National Repository of Grey Literature 104 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
The whirlpool design
Havlíček, Matěj ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
The bachelor thesis is conceived as a research of the availability of home whirlpools, their design and also as an analysis of the cost of production of the whirlpool. In the first part, there is an introduction of components and their variants for the whirlpool. The second part is focused on the author's design and the choice of components for the designed whirlpool. In conclusion, there is an expected price of the whirlpool and a comparison between buying a whirlpool or own homemade. The work contains a design in a program Autodesk Inventor.
Design of chassis for an electric minibus
Strnadel, Bronislav ; Ramík, Pavel (referee) ; Štětina, Josef (advisor)
The theoretical part of the master thesis is devoted to electric vehicles from their history through sources of electric energy and a swapping battery system to electric buses and autonomous driving. In the practical part the concept of autonomous electric minibus with the calculation of battery capacity are described. Furthermore, the attachment of battery to chassis and the idea of automatic swap are designed. In the last chapter the design of chassis itself can be found together with the FEM analysis.
Design of a functional model of a chassis dynamometer
Sobota, Matej ; Drápal, Lubomír (referee) ; Štětina, Josef (advisor)
The aim of my diploma thesis was engineering design of 4x4 chassis dynamometer model at 1:10 scale for presentation purpose and for testing RC cars models. The first part describes the current types of chassis dynamometers. The main goal of the thesis was designed the model itself in order to produce some parts of the dynamometer using 3D printing. The work also includes production drawings of individual parts and economic estimate of the entire production.
Temperature sensors
Mudrák, Michal ; Březina, Michal (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with problem int the field of temperature sensors. The beginning of the work is devoted to the definitions of the basic terms which are closely related to this topic. It is followed by distribution, description of the principle and realization of touch sensors with an electrical output. Marginally are discussed suitability of use and comparison of individual sensors. Next, the principle of calibration of resistance and thermoelectric sensors is described. The most common sources of calibration errors and measurement offsets are also summarized. At last, there is a practical example of linear calibration of chosen temperature sensors.
New trends in the development of jet engines
Chabada, Martin ; Klimeš, Lubomír (referee) ; Štětina, Josef (advisor)
The thesis is divided into two parts. The first part deals with the historical development and the primary division of jet engines followed by their construction and thermodynamics. The second part mainly focuses on new trends in the development, the 3D printing and alternative fuels used in the aviation industry.
Measurement of internal combustion engine performance on a chassis dynamometer
Farka, Jan ; Ramík, Pavel (referee) ; Štětina, Josef (advisor)
Since the beginning of the automotive industry, a lot of years have passed and the characteristics of vehicles and all its components, especially the engine, are being given greater and greater emphasis both in terms of safety, performance and ecology. The performance of the internal combustion engine, along with a number of other vehicle features, is measured on chassis dynamometers. The aim of the thesis is to describe and analyse the dynamometers produced, the tests performed on them and also to measure the performance of the internal combustion engine on the chassis dynamometer. In conclusion, the assessment of the impact of tests on the automotive industry is just mentioned.
Electric buses
Forman, Tomáš ; Porteš, Petr (referee) ; Štětina, Josef (advisor)
This bachelor work is dealing with the topic of electric buses, especially from the point of view concerning the design of traction components within the vehicle. The first part of the thesis is concerned with the history and a gradual development of electric cars, especially electro buses. The second part contains the summary of the most commonly used supply chambers of electric energy; the suitability of the usage of types of these supply chambers is also mentioned. The attention is paid to the location of such supply chambers within the vehicle as well. The following chapter is dealing with the traction electric engines – their most commonly used types, and the end of the chapter is concerned with the most usual placement of such components in the vehicle with the list of plus and cons for individual kinds. In the fourth chapter are listed certain types of electric buses in the contemporary market, with the emphasis laid on the construction solution of individual producers. The last but one chapter contains the summary of what direction is the current market of electric buses moving to, and what is the current development of this field. The very last chapter is the practical one, where I am trying to show the simplified method when calculating the optimal capacity of the batteries needed for the chosen route of the electric bus.
Thermodynamics of 1D ideal gas flow in Matlab
Fúdor, Vlastimil ; Klimeš, Lubomír (referee) ; Štětina, Josef (advisor)
The aim of this bachelor's thesis is created toolbox which solve one-dimensional flow of ideal gas. This thesis is divided to three parts. In first part is explained physical foundations for understanding flow of ideal gas. Second part is focused on description functions of toolbox. This part can be considered like a help. In the third part are solved examples by created toolbox. Important part is zip file, which contains function of toolbox.
Combination of numerical mathematics and neural network for the model of breakout prediction
Srba, Jan ; Štětina, Josef (referee) ; Mauder, Tomáš (advisor)
This thesis deals with creation of breakout prediction model implemented via artificial neural network in MATLAB, hence it contains theoretical description of artificial neural networks and also presents how the networks were used for the breakout prediction problem. In addition, models of heat conduction through the mold wall were created and used for generating neccesary data for proper training of artificial neural network. The thesis contains proper description of used numerical methods for solving the heat conduction problems. In the thesis are presented partial results and also results of testing created artificial neural network with usage of real data.
Heat transfer solution of solidifying steel system with phase change with moving edge conditions
Fedorko, Tomáš ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
Cílem diplomové práce je vytvoření 2D numerického modelu pohybujícího se řezu s proměnnými okrajovými podmínkami skutečné geometrie plynulého odlévání a chlazení předlitku v prostředí MATLAB. Model se zabývá vysoce nelineárními termofyzikálními podmínkami oceli během tuhnutí a chlazení. V práci je simulovaná nejen nelinearita termofyzikálních podmínek, ale také nelinearita při fázové změně. Fázová změna je modelovaná pomocí metody entalpie, metody zdánlivé kapacity a metody teplotního zotavení. Všechny výsledky práce jsou porovnány z více hledisek, jako např. z hlediska přesnosti, rychlosti výpočtu, nebo vhodnosti časového diskretizačního kroku pro nelineární problémy, a paralelizace.

National Repository of Grey Literature : 104 records found   1 - 10nextend  jump to record:
See also: similar author names
4 Štetina, Jakub
4 Štětina, Jakub
2 Štětina, Jan
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