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Determination of mechanical parameters of rocks by analyzing full wave acoustic well logging record
Chalupa, František ; Procházka, Martin (advisor) ; Vilhelm, Jan (referee)
In this diploma thesis is at first a revision of field used process of interpretation of full acoustic well logging record in WellCAD program. This program uses an algorithm based on velocity analysis which uses semblance principle. Furthermore an independent interpretation of same data has been done in MATLAB program. In this one, individual steps of the process are verified using analysis of complex seismic trace - in particular by using instantaneous frequency. Both processes of interpretation were applied on wide spectrum of Bohemian Massif rocks with very different mechanic properties, so their robustness has been tested. The results of both interpretation processes have been compared and there haven't been found any fundamental differences, just minor, which can't be systematically eliminated with regard to WellCAD's capabilities. Interpreted values of Poisson's ratio and velocities of longitudinal and transversal have been used for comparison. As the credibility of mechanic parameters' values determined by interpretation processes mentioned above has been proven, other reasons of difference between mechanic parameters' values determined seismically and using static methods were searched for. At first a comparison of basic aspects in which the measuring methods differ (e.g. sample size,...
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The Development of Local Government in the Municipality of Písek
Chalupa, Daniel ; Čopík, Jan (advisor) ; Monika, Monika (referee)
The diploma thesis deals with local government municipal politics in the city of Písek. The work is focused on the development of local government in the period after 1989 to the present. The subject of the work is an analysis of the local political system as well as its activities in the field of municipal development. The work is divided into theoretical practical.
The theoretical part explains the basic concepts that are related to local government and communities alone, such as municipal government, municipal elections controversy.
The practical part then characterizes Sand historical, demographic socio-economic perspective. It also focuses on communal politics in this city, dealing with local political entities running the council controversies that arise here. The practical part includes analysis also municipal elections between 1994 and 2014 and describes the development of local government after the last elections in 2014.
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Management Functions of the Coach in the Chosen Sport
Chalupa, Pavel ; Novotný, Jan (referee) ; Peričková, Lucie (advisor)
The goal of this Bachelor´r thesis is to find out, if the coaches are using managerial functions in their coaching role. There are definitions of the terms related to coach´s management tools and their key qualities. The theoretical knowledges that I learnt are applied to divisional football club HFK Trebic. There are suggested recommendations for improving the quality of coach´s work in this thesis.
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Design of miniature thermal chamber
Červínek, David ; Bastl, Michal (referee) ; Chalupa, Jan (advisor)
This thesis is about designing and bulding temperature chamber. Main use for this chamber is to test devices which are designed in Mechlab laboratory. While I was developing this chamber I used Simuling for simulation of thermodynamic events. For LC filter simulation I used LTspice IV. Peltiers device is used as cooling/heating element. For calculation and control is used 3.5“ touch screen programmed in 4D Workshop. Final device is capable to automatically maintain set temperature in range of -13°C to 80°C. Temperature can be set as stationary or cyclic between two predefined temperatures. User can also choose temperature that will be used by regulator.
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Design of embedded system for control of educational model of rotary pendulum
Jajtner, Jan ; Chalupa, Jan (referee) ; Grepl, Robert (advisor)
The basic aim of this work is to improve existing model of rotational inverted pendulum by adding new mechanical features, implement the control algorithm to dsPIC microcontroller and develop related control electronics thus extending the functionality of current model while making it more compact. The work contains derivation of dynamic equations both by means of analytical methods and multi-body formalism of SimMechanics. These are used to design a state controller stabilizing the pendulum in inverse position. In addition, parameters of the system are being estimated experimentally. Swing-up controller is developed to drive the pendulum to unstable position. Various state estimators are added to controller to improve the control process while comparing their overall performance. The last point is devoted to development of superior state-automaton designed to switch between different regulating modes including fail-detection algorithms providing smooth operation of the model.
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Design of unit for Power HIL simulation of DC motor
Chalupa, Jan ; Maršík, Jiří (referee) ; Grepl, Robert (advisor)
This thesis deals with analysis and implementation of Power-HIL system that is designed to simulate real DC motor with comutator and permanent magnets. For problem analysis were used simulations of real components in Matlab / Simulink. The electronic parts of system were simulated with using the SimElectronic library. Idividual hardware components were designed according to simulation results. The outcome of this thesis is a power electronic simulator of real DC motor, which is implemented on dSPACE platform. The system allows software to setup parameters and behavior of simulated motor. The final system can be used for testing DC motor ECU (electronic control units).
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Design of control unit for two-wheeled self-balancing vehicle
Bastl, Michal ; Klimeš, David (referee) ; Chalupa, Jan (advisor)
This diploma thesis is a part of a project of two students. The aim of the project is to design safer electronics for the unstable balancing vehicle HUMMER and implementation of advanced diagnostics and fault detection. In the first part of the project we analysed the original vehicle using the FMEA analyse and created a new concept of the vehicle. The second part of the project describes a new hardware. I designed and tested the power electronics, control unit and supplies. The outputs of the work are prototypes which allow testing a new concept.
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