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Design of a upright drilling machine
Matoušek, Kamil ; Bilík, Martin (referee) ; Blecha, Petr (advisor)
The subject of this thesis is to propose a design of an upright drilling machine. The upright drilling machine is described in the first part. Research about machines available on the market nowadays is accomplished in the second part of the thesis. Based on this research the parameters of machine are selected in the final part and proposal of the engineering design of an upright drilling machine. Basic construction calculations are made too. The result of this thesis is an assembly drawing and a 3D model of an upright drilling machine.
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Two-speed gearbox
Kratěna, Jan ; Pokorný, Přemysl (referee) ; Ždímal, Pavel (advisor)
The objective of this work was to create the „Technical Documentation of Two-Speed Transmission“. The submission included a brief content of the demanded work. At first, calculations of gear ratio, tooth system dimensions and module were performed. Subsequently calculations of single tooth wheel loads and their safety were performed. After the tooth system calculation the shaft, bearings and key calculations followed. The Technical Documentation was completed with pictures and charts that illustrate the individual load points. A 3D model of the two-speed transmission inclusive detailed drawings of the individual shafts and tooth wheels were created as a part of the documentation as well.
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Automotive Alternator Innovation
Volek, Martin ; Hýsek, Roman (referee) ; Hájek, Vítězslav (advisor)
The work deals with the analytical electromagnetic design of automotive claw-pole alternator 14V/120A. This design is verified in program Maxwell with a RMxprt tool. The results of both calculations are compared. Designed alternator is also compared with the results measured in the laboratory on the alternators of similar type. Furthermore, there are analyzed individual power losses of machine and listed options of reducing these losses, which results in an increase in overall efficiency.
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Manual pumps
Matis, Michal ; Šedivý, Dominik (referee) ; Štigler, Jaroslav (advisor)
This thesis describes manual pumps. It contains research about history of usage of these pumps, further it deals with some pumps used today (construction, materials, pros-cons). Also it is pointing out on pumps in developing countries, which are used in places with lack of drinking water. In practical part is described design procedure of pedal-powered pump.
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Steam turbine
Skoupý, Pavel ; Ing.Duda (referee) ; Fiedler, Jan (advisor)
The master´s thesis concentrates on a project of steam turbine with controlled extraction points destined for a communal waste incineration plant. First, there the history of devices using steam as a moving medium is introduced and than follows the description of computing program, where the calculation was running. The master´s thesis subject consists in the thermodynamic project of turbine vaning, in basic project of gearbox including the check calculations and in technical economic comparison of single shaft and twin shaft constructional design. The design documentation is worked up according to the calculated outcomes and contains longitudinal section of turbine and dispositional turbine and gearbox settlement.
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Project of worm gear for lift mechanism
Otisk, Jan ; Malach, František (referee) ; Malášek, Jiří (advisor)
This graduation thesis dwells on a worm gear design for an elevator mechanism in an already existing wheel case with actuator unit S3 for elevator type BOV 320/0,63. The work includes dimensional and control calculation for the worm gear and as an attachment you will find spiral worm and worm gear drawing documentation, including its specific location.
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Brake mean effective pressure of an internal-combustion engine for passengers cars and motorcycles
Vopršal, Oldřich ; Svída, David (referee) ; Drápal, Lubomír (advisor)
The aim of this work is to discuss the meaning, definition and mapping of the characteristics of the value of the mean effective pressure depending on the historical development of internal combustion engines of automobiles and motorcycles from the initial concepts to the current development. In this work I want to compare and evaluate the values of the mean effective pressure for non-supercharged and supercharged piston combustion cars and motorcycles. Part of the work will be a graphical representation of the values of mean effective pressures and subsequent analysis and evaluation of the values against the design concept of the internal combustion engine in the historical period. Furthermore, a description of the structural elements that contribute to the increase of the mean effective pressure.
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Turbine efficiency as a function of speed
Woffová, Helena ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
The subject of the thesis is condensing steam turbine with the required power of 50MWe and set input and output parameters. The turbine is designed as a two-body turbine. There is also designed balance scheme with reheating, regeneration and air condenser. Subsequently, the thermodynamic calculation for three variations of high pressure part with different speeds is demonstrated. The result is evaluated in terms of calculated efficiency and also in an economic point of view. The output is a selection of the variation with the best parameters. Then the basic dimensioning calculations, the design of the leveling piston and the sealing system follows for this variation. A simplified section of this part is drawn. Finally, the balance scheme is adjusted based on the data and calculated for limited performance as well.
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