National Repository of Grey Literature 365 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Computational Model and Analysis of Self-Driven Vehicle
Gardáš, Milan ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
This thesis discusses autonomous vehicles. At first it contains describing development of these type of vehicles, how they work and discuss their future development. Further it describe tools which can be used for create model of autonomous vehicle. The thesis includes design, description of the development and testing of the model in the UPPAAL Stratego verification environment. The resulting model is a system of intercommunicating timed automata. The analysis of the model properties is based on the method of statistical verification. The model allows us to investigate behavior of an autonomous vehicle in situations which correspond to regular traffic.
Microscopic Simulation of the junction Malá Amerika
Horák, Michal ; Mikolášek, Igor (referee) ; Všetečka, Martin (advisor)
This bachelor thesis deals with the modeling of traffic flow in several variants of the transport network. Variants are modeled in Aimsun. Current status data was obtained by field observation. In the created models, the traffic flow of both current and future traffic intensities is simulated. Based on the outputs of the simulated operation, the variants are assessed. The proposed variants are compared and the most suitable arrangement chosen.
Design for production of analog watch case
Vilímovský, Daniel ; Kouřil, Karel (referee) ; Sedlák, Josef (advisor)
The aim of this bachelor thesis is a brief introduction to the watch industry and the characteristics of Rapid Prototyping. The practical part is focused on creating models of individual watch components in 3D parametric program Autodesk Inventor and following production by various methods on 3D printer. Part of the thesis is also assembly, including the watch movement installation. The thesis is concluded with a technical-economic evaluation and comparison with currently used production methods.
Comparison of short-circuit current calculations by simulation programs with the standard ČSN EN 60909 ed.2
Procházka, Jiří ; Koudelka, Jan (referee) ; Bátora, Branislav (advisor)
This master's thesis deals with the comparison of the short-circuit current calculation for a model example according to the standard IEC 60909-0:2016 with simulation programs. The first part deals with short-circuit in general together with an example of calculation of short-circuit currents. The next part of the master’s thesis deals with creating models of network elements by different simulation programs. The last part deals with dynamic simulation of model example together with programs settings. Finally, the results of simulations are evaluated.
Computational Model of Control and Behaviour of Self-Driven Vehicle
Kužela, Michal ; Bidlo, Michal (referee) ; Strnadel, Josef (advisor)
This thesis explains basic principles of autonomous vehicles. Based on these principles, it describes proposed simulation model of autonomous vehicle with its behavior in different outer conditions. The model is composed from sensors and vehicle itself. Sensors use an algorithm based on line intersection to detect collisions. Vehicle model is mostly described by physical formulas and custom decision algorithms. Its surrounding objects have parameters that are randomly selected for each simulation run. This thesis also explains implementation of the simulation model with its own simulation framework and an analysis tool for collected data. All of these features are implemented in JavaScript with use of Node.js and an Electron framework.
HIL test stand for universal electronic control units
Zouhar, Štěpán ; Musil, Filip (referee) ; Brablc, Martin (advisor)
This diploma thesis is focused on testing of Electronic Control Units, especially functional testing in which hardware and software is verified and also Model in the Loop, Software in the Loop, Processor in the Loop and Hardware in the Loop testing methods. Within practical part of this thesis testing stand for functional test of the ECU was developed and manufactured. It is connected to PC via Input/Output card, testing is controlled by MATLAB script. Whole process of testing is automated from initial upload of testing firmware to tested ECU over all phases of test up to bootloader flashing. Hardware in the Loop test was also created, in which ECU works as controller and DC motor is simulated in real time with PC in MATLAB environment.
Basic models of simple electric circuits and their use in physics teaching and learning
Vítková, Miriam ; Dvořáková, Irena (advisor) ; Koudelková, Věra (referee)
The bachelor's thesis focuses on simple models of electric circuits that are used in physics classes. First I selected the overview of the models from accessible sources. Subsequently I categorised them to models that are suitable for classroom demonstration and to models that are more appropriate for discussion or error analysis. For a basic overview of models that are currently used in physics classes I created an online questionnaire and also interviewed several teachers of physics.I discovered that although there are various simple models of electric circuits available, not all of them would be suitable for classroom demonstration without subsequent discussion about possible errors. I also found out that there are teachers who like to use models of electric circuits in their classes whereas others avoid them because of the risk of students' misinterpretation.
Studium vedení tepla metodami počítačového modelování
STANĚK, Jakub
This diploma thesis is concerned with a problem of the line heat simulation by different kinds of materials with computer - aided COMSOL Multiphysics. The thesis is composed of three thematic units. In the first part there is a line heat principle shortly described and his basic physical quantities which are necessary for correct defining of the simulation. The second part is concerned with the software, its function, auxiliary modulus and a description of single actions, which are essential for making of the model. In the last part there is the whole process of the multiphysical task creation that enables to simulate line heat in a specific material in reliance on time.
Modeling, simulation and experimental measurement of reaction of systems heating / ventilation requirements of regulation
Matějíček, Michal ; Komínek, Petr (referee) ; Hirš, Jiří (advisor)
The diploma thesis deals with the behavior of technical systems of the student dormitory in Brno. The temperature and humidity climate was measured and evaluated in the building. The measurement is then compared with the computer simulation created in DesignBuilder. The geometric model of the building was created in Revit, which supports BIM technology. Based on the evaluation of the experiment, the optimization of the technical systems in the building was proposed.
The Effective and Ecological Burning of Biomass
Špiláček, Michal ; Kolat, Pavel (referee) ; Masaryk, Michal (referee) ; Skála, Zdeněk (advisor)
This work deals with the creation of a numerical model of a biomass combusting chamber on a grate. The research part of this work describes the basic properties of biomass important for its combustion and the biomass combustion process itself. For this process which it is necessary to know the dynamics of the chemical reactions and the overall mechanism of a grate combustion of fuels. It also describes the production of harmful emissions that can be generated by combustion of biomass and the emphasis is mainly on the production of nitrogen oxides. In the next part is described the combustion device itself and the basic mathematical model which incorporates the mechanisms of heat transfer, flow of fluids and transport of chemical species. The basic mathematical model is then extended to a complete mathematical model by determining the initial and boundary conditions. Subsequently, the results of the computer simulation of the mathematical model are presented and commented. The main focus are the emissions of nitrogen oxides and hydrocarbons. These results are used to design an improvement of the geometry of the combustion chamber.

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