

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In the teoretical part of the master´s thesis, the master´s thesis deals with milling and surface profile describing. In the practical part, the master´s thesis deal with model of surface profile after milling operation with plain milling cetter. For evalution were used data obtained from the computer model of the surface profil and data obtained from measuring the actual surface profil, which was created by machining the material mills with a diameter of 45 mm.
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Bulva, Miroslav. "Porovnání kvality práce lisů na válcové balíky." Master's thesis, Česká zemědělská univerzita v Praze, 2016. http://www.nusl.cz/ntk/nusl-259338.

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The thesis is focused on comparing the round baler with variable bale chamber. The press Vicon RV 1601 OC14 was compared with press Welger RP 435 Master. The evaluation was conducted from three perspectives. The first was the construction of the machine. The second was economic and the last one was the quality of work. Furthermore comparing was done per the performance, the cost of molding, packaging and simple analysis of investment and operating costs. The quality of the design was better with the press Welger. This press was measured to better results in bale density per hundred percent dry
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Jantač, Marek. "Návrh zefektivnění výroby válcové součásti hydraulického systému." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241020.

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The aim of the paper was to proposed new manufacturing technology. In the beginning, the diploma thesis deals with the technological aspects of manufacturing hydraulic valve. Subsequently is described the usage of manufacturing technology. The existing production process is analysed in detail. Better efficiency was achieved by using hard turning instead grinding technology. Economic evaluation is described in the end of thesis, where is efficiency of hard turning technology supported by calculations.
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8

Zalibera, Tomáš. "Výpočetní analýza provozních deformací válcové jednotky vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417726.

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Submitted diploma thesis deals about operational deformations in the cylinder unit of turbocharged diesel engine used in commercial vehicles. Introductory part analyses combustion engines computational modelling based on finite element method. The next step is the creation of computational models for thermal-structural analyses of the piston and engine block. In order to determine material characteristics of the head gasket, experiment is performed on the OEM gasket to determine its real behaviour under compressive load. The results shows strong nonlinear behaviour which justifies the decision
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9

Oborná, Eliška. "Tlakové a rychlostní pulsace kapaliny v tenké válcové oblasti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378384.

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The subject of this diploma thesis is a dynamic analysis of phenomena occurring in the thin cylindrical region, ie in a gab, which flows liquid by the given parameters. Through the simplifications introduced, it comes to the problem of structural and forced vibration for both the horizontal pulsation in a tube and the area of a compensating piston. The described method uses the separation of variables for pressure function. The speed function is derived from the already known pressure field distribution using the Navier-Stokes equation.
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10

Luks, Tomáš. "Výpočtová analýza namáhání povrchových vrstev pracovního válce při válcování za tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228370.

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This thesis is dealing with an analysis of thermal and mechanical loads on a work-roll. First, hot rolling focused on work-roll is described in general. A theoretical analysis of roll loads and the mechanisms affecting roll durability are presented here. The thesis is concentrated on creation of a model in FEM program ANSYS. The final model is loaded with different rolling schemes and monitored stresses in a surface layer. The parameters obtained from the measurements performed in a rolling mill are applied as boundary conditions within the model.
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11

Koudela, Michal. "Návrh na zefektivnění procesu obrábění válcové součásti pro ropné vrty." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231121.

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This diploma thesis is concerned with a proposal for increasing the efficiency of machining when manufacturing an inner sleeve at the company Sanborn a.s. In the diploma thesis, the technology used for machining itself is first briefly described, followed by a description of the original production technology including a description of machine and hand tools used and cutting conditions. The next part of the paper describes the proposal for increasing the efficiency of machining operations. The proposal includes a description of the suggested solution that will lead to increased efficiency, a m
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12

Illík, Jakub. "Analýza proudění kapaliny v otevřené válcové nádobě s hladinovým vírem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416451.

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This master's thesis analyses fluid flow in an open cylindrical tank with vortex using numerical simulation. The theoretical part introduces a set of equations governing fluid flow and relations used to describe vortex motion. A general overview of terms used in computational fluid dynamics is presented. The experimental section consists of three parts. The vortex modelling is performed using ANSYS Fluent software. Data are consequently analysed within ANSYS CFD-Post software tool. Special focus is put on the vortex shape that is fitted with a curve corresponding to a probability density funct
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13

Zemčík, Tomáš. "Simulace průběhu řezné síly při obvodovém frézování válcovou frézou s přímými zuby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229250.

