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Optimization of parameters of dynamic relaxation in solving plastic limit states of structures
Poláček, Milan ; Nevařil, Aleš (referee) ; Vlk, Zbyněk (advisor)
The aim of the thesis is to create an analytical model of frame construction. Determining load at which individual plastic hinges are formed until the collapse of the structure. The analysis is going to be performed by RFEM with an additional module RFDYNAM. Subsequently, the parameters of dynamic relaxation is going to be optimized to specify and speed up the calculations. Finally, the optimized parameters is going to be used to analyze the storeyed frame construction formed Ing. Jan Vales including a comparison of findings.
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Control of Real-Time Digital Audio Signal Processing Algorithms using HTML Browser
Slováček, Martin ; Mačák, Jaromír (referee) ; Schimmel, Jiří (advisor)
VST (Virtual Studio Technology) is one of the most used for real-time audio processing. VST effects are inserted to host applications in the form of plug-ins. This thesis discusses a design of a VST host remote control using a Java applet displayed in a web browser. A graphical user interface of the applet consists of graphical controllers created in this thesis. The number of controlled parameters is passed on to the applet by server using an XML configuration file. Three types of controllers are available: a slider, a knob and a button. If a parameter value change occurs, the applet sends a message with the parameter values to the server. Subsequently, the server reacts to this change by setting the parameters of the loaded VST module. The proposed design was completely realized and practically tested.
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Parameters identification of the asynchronous machine substituting circuit
Běloušek, Radim ; Cipín, Radoslav (referee) ; Patočka, Miroslav (advisor)
Mathematical model and substituting circuit both include several parameters, which is important to determine for a control. This work is target on identification of parameters of substitute circuit of the asynchronous machine in -network form. The work is divided into several main units. In the first of them are shown the methods of identification of asynchronous machine on the selected machine. The measuring of torque characteristic by classical way with dynamometer and by dynamically with fly-wheels is shown in the next part of this work. The final part of this work is devoted to interpretation and comparison of achieved results.
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Testing of the LTE basic parameters
Hocz, Jan ; Miloš, Jiří (referee) ; Hanus, Stanislav (advisor)
This thesis deals with brief introduction to LTE system and processing of signal in uplink and downlink. There is also presented some basic parameters that must be met for correctly working equipment in system. These parameters are divided for transmitter and receiver. From these parameters were chosen those, which can be measured in school labs with available measurement devices. For measuring these parameters were created instructions. For easier record of measured data was prepared protocol with blank tables.
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Apparatus for parameter identification instrument voltage transformer
Tománek, Drahomír ; Valenta, Jiří (referee) ; Dohnal, Petr (advisor)
This master thesis describes the design and production of devices for identifying the parameters of the instrument transformer. Work is divided into seven chapters. The first part focuses on the production of instrument voltage transformer. The next section describes the measurement and description of the parameters of instrument voltage transformer and design of printed circuit boards. Another section is devoted to a program for measuring card. The final part is manufactured and tested unit conducted the first test measurements.
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Study and comparison of CNC control systems
Nytra, Tomáš ; Vetiška, Jan (referee) ; Bradáč, František (advisor)
The goal of this bachelor’s thesis is to create research of state-of-art of implemented CNC cycles of controll systém. At first the basic problematice of programming numerical control with possibility of own programming. Then the thesis is focused on properties of control systems of companies Beckhoff and Siemens. There are analyzed functions of individual cycles, their features and parametrs, finished with mutual comparison. Ending of thesis is devoted to the development of a macro for two missing cycles of Bekchoff system.
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Optimization of the injection process of a diesel engine dosing module component
Ohnút, Lukáš ; Podaný, Kamil (referee) ; Žák, Ladislav (advisor)
This diploma thesis deals with optimalization of the injection process of the part and its implementation into serial production. In the first step, the injection mold was tested and injection parameters were initially defined. In the next step, simulations were created in the CADMOULD program. These simulations calculated theoretical injection parameters and these were compared with the parameters set on the injection molding machines. Then, the shape measurement protocols were prepared, according to which the shapes in the cavities of the injection mold were optimized. Finally stress tests were performed, which detected problems in the injection process.
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Pricing the building using parametric input of technical-economic indicators
Skála, Jan ; Šimáček, Ondřej (referee) ; Krejza, Zdeněk (advisor)
This diploma thesis deals with parametric input of technical-economic indicator for particular type of constructions. The goal of this thesis was to design parametric input that gives precision to the price calculation of sports halls in pre-investment phase of the building project. In the theoretical part there were construction and pricing related terms described. In the practical part 18 projects of sports halls, built in Czech Republic within last 8 years, were analysed. Initially there were parameters affecting the price of sports halls identified, then there were 4 models of the parametric input created. These inputs were then evaluated and compared to each other and also compared to the method that is nowadays used for the price estimation in the pre-investment phase of the building project. It was proved that parametric input increases the accuracy of estimated price of sports hall compared to the traditional method of calculation.
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Sensitivity analysis of frequency filters with current active elements
Kupčík, Petr ; Koton, Jaroslav (referee) ; Kubánek, David (advisor)
This bachelor´s thesis is about sensitivity analysis of frequency filters with current active elements. Includes theory of sensitivity analysis and sensitivity function. There are two second order multifunction frequency filters analysed. The first one is filter with Current Mirrors and Inverters (CMI). The second one is filter with Current Operational Amplifiers (COA). Conclusion is description how tolerances of passive and active elements affects frequency characteristics of filters and comparison of these filters in light of sensitivity. Next chapters are occupied by another two analyses: Parametric Sweep and Monte-Carlo. These analyses are applied on two fourth order frequency filters with Differential Input / Output Current Followers (DIOCF) and also on two previous second order filters (only low-pass filters). Parametric Sweep is applied on internal parameters of active filter elements (not in case COA). During Monte-Carlo analysis passive elements have tolerance 5% and active elements are considered ideal. Conclusion is description how tolerances of passive elements (Monte-Carlo) and parametres of active elements (Parametric Sweep) affects frequency characteristics of filters.
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