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Modelling and analysis of auxetic materials response on the mechanical loading
Vítek, Tomáš ; Skalka, Petr (referee) ; Ševeček, Oldřich (advisor)
This bachelor’s thesis is focused on auxetic materials, especially on their response on the mechanical loading. Historical development, significant mechanical properties, different ways of modelling and possible practical applications of these materials are described in the research part of the thesis. The computational part deals with the detailed analysis of selected auxetic structures in order to evaluate their elastic properties depending on different geometric parameters and also on the magnitude of applied deformation. Computational modelling is primarily performed using the software ANSYS Mechanical APDL based on the finite element method (FEM). This method is briefly explained in one chapter. In the following part of the thesis the process of creating a parametric model and reducing the whole structure to a minimum geometry size (a part of a basic unit) is described. A detailed explanation of generating the mesh and setting appropriate boundary conditions is also included together with the results evaluation. Elastic properties obtained by numerical simulations are then compared to available analytical model. Dependencies of elastic properties are presented for a wide range of values of selected geometric parameters and applied deformations of the structure considering small and large deformation regimes. An influence of these parameters on a structure response during the mechanical loading is discussed based on these dependencies. At the end of the thesis the values of elastic properties computed using a finite element method are confronted to the experimental data available in the literature and the validity of the computational model is considered based on this comparison.
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Information System for Project Management and Collaboration Support
Vítek, Tomáš ; Květoňová, Šárka (referee) ; Rychlý, Marek (advisor)
Project management is used in increasing number of companies. Competition on the market requires companies to work more efficiently and approach separate orders as independent projects. Teams that work on the projects consist of employees from different departments, from subcontractors and from the client as well. Rapid development of broadband internet connection changed work methods and use of information technology. Thanks to ubiquitous internet connection software application delivery model known as Software as a Service (SaaS) is gaining on popularity. Main aim of this project is to design an information system that would support project management and allow effective team communication and collaboration.
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The manipulator for a depot
Vítek, Tomáš ; Sedláček, Martin (referee) ; Kašpárek, Jaroslav (advisor)
The bachelor thesis deals with manipulation equipment for handling "big bags" on a flat storage surface. At the beginning I deal with the analysis of current mobile manipulators for bag handling. In the next parts of the bachelor thesis I deal with conceptual design, strength and functional calculations and at the end is elaborated a model along with drawing documentation.
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Small Condensing Steam Turbine
Vítek, Tomáš ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
The goal of this Master’s thesis is to create the design of a low power condensing steam turbine. The turbine has a Curtis control stage and a reaction blading. The work also contains the calculation of gland labyrinth seals and the balancing piston, specification of a forces and losses at bearings. Finally, the gearbox and generator are selected and the efficiency at generator’s clamps is specified. The Master’s thesis includes the design drawing of a longitudinal turbine view.
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Heat exchanger design
Vítek, Tomáš ; Lisý, Martin (referee) ; Špiláček, Michal (advisor)
This bachelor thesis deals with the design of an additional flue gas exchanger for the use of residual energy of flue gas. Part of the work is a summary of the knowledge about heat exchangers, their principle, operation and maintenance. The next part of the thesis is the calculation draft of the heat exchanger, calculation of heat transfer and subsequent calculation of hydraulic losses for the designed exchanger. Part of the bachelor thesis is a drawing documentation of the designed exchanger too.
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Correlation between the popularity of the ANO brand in the Moravian-Silesian Region and the success of the elected mayor Tomáš Macura in the 2022 municipal elections
Vítek, Tomáš ; Shavit, Anna (advisor) ; Konrádová, Marcela (referee)
The bachelor's thesis titled Correlation between the Popularity of the ANO Brand in the Moravian-Silesian Region and the Success of Elected Mayor Tomáš Macura in the 2022 Municipal Elections is dedicated to a case study of Tomáš Macura within the framework of municipal politics in Ostrava. The theoretical part of the thesis defines the terms associated with brand, branding, political brand, and personal political brand. It is followed by a chapter on the socio-political context, where the work summarizes the ANO 2011 party's results at different political levels, with a specific focus on the Ostrava region. This chapter also addresses the rise of the ANO 2011 party, along with its history. A subsequent subsection is dedicated directly to Tomáš Macura and his political career. In the analytical part, the thesis delves into the analysis of internal party research and the media visibility of Tomáš Macura prior to the 2022 municipal elections. The result of the study reveals that both parties - Tomáš Macura and the political party ANO 2011 - benefited from their coexistence, thus creating a symbiotic relationship between them.
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