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To make a simulation of cutting force during milling process with cilindrical cutter is the aim of this diploma thesis. Preliminary part is devoted to technology of milling, milling cutters and cutting materials. The next section is aimed at kinematics of the cutting process, a theoretical analysis of power proportion, the possibility of measurement of force actions. General information about the programming software, a theoretical simulation model, graphical environment of created application, are the other points of this diploma thesis. The work also includes evaluation of the experimentally
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14

Luks, Tomáš. "Okrajové podmínky ve válcovací mezeře při válcování za tepla a za studena." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-255769.

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Boundary conditions in the roll gap play an important role in modelling of rolling processes. In the roll gap we can observe the following: changes of rolling pressure, changes of relative velocity, influences of oxides and lubrication, etc. When taking into account all conditions mentioned above the determination of the boundary conditions is not trivial and extensive measurements are necessary. Therefore, this thesis is dealing with design of temperature and force sensors specified for the determination of friction coefficient and heat transfer coefficient in contact. The temperature sensor
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15

Fichtl, Lukáš. "Sledování vlivu způsobu a frekvence válcování jamkoviště na jeho rychlost na vybraných hřištích." Master's thesis, Česká zemědělská univerzita v Praze, 2016. http://www.nusl.cz/ntk/nusl-257312.

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This diploma thesis is focused on monitoring of golf green rolling methods and its frequency impact on green speed on selected courses. In the first part of this thesis issues relating to golf, global history of golf and history of golf in Czech Republic are analyzed, also are described golf green construction methods here. There is also described golf green rolling and the effects of rolling. The next part presents methodology of experiments and presents the results of these experiments. The analyzed data showed that the green speed did not decrease too much during the day. The results of ano
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16

Nejedlý, Pavel. "Návrh a pevnostní kontrola senzoru pro měření teplot a sil při válcování za tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228581.

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In the process of hot rolling is roll surface thermo-mechanically stressed. To define lifetime of roll or to increase it by change of thermal mode, temperatures and forces acting on this roll need to be known. For this purpose should be used sensors, that are placed near by surface of roll. Aim of the first part of diploma thesis is to debug 2D computing model (MKP) to achieve the match of temperature graphs with experimentally measured values, which was recorded by temperature sensors in real process of rolling. In the second part the same temperature boundary conditions are applied on 3D mod
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17

Sigmund, Lukáš. "Výroba válcovaného profilu a její ověření pomocí numerické simulace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382105.

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The thesis deals with technology of hot-rolled profiles, describing total summary of principles and conditions this process is based on. There is a draft of a calibration of profile, the application of which is subsequently verified through a numerical simulation. Futher in the thesis also was verified the mechanical properties of applied construction steel S355J2 through the up-setting test and compared the results with the used material model in the simulation software Simufact Forming. Then, the test rolling of the calibrated profile was carried out. As a next step, the dimensions of the ro
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18

Frýdl, Pavel. "Výroba táhlových háků." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-240950.

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Requirements for the creation of a new technological process of manufacturing of towing hooks were cost savings by optimizing the initial blank and by creating semi automatic workplace. Selecting longitudinal rolling technology for manufacturing preform piece occurs to shorten production times and substantial material savings. By rolling of blank are secured always the exact dimensions of the preform piece and through a chain conveyors is facilitated handling with material for workers and reduced production time of forging line. By introduction of the proposed manufacturing method of towing ho
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19

Meduna, Martin. "Modernizace brzdového stanoviště pro osobní automobily." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228404.

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The basic aim of this thesis is to design optimisation of the brake bench in question. For this kind of optimisation, it was necessary to ascertain which failings the current brake bench exhibited. After ascertaining such failings, design of modification to this brake bench must be performed. In terms of this thesis, it was ascertained that the brake bench has insufficient brake power. Based on this finding, two alternatives for modifications have been selected. The first is replacement of the dynamometer and the second is insertion of a gear box into the brake bench. Rigidity analysis was per
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Lamborová, Leona. "Vliv odstupňované deformace ingotu 8K7,2, vyrobeného z mimopecně zpracované oceli 8Cr3MoV, na jeho homogenitu struktury a mechanické vlastnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442807.

