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Design of a complex HIL simulator of car boot door
Obrtáč, Tomáš ; Krejčí, Petr (referee) ; Spáčil, Tomáš (advisor)
This thesis covers the development of complex HIL simulator for the fifth car door. The beginning of the thesis is dedicated to theoretical research in the area of In-the-Loop testing. Practical part describes development of HIL simulator complemented by power electronics part. A simulation environment Matlab/Simulink was used for control design and analysis. Before the beginning of the work was measured signal part of control unit and specific signal sequences were identified. The control was applied on sbRIO device from National Instruments company with the implementation of a model on FPGA. Specific requirements for sensing speed and generation of communication signals lead to creation of unique hardware for application needs. The result of the thesis is complex HIL simulator with intuitive GUI and possibility of simulations a wide range of DC motors.
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Design of airconditioned chamber for stratospherical baloon
Gedeon, Sebastián ; Spáčil, Tomáš (referee) ; Krejsa, Jiří (advisor)
The aim of this bachelor thesis is design of a heating chamber for a stratospheric balloon. The chamber's role is to preserve the load from the impact of the environment in which the baloon is going to be situated. The process of protection of the load is described in three steps. The first one is to characterize the flight dynamics which consits of the following: elevation time, descending time, maximal height reached, air characteristics changes depending on time. The second step deals with flight energetic balance. The total heat losses or the total heat increase of the chamber in different weather conditions have to be defined resutling from step one. The third step is to design the constructing or functional elements of the heated chamber, so that the chamber could overcome extreme conditions during the flight and to prevent the damage to the load. The energetic balance calculations are presented in the Microsoft Excel document. This document is free to read and can help with scientific construction projects.
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Testing platform with 3 dof
Spáčil, Tomáš ; Houfek, Lubomír (referee) ; Grepl, Robert (advisor)
This thesis deals with development and construction of parallel manipulator with three degrees of freedom whose assumption of usage is testing tanks for NH3. In this work we are going to investigate the design of the mechanism in Matlab Simulink. Design of the electronic is introduced and also the control program is developed. The result of the work will be a prototype of manipulator.
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Design and implementation of RGB sensor for educational unit
Švehla, Lukáš ; Krejsa, Jiří (referee) ; Spáčil, Tomáš (advisor)
This thesis deals with construction of RGB sensor which will be extension for preparing of the education kit equipped with microcontroller AT Mega on Arduino board. It contains a brief introduction how the photodiodes work. There is also described some chosen RGB sensors, suggestion and realisation of Printed Circuit Board. Next continue with measurement. Then is chosen and completion final product from the best sensors.
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Measurement and signal processing with myRio kit
Heteš, Marek ; Spáčil, Tomáš (referee) ; Kšica, Filip (advisor)
This thesis deals with research of options for data acquisition and signal analysis, of the myRIO kit and LabVIEW platform. Next it describes the design of application for data acquisition and signal analysis, and the last chapter of this thesis is about testing and a practical demonstration of our application.
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Analysis of AHRS unit robustness
Honkyš, Pavel ; Králík, Jan (referee) ; Spáčil, Tomáš (advisor)
This work deals with the measurement of low cost MEMS sensors and their measurement inaccuracy caused by acceleration, this effect is described as G-sensitivity. The aim was to put the test station into operation, to design electronics containing a microcontroller, which sends the measured information to a computer using a wireless module, here to estimate the angle of rotation of the sensor using a suitable algorithm and to design a compensation algorithm to suppress the effect of acceleration. The measured data were processed using Madgwick's algorithm, where the error of the measured angle of rotation occurred during the action of acceleration.
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Piston for 50kW 4-stroke SI-engine
Spáčil, Tomáš ; Dundálek, Radim (referee) ; Svída, David (advisor)
This bachelor thesis deals with a primary proportions calculation design of the engine and a constructional piston design for four-stroke spark-ignition engine. It is also contains a design of crank mechanism and engine primary proportions. On the basis of empirical data I projected the piston primary proportions. Furthermore, this thesis deals with the solidity check of critical piston crosscuts according to the crank mechanism.
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3D scanner
Vrbičanová, Antónia ; Matějásko, Michal (referee) ; Spáčil, Tomáš (advisor)
The Bachelor Thesis deals with the creation of the 3D-scanner using webcam, laser, stepper motor, and Python programming language. The main goal of this work is to determine the accuracy and repeatability of the planar measurement using piece of the aluminum block by using specific methods of the image processing. By enhancement of measurement algorithm and stepper motor the coordinates of individual points a sample object are gained. It is possible to create a model in STL format from points coordinates using MashLab software.
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