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Stress and deformation analyses of the bridge near the Jedov mill
Hort, Michal ; Kovář, Jaroslav (referee) ; Fuis, Vladimír (advisor)
Bridges serve to many people every day, so it is necessary to be concerned about theirsafety. Analysis of bridge superstructures are used to increase their safety - and this is also the mainsubject of this thesis. Specifically, it is the analysis of the pedestrian bridge located near Jedov Mill on the Oslava river. For the stress and strain calculations, the method of joints is used, and that iscompared with the finite element method. During the comparison of the methods which hadbeen used, it was found, that the method of joints is suitable for identifying critical points, but cannot accurately determine stress values. While the finite element method can both, identify critical locations and determine the exact stress values. These calculations determinedthe critical locations on the footbridge, which are in the outmost members of the structure. By enlarge their cross-section would increase the safety of the structure. Among the critical trusses do not belong trusses damaged by the footbridge crash. The safety factor of the pedestrian bridge to the elasticity limit state, which is k = 1.74, provides a sufficient reserve for the further use of the footbridge, even if the cross-sections of the above mentioned members are not increased.
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Computational Modeling of Nanoindentation
Kovář, Jaroslav ; Čech,, Jaroslav (referee) ; Dlouhý, Ivo (referee) ; Fuis, Vladimír (advisor)
Doctoral thesis is aimed on the computation modelling of a nanoindentation test. The informa-tional research of nanoindentation test and analytical models, which were used for derivation of the formulas for evaluation of measured data, is done in the introduction. Analytical models were derived with few simplifying assumptions, whose influence was analyzed in the computa-tional part of the thesis. This part is aimed on the computational modelling of nanoindentation test with the use of finite element method, especially the nanoindentation test of fused silica, steel and thin layers deposited on substrate. These models were used for refinement of calculations by the influence of radial displacements under the tip of indenter and correction coefficient for the indenter shape. In the next part, the influence of the indenter bluntness and tilt on its shape function was analyzed. The last part of the thesis dealing with thin layers was aimed on the verification of one tenth rule of thumb for determination of reduced modulus and hardness with the blunted and ideal Berkovich indenter.
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Company Financing via Initial Public Offering
Kovář, Jakub ; Ptáček,, Roman (referee) ; Meluzín, Tomáš (advisor)
Subject of this thesis is initial public offering and it’s main goal is describing of obtaining external funds for company’s funding. In the first part of the thesis is description of basic structure of financial markets, especially stock markets. The term IPO and it’s advantages and disadvantages are described. The last part is focused on individual steps of IPO realization. This thesis is focused on evaluation of chosen company’s entry on stock market. Especially macro-economic presumptions for IPO, readiness of chosen company and choice of suitable market are evaluated.
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The database solution for storing measurement data
Holeček, Ivan ; Andrš, Ondřej (referee) ; Kovář, Jiří (advisor)
Diploma thesis is focused on elaboration of database solution for saving measured data. In theory part analyses database query language and database management system Microsoft SQL Server 2017. Further in theory part is focused on programming environment for application development using C# .NET. Thesis includes database solution for saving measured data, service console application for saving data into the database and user application for creating new measuring, representation of data and user administration.
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Proposal of Marketing Plan
Kovář, Jan ; Mráček, Pavel (referee) ; Šimberová, Iveta (advisor)
The theme of my bachelor’s thesis is a marketing plan regarding to Czech representation of Ford Motor Company. The thesis deals with a stabilization of model Mondeo and its position in comparison to the competition of medium-size automobile category and increasing of its sales. It also treats of conditions within a large competition and pressure for constantly higher vehicle norms.
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Timig relay for Y/D automatical start
Kovář, Jaroslav ; Vondruš, Jiří (referee) ; Hejkrlík, Jan (advisor)
This project is concerned with a concept of timing circuit used for an automatic start of the asynchronous engine Y/D. By pressing the button START, is the concactor ( the relay ) activated. After injury timing delay the concactor Y drops out and simultaneously the concactor D pulls in. By pressing the button STOP, the concactor drops out. The concept of this electric circuit is quite simple, even if good hand-mindedness of a solver is required substantially. Especially in a soldering process and in scheming PCB in the computer program EAGLE.
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Mikroprocesor controlled equalizing repeater.
Požár, Marek ; Fedra, Zbyněk (referee) ; Kovář, Jan (advisor)
The correction amplifier is included in many audio applications. Its use is mainly in the regulation of volume, height, depth, balance settings, channels, and extended versions as well as more band equalizer. There are the simpler versions such as home movies, personal computers, car. However, there are even more demanding applications, where the correction amplifier extended to listening to different bands. Already mentioned band equalizer, which is now part of almost every recording studio. Applies even when the sound of concerts. This project deals with its links with the microprocessor and then control the PC via USB. Utility sends the PC via USB management factors in the microprocessor data, which is further processed and under control of the data correction circuit amplifiers using the IIC bus.
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Means augmented reality - research study
Trentin, Tomáš ; Andrš, Ondřej (referee) ; Kovář, Jiří (advisor)
The goal of this bachelor thesis is to create a summary of accesible information about the most widespread means of virtual and augmented reality. First section defines the difference between the virtual and augmented reality, the two subsequent chapters describe particular headsets and smartglasses, and the goal of the last section is familiarization of the software means for creating VR/AR applications and games.
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Static verification and variant design of roof structure of winter sport stadium in Znojmo city
Kovář, Jindřich ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The subject of the thesis is the conversion and alternative proposals for the existing steel structure roofing winter stadium in Znojmo. The building has a rectangular shape with dimensions of 84 x 63 m Roof truss structure is formed purlins and trusses girlandovými, vynášenými two steel arches with a span of 84 m variant solution is full board and reduced lattice truss plate. After evaluating both solutions was chosen the first option, which was subsequently designed and assessed according to applicable standards. Truss plate is designed on the original footprint supported the original concrete bearing walls. Eye lattice plate is a square with sides of length 3.5 mA at 3 m Joints are designed truss balls and anchoring pin.
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