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This diploma thesis deals with the influence of graded deformation of 8Cr3MoV steel rolling mills on the structure and mechanical properties. The theoretical part of this thesis describes general requirements for rolling mills, commonly used material, and the making of hot rolling mill rolls with emphasis on 8Cr3MoV steel. The second part is a report on experimental material and used methods. Then the results are presented. The influence of distance from the longitudinal axis of ingot and graded deformation on the forged shaft on the structure and mechanical properties are discussed at the end
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Skrýval, Tomáš. "Návrh technologie a uspořádání výroby držáku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227984.

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The project conceived within engineer‘s studies of branch 2303T002 is showing holder produce technology using by the company UniTools Press CZ Valašské Meziříčí. This holder is a part of car seat-adjusting system dedicated for Peugeot 308. According to the literary research, next part of this project is submitting two diferent solutions of produce technology and then it chooses the best one. The best one is chosen with the help of weight values table. The holder is produced in associated tool on press Arisa 400 with nominal force 4000 kN. The holder is manufactured from the roll of sheet steel
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22

Zahradník, Radek. "Tepelně-mechanická degradace povrchů za vysokých teplot." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-234221.

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The Ph.D. thesis is focused on a surface degradation mechanisms under combined heat and mechanical load. The objects of examination are work rolls from hot rolling mill which suffer such a load. In first chapter, the hot rolling process, the design, the manufacturing process and present materials of work rolls are described. The state-of-the-art study of work roll surface degradation mechanisms – wear, oxidation, thermal and contact fatigue are described in the second chapter. The characterization, the formation, the mechanisms of progression and the effects of each surface degradation mechani
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23

Pernica, Jiří. "Stanovení silových účinků a pevnostní výpočet skříně válcového drtiče zrna S 1200." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228057.

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This thesis is focused on determination of the power effects, strength calculation and following optimalization of the box for grain roller mill S 1200 – the prototype of the mill to be produced by the copany ROmiLL, s. r. o. Besides issues mentioned above there ar also stated roller mills worldwide trends as well as results and evaluation of the calculations together witu optimalization of roller mill box.
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Konečný, Martin. "Pevnostní výpočet a optimalizace skříně válcového drtiče zrna S 900." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228058.

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This thesis deal with stress control of frame of crushing mill of grain with the aim of defining and consequent optimalization of undersized and overlarge parts of the construction. This frame is screwed assembly. Control is static analysis of frame. This analysis use Finite Element Method.
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Pistulka, Libor. "Studie operativního řízení výroby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228169.

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The main objective of this dissertation is an operational planning optimization with greater concentration on customers and their requirements, which are supposed to be fulfilled in time, costs and quality. The aim is an operative management analysis of production process. In terms of this analysis, deficiencies of the present condition will emerge, which should be eliminated by the solution. The analysis will be based on production system, economy of production process and product. At the deficiencies, which result from the analysis, some variants how to solve the problem will be suggested an
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26

Pelechová, Denisa. "Nosná konstrukce autosalonu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225689.

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The master’s thesis treat of design and appreciation load-bearing steel structure of Motor Show. The object is situated on the lokality Brno. Structure is composed of rolling sections and tubes. Overall height of the structure is 17,395 meters and overall lenght is 32,60 meters. Cross link iscomposed of arched girders panel that are supported on fixed pillars. Theoutside links are composed of panel columns. Load is composed of self weight, additonal imposed load, payload and climate load caused by wind and snow that is reached for given locality.Static rewiew comes out from previous load and i
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27

Stračánek, Rostislav. "Zápustkové kování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382117.

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This diploma thesis is based on proposal of manufacturing technology forging of connection rod by die forging. The connection rod is made of 12 050 steel and it is part of crank mechanism in combustion engine. Production series was specified to 120 000 pcs. for year. Into technology procedure was implemented method of cross wedge rolling before die forging. The material for transverse cross wedge rolling was chosen 19 554 steel. Process of die forging was selected three operation in vertical forging press LZK 4000 with pressure force 40 MN made by company Šmeral Brno a.s. For die material was
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Blaha, Jakub. "Výpočtová analýza zbytkových napětí u autofretovaných vysokotlakých zásobníků paliva." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231712.

