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Stress Evaluation, Coping and Reduction
Koutný, Pavel ; Pelánek, Luboš (referee) ; Franková, Emilie (advisor)
The diploma thesis concentrates on the stress that the vast majority of employees face today. The thesis analyzes the various types of stress, its indication and manifestation. Furthemore, the factors that contribute to stress, their identification and elimination are also discussed. The focus of the thesis is on the theoretical analyzis of the problems. Moreover, it measures the stressors on the workplace, too. Specifically, it evaluates the level of stress in P&L spol. s.r.o. In the conclusion, the recommendations that decrease the detected stress factors are given.
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Multifunctional altimeter
Lízner, Miroslav ; Neužil,, Tomáš (referee) ; Klusáček, Stanislav (advisor)
This bacheleor thesishis deals with pressure, humidity and teperature sensors to microcontroller connection possibilities. The main goal of this work is to develop the recording touristic altimeter. The hardware solution based on ATmega64 microcontroller and software implementation is described in practical part of this work.
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Matrix display
Gábik, Matej ; Šťastný, Ladislav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is to implement autonomous information portal using matrix display BUSE BS210. The first part deals with the theoretical problem-solving and management options display. The second part is dedicated to the development of necessary hardware and the last part is the software described herein microcontroller and microcomputer Raspberry Pi.
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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havlíková, Marie (referee) ; Šedivá, Soňa (advisor)
My diploma thesis describes upgrade of flowbench serving as test rig for regulation valves characteristic measurement. At the beggining, there is an introduction to the water regulation valves theory followed by current machine condition description. Next chapter defines needed improvements and at the end follows proposition of improvements and necessary component definition and final realization. Final chapter summarizes complete project.
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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havránek, Zdeněk (referee) ; Šedivá, Soňa (advisor)
My diploma thesis describes upgrade of flowbench serving as test rig for regulation valves characteristic measurement. At the beggining, there is an introduction to the water regulation valves theory followed by current machine condition description. Next chapter defines needed improvements and at the end follows proposition of improvements and necessary component definition and final realization. Final chapter summarizes complete project.
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Design and realization of the pull strength measuring device for SMD
Valíček, Jan ; Klíma, Martin (referee) ; Otáhal, Alexandr (advisor)
This thesis deals with the design and implementation of a device for measuring pull strength by surface mounted devices (SMD). It analyzes the theory of pull strength testing of solder joints with emphasis on standard IEC 62137-1-3 and describes the selection of components utilized to create mechanical construction and electrical parts. These electronic parts made or innovated in this work were control system based on microcontroler Atmega164P, power circuit for stepper motor and communication of measure equipment TEST 321 with PC. The whole design is complemented by simulation of mechanical stress to the critical components using ANSYS. The conclusion summarizes the most important parameters of this equipment.
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Ventilation calculations in synchronous machine
Judas, Jan ; Deeb, Ramia (referee) ; Janda, Marcel (advisor)
The aim of the project was to get familiar with the environment of ANSYS CFX, create several models of fans and synchronous machine model in Autodesk inventor, create model of cooling medium flow through the machine with these fans and evaluation of results. Firstly the thesis describes the synchronous machine itself, losses of the machine, the flow of power of synchronous machine and methods of its cooling. Next the thesis describes each kind of heat transfer, laminar and turbulent flow. The thesis also refers of kind of the fans and the program used to calculate the flow Ansys CFX, including the method that Ansys used to calculate. The work describes the individual modification of fans and setting of calculation in ANSYS. Then displays the results of the analysis these fans for different numbers of fan blades and for modification of the fan. Then the thesis analyzes selected modifications due to changing speed. In the last chapter shows the analysis of flow in the machine with three different fans. In particular, there is shown the mass flow rate, pressure and its distribution on areas for evaluation.
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