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Utilization of artificial intelligence in vibrodiagnostics
Dočekalová, Petra ; Huzlík, Rostislav (referee) ; Zuth, Daniel (advisor)
The diploma thesis deals with machine learning, expert systems, fuzzy logic, genetic algorithms, neural networks and chaos theory, which fall into the category of artificial intelligence. The aim of this work is to describe and implement three different classification methods, according to which the data set will be processed. The GNU Octave software environment was chosen for the data application for licensing reasons. Further evaluate the success of data classification, including visualization. Three different classification methods are used for comparison, so that we can compare the processed data with each other.
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Design of a small vibration exciter
Palík, Václav ; Marada, Tomáš (referee) ; Huzlík, Rostislav (advisor)
The goal of this bachelor’s thesis is to design a small vibration exciter. The research part is devoted to researching the market and the availability of different exciters. Furthermore, the work deals separately with the design of electro-magnetic and mechanical parts of the exciter. The design of the exciter is valorised, and the possibilities of its use are evaluated.
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Modeling the heat propagation in the linear axis with a ball screw and servodrive
Malásek, Michal ; Pavlík, Jan (referee) ; Huzlík, Rostislav (advisor)
This diploma thesis deals with the creation of a heat propagation model for a linear axis with a ball screw and a servodrive. Many heat sources can be found on the axis, which mainly include the motor, bearings, etc. The aim of the research part, is to approach the issue of heat loss and propagation. Subsequently, a 3D model of the entire axis assembly is created. The result of the work is to analyze the sources of losses for the selected work cycle. The next step is to simulate the temperature distribution in selected operating cycles on the created 3D model of the axis.
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Energetic model of linear axis with ball screw and servodrive
Sládek, Vojtěch ; Tůma, Jiří (referee) ; Huzlík, Rostislav (advisor)
The aim of the thesis was to study the Energy Models of Linear Axes with Ball Screws and Servo Drives, to analyze the individual parts of the axis with respect to losses, the methodology of calculating the losses on the electrical part and the mechanical part of the drive and creating a complex algorithm that calculates the energy consumed for the specified motion. The thesis is divided into a theoretical and practical part, where the theoretical part is divided into the treatise on the electrical part of the axis and its losses and the part that deals with the mechanical part and its losses. The calculation is divided into the basic verification algorithm and the calculation on the given example. Each calculation is calculated for both linear acceleration and S-curve acceleration. For both types of acceleration, the result of energy and its course over time is also the waveforms of position, velocity, acceleration, angular acceleration, moments, powers, power, speed and currents over time.
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Online diagnostics of machine tool MCV 754
Rázgová, Benedikta ; Huzlík, Rostislav (referee) ; Zuth, Daniel (advisor)
This master’s thesis deals with online diagnostics of the machine tool and marginal analysis of surface texture. The first part of the thesis deals with problems theoretically, there are described the machine tools, maintenance, methods of technical diagnostics, specifically online vibrodiagnostic systems and an overview of profile and area parameters. In the practical part, two test samples created under ideal and degraded conditions. In the practical part, two signal processing processes under ideal and degraded conditions are compared using signal analysis from an online vibrodiagnostic system and surface texture analysis. Part of the work is the evaluation of the performed analyzes and recommendations for practice.
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FEMM program - preparation of education materials
Pešek, Michal ; Huzlík, Rostislav (referee) ; Vítek, Ondřej (advisor)
The manual is supposed to introduce to users the program FEMM. It is designed for solving low freqency electromagnetics problems. It shoul allow students, who are not experienced with work in english interface programs, make a model and set parametres needed for successful solution of required problem. There is description of setting and location of important program elements. Users have to quickly understand, how to work in program. FEMM work indeed in two dimensional mode and it is simplier, than expensive 3D programs, on the other hand, he is free for commercial and noncommercial use. It makes this program very interesting for home using by students. Licence restricton is related with program code itself and selling only.
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Signal analysis options on Arduino platform
Havlíček, Michal ; Zuth, Daniel (referee) ; Huzlík, Rostislav (advisor)
The aim of this bachelors thesis is to analyse signal with Arduino platform by creation of program which is able to perform calculations of signal´s mean value, efficiency value, Fourier transform and subsequent export of these results into computes. Furthermore it examines testing of this program and evaluation of possible limitations with usage of Arduino platform.
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Use of sensors in automation
Kiza, Jakub ; Huzlík, Rostislav (referee) ; Blecha, Radim (advisor)
This bachelor thesis contains a summary and conclusion of technical conditions of industrial sensors in the automatization field. The objective of this thesis is to analyze industrial sensors and subsequently list possibilities of their utilization in the automatization. This analysis was performed based on particular kind of sensors which were divided in accordance to their physical qualities. As a result of acquired research regarding principles and function of these sensors, it is possible to specify the essential advantages and disadvantages of the sensors. This acquired research allows for accurate usage and implementation of sensors in the engineering practice. Therefore, this thesis offers a summary of sensor information which can assist a reader to choose the proper sensor for particular applications.
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