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The master‘s thesis is aimed on numerical simulation of autofrettage of high pressure fuel vessel – rail in Common Rail system. First there is described Chaboche model, which is later used for simulation of autofrettage. There are described different approaches which can be used to obtain sufficient material model. Then there is observed influence of these different approaches on stress state of rail within the process of autofrettage. Suitability of Chaboche model for autofrettage and re-autofrettage simulations is assessed by comparing with more complex Jiang model. In the end there is a stu
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Diviš, Adam. "Výroba závěru zbraně." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416624.

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The thesis deals with the design of technology for production of weapon conclusion by die forging. The weapon conclusion will be made of C45 steel in series of 500 000 pieces per year. Before forging, the base semi-finished product will be treated using cross-wedge rolling technology. Thanks to the chosen production process, the forging will be made as four pieces. A simulation of the forging process was made for the created design. Results of a simulation showed that metal did not fill entire hollow. Based on these results was made changes in design and the simulation was performed again. Acc
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Hlavnička, Jiří. "Struktura a vlastnosti hořčíkových slitin Mg-Ca-Zn." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231148.

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This master’s thesis deals with design and preparation of a new biodegradable magnesium alloy based on Mg-Ca-Zn. Based on information from literature, the Mg-3Zn-2Ca alloy was designed. The base material was produced by gravity casting and the evaluation in the as-cast and heat treated state was performed. For preparation of the experimental material, following methods were designed: squeeze casting, hot rolling and the ECAP. During preparation by hot rolling, no optimal conditions were found and significant cracks occurred in both as-cast and heat treated material. In the case of experimental
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31

Smrčka, Václav. "Autosalon." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372131.

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The aim of the thesis is to design and appreciation steel load-bearing structure of motor show. The object is situated in Brno. The Structure consist of tubes and rolling sections. The breadth of construction is 36,5m, lenght 42m and height in the heihest point is 13,2m. The structrure is consists of three parts. Show room, offices and workshop. The height of show room is 20m, offices 8,5m and workshop 8m. The show room consist of arched truss girder. The distance of each cross links is 6 m. Structural design were perfomered by Scia Engineer 2017 and hand computation.
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Kopecký, Petr. "Automatizace měření EM pole měřičem Narda NBM-550." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219160.

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The diploma thesis deals with the measurement of electromagnetic fields by the meter NARDA NBM 550. The aim of the paper is to introduce the possibilities of measurement of the electromagnetic field by this device, to study the feasibility of communication with computer, to create control program and to check its functionality. A description of the electromagnetic field properties is followed by the identification of the device main functions. Additionally, the operating program is described together with the draft of measuring workplace with its realization. The results of probationary measur
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Macháček, Ivan. "Měření rozložení pole v blízké zóně." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218631.

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The aim of this work was to prepare measuring workplace, perform the verication measurement, including the measurement phase, on the cylindrical surface. Measured data were compared with theoretical assumptions and were calculated directional patterns. Probes for measurement in the near sield were designed and realized.
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Stejskal, Miroslav. "Zvýšení výkonových parametrů zážehového jednoválcového dvoudobého motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230130.

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This thesis deals with two-stroke engine design modifications to enhance its performance parameters. The introduction summarizes the various solutions of two-stroke engines. The next part deals with design modifications of the engine power, their implementation and subsequent modification. The work includes strain and stress analysis of the piston, which includes a complete indication of pressures in two-stroke engine. The achieved results of FEM analysis were used to design better piston geometry.
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Bažantová, Lenka. "Rekonstrukce zásobníku na slínek." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371882.

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The thesis is focused on the design of the reconstruction of the reinforced concrete pre-stressed construction of the clinker reservoir. The supporting system of the structure consists of a reinforced concrete wall on which a prestressing reinforcement is applied in the sprayed concrete layer. Preliminary research revealed disturbances that could disrupt static objects. The aim of this work is to propose a solution for the reinforcement of the supporting structure. The thesis contains two variants of the reconstruction solution. A static report is prepared for the selected option, including th
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Horký, Pavel. "Návrh řetězového vlečníku s vytvářením dávky tyčí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382120.

