National Repository of Grey Literature 1,845 records found  beginprevious857 - 866nextend  jump to record: Search took 0.00 seconds. 
Design and production of an emission spectrograph tube for the SLAVIA microsatellite project
Zlínská, Marie ; Dvořák, Jaromír (referee) ; Píška, Miroslav (advisor)
The manufacture and design of components for the aerospace industry has its own specific requirements. One of these are the requirements for low weight, resistance to temperature changes, high rigidity and cost-effectiveness. This paper presents the design and subsequent manufacture of a tube for the SLAVIA project hyperspectral camera, taking into account the project requirements and the demands of the space environment. First of all, a thermo-structural analysis of the satellite's orbit around the Earth was carried out to identify possible deformations of the camera tube that could cause inaccuracies in image acquisition. It turns out that the lower the temperatures of the inner walls of the satellite, the more deformation of the tube and its position in satellite occurs. The design solution was then presented, followed by the fabrication of the camera tube, during which the manufacturability of the components and the assemblability of the device were verified. It has been found and confirmed that the most challenging task was to determine the dimensions of the grooves in such a way that the high stiffness of the whole assembly was maintained.
Robotic snake model control
Levek, Martin ; Matoušek, Radomil (referee) ; Hůlka, Tomáš (advisor)
The goal of this work was control of a robotic snake model in an unknown environment with randomly generated obstacles. The robotic snake is made of nine segments. These segments are serially connected with actuators, which are used to change the angle between neighboring segments. Its functionality was tested in a co-simulation between MATLAB Simulink and MSC Adams. The snake’s task was to slither through a gap between two walls and reach the target without a collision. The correlation between the snake’s behavior and the set movement parameters was observed.
Design of automatic rack warehouse management
Trnovec, Šimon Peter ; Štoček, Jiří (referee) ; Škopán, Miroslav (advisor)
The subjec matter of this diploma thesis is designing a material flow logic of an automated storage and retrieval system to the producion area of a plant. The logic control is visualised by a flow chart and a matrix of experiments is compiled to evaluate the AS/RS functionality. Experiments are performed with a simulation model created in the Siemens Plant Simulation software
Simulation of the trencher device prototype
Polák, Václav ; Sommer, Matěj (referee) ; Kašpárek, Jaroslav (advisor)
The aim of this thesis were a simulation and an analysis of the construction of a prototype of additional trencher equipment. At first an analysation of a prototype and a calculation of load states was made. A simulation was made in a multi body system in program MSC Adams View. According to load states was made a stress analysis in program MSC Apex Jaguar. All acquired results were analysed and according to them changes were made to the frame construction. Part of this thesis contains drawings documenting.
Modelling of the Gear Pump Manufacturing
Horák, Michal ; Rožňák, Ing Martin (referee) ; Videcká, Zdeňka (advisor)
The diploma thesis deals with the analysis and optimization of production lines of the gear pump components. Specifically, it is pre-production, ie a production line for machining gears and production line for machining of bodies. These two components are then assembled on the assembly line. The creation of a simulation model in the Tecnomatix Plant Simulation program, which corresponds to the real state of production lines, is used for optimization. The simulation model is then used to perform the proposed experiments in order to optimize production lines and select the ideal solution with respect to the selected objectives.
The Program simulating the mutes of brass instruments
Košař, Vojtěch ; Indrák, Michal (referee) ; Jirásek, Ondřej (advisor)
This Master’s thesis deals with the creation of a program that simulates an impact of sound mutes on the timbre of a trombone and a trumpet. The simulation in the Reaktor 6 environment is based on an analysis of this impact which compares the spectra and formant regions retrieved from the MATLAB environment. The analysis takes into account also the impact on harmonic overtones. Another part of this work is focusing on the theory of a trombone and a trumpet, their brief history, the parts they are consisting of and the principle of tone formation. In the Reaktor 6 environment there has been created also a sampler functioning as a virtual instrument for the trumpet and the trombon. The last part of the work deals with creating a simulation program with its structure and evaluation.
Design and virtual simulation of single-purpose machine
Zlámalík, Jan ; Husák, Michal (referee) ; Kaczmarczyk, Václav (advisor)
This thesis aim is to design a construction of single-purpose machine that will serve as a coffee machine operator. The theoretical part describes the concept of the machine design and its functions. Then the individual components are selected based on the specified requirements. The practical part describes the machine design and simulation in Siemens NX software with Mechatronics Concept Designer package. A software solution for the ESP32 microcontroller is then developed for the real machine. This software solution is ready to be controlled from a hierarchical higher-level system. The function of the machine is tested using a test application developed for this purpose.
Simulation of Unmanned Aircrafts in a Virtual Environment
Lindtner, David ; Lázna, Tomáš (referee) ; Gábrlík, Petr (advisor)
The master thesis deals with the issue of simulation of unmanned aircraft missions in a virtual environment. The aim of the work is to demonstrate basic and more advanced autonomous aerial missions in the simulated environment Gazebo - ROS 2. The work emphasizes the stability of the software solution and the stability of the communication between critical components of the aerial mission.
Simulation of electroporation effect in the heart for various application catheter designs
Kafka, Roman ; Hemzal, Martin (referee) ; Novotná, Veronika (advisor)
This master thesis describes modeling of electric and thermal fields in tissue during cardiac ablation based on irreversible electroporation. It is about basic principles and laws that applies to this problematics. Further, it describes the electric and thermal difference between DC and AC electroporation pulses. The follow-up work presents many simulation models of new cardiac catheters developed with research team.
Tests of integrated analog multipliers
Stolařová, Hana ; Dvořák, Radek (referee) ; Šotner, Roman (advisor)
This diploma thesis deals with the design of testing device (tester) for basic verification of parameters and construction of applications using analog multipliers fabricated in TSMC 0.18 m 1.8 V process. The tester is than used for several eperimental measurements such as AC responses, DC responses, total harmonic distortion, offset and input and output impedance. A part of the thesis covers also designs of application examples (circuits) wich use these special analog multipliers (triangular and square wave generator, 2nd order active filter, integrator, etc.).

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