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Design and control of the omnidirectional chassis
Rendek, Andrej ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
The master's thesis deals with the design of a locomotion system of an omnidirectional robot designed for application in sandy environment. The introductory part of the thesis is an overview in the field of current solutions of omnidirectional chassis of mobile robots. The thesis continues with a choice of possible variants. The variant evaluated as the most suitable is then elaborated in detail. This includes an analysis of the resistances acting on the chassis under conditions and movements representing omnidirectional movement in the sand. Analysis is followed by a selection of drives and a design solution supplemented by stress analysis. The final part is focused on the chassis control algorithm.
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Possibilities of enhancement of kaolin whiteness
Krahulová, Veronika ; Bartoníčková, Eva (referee) ; Opravil, Tomáš (advisor)
This thesis focuses on problematics of increasing the kaolin whiteness index. The aim of the thesis is to verify possibilities and efficiency of the mechanical method of increasing whiteness of kaolin using sand of a defined fraction. This method cannot be considered as a whitening operation of kaolin but as a pre-treatment of the raw material or as one of the steps in increasing the whiteness. There have been tested diverse proportions of added sand with which the batch of kaolin material was intensively mixed for various times. Moreover, there has been tested influence of water and total batch volume. To characterize prepared samples there have been used several methods; XRF and XRD analysis was used to determine the elemental and phase composition of raw kaolin before and after mechanical sand action. The UV - VIS method with reflectance was used to assess the achieved whiteness.
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Belt conveyor for gravel
Zeman, Vít ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The bachelor's thesis deals with the design of a belt conveyor for the transport of gravel. The used machine parts occurring in belt conveyors are analyzed here. The work contains a computational part focusing mainly on the design of drive power. The conveyor is composed of existing manufactured components, as well as components designed by me. The resulting design of the belt conveyor is modeled and described by assembly drawings. The work focuses on belt cleaners. Their possible location and construction are discussed in the research part.
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High temperature energy storage
Roden, Lukáš ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
Because of an increase share of renewable energy, there is a need to develop energy storage technologies, whether it is the electricity or the heat one. The main goal of this thesis is to design and assess a high temperature energy storage used for a long-term accumulation of a thermal energy. The designed storage is calculated for the needs of a family house with photovoltaic panels. It is used numerical method in the Excel software to simulate behaviour in storage. One of the biggest lack is a storage is large number of tubes, which are needed for a heat delivery into and out of the storage. This and the other related lacks make it impossible to a cost-effective application without the appropriate modifications.
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Design and control of the omnidirectional chassis
Rendek, Andrej ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
The master's thesis deals with the design of a locomotion system of an omnidirectional robot designed for application in sandy environment. The introductory part of the thesis is an overview in the field of current solutions of omnidirectional chassis of mobile robots. The thesis continues with a choice of possible variants. The variant evaluated as the most suitable is then elaborated in detail. This includes an analysis of the resistances acting on the chassis under conditions and movements representing omnidirectional movement in the sand. Analysis is followed by a selection of drives and a design solution supplemented by stress analysis. The final part is focused on the chassis control algorithm.
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Belt conveyor for gravel
Zeman, Vít ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The bachelor's thesis deals with the design of a belt conveyor for the transport of gravel. The used machine parts occurring in belt conveyors are analyzed here. The work contains a computational part focusing mainly on the design of drive power. The conveyor is composed of existing manufactured components, as well as components designed by me. The resulting design of the belt conveyor is modeled and described by assembly drawings. The work focuses on belt cleaners. Their possible location and construction are discussed in the research part.
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Memories
Conde, Tamara ; Schubert,, Theres (referee) ; Malý, Břetislav (advisor)
In this work I reflect on the obsessive compulsive tendency of materializing fleeting thoughts and moments. I use leaves and their placement and detachment from landscapes as a metaphor to memories, through an installation with video.
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Possibilities of enhancement of kaolin whiteness
Krahulová, Veronika ; Bartoníčková, Eva (referee) ; Opravil, Tomáš (advisor)
This thesis focuses on problematics of increasing the kaolin whiteness index. The aim of the thesis is to verify possibilities and efficiency of the mechanical method of increasing whiteness of kaolin using sand of a defined fraction. This method cannot be considered as a whitening operation of kaolin but as a pre-treatment of the raw material or as one of the steps in increasing the whiteness. There have been tested diverse proportions of added sand with which the batch of kaolin material was intensively mixed for various times. Moreover, there has been tested influence of water and total batch volume. To characterize prepared samples there have been used several methods; XRF and XRD analysis was used to determine the elemental and phase composition of raw kaolin before and after mechanical sand action. The UV - VIS method with reflectance was used to assess the achieved whiteness.
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