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The diploma thesis deals with the design of mechanism for manipulation with bars and creating a batch of square steel bars. In intoduction of this thesis is describtion of principle of curent mechanisms. In following chapters are described the most important parts of new mechanism and their design. In final sections are risk analysis and financial evaluation.
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Votavová, Helena. "Vývoj nových přístupů v odstraňování okují při kontinuální výrobě oceli s využitím vysokotlakého vodního paprsku." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401607.

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The thesis summarizes general and up-to-date knowledge of descaling during the continuous production of the hot-rolled steel and proposes further streamlining of this process in industrial production. The first chapter of the thesis deals with the origin, structure and physical properties of the scales. The second chapter describes the principles of descaling by using a high pressure flat water jet. The third chapter introduces the principles of the experimental methods and describes the used laboratory equipment. The fourth chapter summarizes the description of the particular experiments and
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Žwaková, Vendula. "Administrativní budova JmP." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226073.

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The subject of this Master’s thesis was recalculation and design two variants of existing supporting steel structure storey administrative building which is located in the complex of Jihomoravská plynárenská a.s. in the city center of Brno. Dimensions and disposition based on the specifications of the Master‘s thesis. The total height of the structure is 29.46 m and circular platform has a diameter of 16.088 m. The supporting structure of an existing building consists of circumferential lattice structure. The main supporting elements of both variants are columns. Option A has 8 columns. Option
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Kolomazník, Milan. "Predikce koroze trubek pece s využitím provozních dat." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231497.

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The thesis deals with the modeling and prediction of corrosion of radiation tube snake in the heating furnace. Specifically it is focused on vertical cylindrical furnace which is included in the catalytic hydrocracking unit and serves for heating aggressive circulation gas which is the cause of high temperature corrosion. An important basis for the creation of computational models are available records about the operation of the furnace and about the corrosion and degradation mechanisms during the lifetime of the tube system in furnace. Such information enables the creation of a computational
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Navrátil, Ondřej. "Objekt pro administrativmí a logistické účely." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225455.

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Design of a steel supporting structure for one-storeyed hall based on ground plan of 60 x 80 m, clear height 10 m and total height 13,3 m. In the front part there is along the whole widht designed two-storeyed skeleton structure penetrating into the hall. From the second floor rods supported frontal part which exceeds ground plan by 2 m and on the right side is closed by pre-set cylindric structure with radius 8,6 m which covers the right frontal corner of building. The cylindric structure is around its perimeter distanced max 3,6 m from hall grand plan and is supported by posts. Both spaces h
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Beran, Vlastimil. "Blízké pole dipólových antén." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218321.

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The thesis describes the radiation of dipole antennas in near field area. More methods for evaluation of spatial dipole field arrangement are compared. The work target for practical use is to create software for simulation of near field values placed in planar or cylindrical observation plane. The computer programme is applicable to single dipole or dipole array. The limits for human body exposition of non-ionizing radiation are here implemented for compliance purpose in hygienic evaluations. The simulated results of field distribution are possible to display as graphs or save to data file. Th
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Škrla, Milan. "Výkonové tlumivky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219235.

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Thesis dissertate power reactors and analyses techniques of an air-core power coils and inductors with ferromagnetic circuit and an air gap. Construction of the inductors verified the accuracy of the calculated values against the measured parameters. According to the outcome of this analysis, corrections of the design process are derived. Thesis design optimization to minimize size, weight, efficiency and in comparsion of these two factoctors.
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Žák, Stanislav. "Pole napětí a deformace v okolí trhlin s komplikovanou geometrií čela zatížených ve smykových zátěžných módech." Doctoral thesis, Vysoké učení technické v Brně. CEITEC VUT, 2018. http://www.nusl.cz/ntk/nusl-390149.

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Tato závěrečná práce je shrnutím výzkumu smykově zatěžovaných trhlin, který proběhl v průběhu čtyř let doktorského studia jejich autora Ing. Stanislava Žáka (Středoevropský technologický institut, Vysoké učení technické v Brně). Předložená práce je zaměřena na prohloubení znalostí v oblasti pokročilé lomové mechaniky, konkrétně pro smykové zatěžování trhlin kombinované s případy geometrických odchylek trhlin od běžně používaných modelů. To mimo jiné znamená návrh nových přístupů a modelů a popis součinitelů intenzity napětí pro geometricky komplikované trhliny. První část práce je věnována shr
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Bílek, Tomáš. "Vícepodlažní administrativní budova ve Zlíně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225572.

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Design of a new steel structure administrative building in Zlín. Structure is consist of three parts. The part A is designed of three fields in the transverse direction and five fields in the longitudinal direction. This part is two-storey. The part B is designed of two fields in the transverse direction and three fields in the longitudinal direction. This part is six-storey (five-storey). The part C is designed of two fields in the transverse direction and five fields in the longitudinal direction. This part is four-storey (three, two-storey). In both directions in all parts of the building i
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Kovář, Jaroslav. "Pravděpodobnosti porušení keramické součásti s využitím Weibullovy teorie nejslabšího článku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382549.

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This thesis compares Weibull weakest link theory with inclusion of one and all three principal stresses. Principal stresses needed for this theory were calculated with finite element method. The informational research is in the introduction of this thesis. It includes ceramic materials, Weibull weakest link theory, Gaussian quadrature over spherical surface and ceramic head of hip joint endoprothesis. Theoretical part is used for next calculations of probability of failure. The probability of failure of ceramic rod loaded by four-point bending is calculated in first calculations. This task is
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46

Puskely, Jan. "Rekonstrukce blízkého pole antén." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-233540.

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Cílem disertační práce je navrhnout efektivně pracující algoritmus, který na základě bezfázového měření v blízkém poli antény bude schopen zrekonstruovat komplexní blízké pole antény resp. vyzařovací diagram antény ve vzdáleném poli. Na základě těchto úvah byly zkoumány vlastnosti minimalizačního algoritmu. Zejména byl analyzován a vhodně zvolen minimalizační přistup, optimalizační metoda a v neposlední řadě i optimalizační funkce tzv. funkcionál. Dále pro urychlení celého minimalizačního procesu byly uvažovány prvotní odhady. A na závěr byla do minimalizačního algoritmu zahrnuta myšlenka nahr
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Lošák, Pavel. "Návrh výměníku tepla dle ČSN EN 13 445." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228943.

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Diploma thesis is fucused on strength calculation of the heat exchanger according to ČSN EN 13 445. Introductory part introduce problems with the design of heat exchangers. In other parts there are a strength calculation of the heat exchanger according to ČSN EN 13 445, the results of the analysis with their appreciation. Annexes included output logs from the program Sant 'Ambrogio, and drawings documentation.
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Hermany, Jiří. "Záření soustav antén v blízké zóně." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217536.

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The aim of my diploma thesis is to analyze the antenna array radiation and to produce the antenna array radiation computation program. The program should display the electric and magnetic intensity and radiation power density distribution over the planar or cylindrical surface in the near-field area. The antenna array analyzed in this paper consists of a number of elementary dipoles placed in a row with a reflector which represents the conductive board situated in parallel to the row of dipoles. The demonstration program was built in MATLAB and allows computing and displaying the computed valu
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Holušová, Táňa. "Analýza napjatosti a porušení ve zkušebních tělesech používaných pro určování lomově-mechanických parametrů kvazikřehkých materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225575.

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The thesis is focused on a test on determination of the fracture-mechanical parameters of quasi-brittle materials, especially concrete. What is referred to as the wedge-splitting test is considered, for which a variety of shapes of notched specimen can be used. This work is exclusively focused on the cylinder-shaped specimen of diameter 150 mm and breadth of 100 mm. The test is performed virtually using Atena 2D FEM software. Progress of failure is observed during loading of the specimen for various notch lengths. The amount of energy released for the development the failure outside of the tes
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Klučka, Ivan. "Návrh výměníku tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231302.

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This thesis is focused on the thermal-hydraulic and construction design of heat exchanger with floating head. The introductory part is dedicated to the design of heat exchangers. Next part is focused on the thermal-hydraulic design created in HTRI software (module Xist. The next section is the strength calculation of selected components of the heat exchanger according to EN 13445 in software Sant'Ambrogio. The following part describes each of the analysis in software Ansys Workbench. The final part contains complete manufacturing documentation of heat exchanger.
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