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Design and production of a clamping bar for a rifle scope
Džuppa, Filip ; Kolomý, Štěpán (referee) ; Dvořák, Jaromír (advisor)
In this bachelor thesis, a fully functional innovative rail for mounting a rifle scope, on a hunting rifle, was designed and fabricated. Market research is presented in the first chapter and then in the third chapter, in several iterations, a new rail is designed. In chapter four, the fabrication of the jig for machining and the actual manufacture of the rail is described. The blank bent during the first fabrication, and so a second one was fabricated. The blank was annealed to eliminate internal stresses before the second fabrication. Lastly, the blackening of the fabricated rail and testing its functionality is described.
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Machining of flat-shaped components on CNC machines
Fridrich, Tomáš ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with machining of flat shaped components using CNC machines. In the theoretical part, the characteristics of CNC machines, NC programming and various methods of workpiece clamping are presented. It is followed by an overview of some Czech and foreign vertical machining centres with traverses only in X, Y and Z axes. Furthermore, an analysis of suitable technological operations for the production of flat-shaped parts is made. The last theoretical chapter deals with flat-shaped components and their division. The practical part of the bachelor thesis is focused on the creation of the NC program and the production procedure of the sample product, the compilation of data into the technological preparation of the production and the evaluation of the production.
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Generate ICMPv6 and IPv6 packets for load testing using JMeter tool
Šulka, Samuel ; Člupek, Vlastimil (referee) ; Dvořák, Jan (advisor)
The Bachelor Thesis deals with flood attacks using generating of ICMPv6 packets in an environment without IPv4 protocol. A Trafgen configuration file was created, which had the task of sending ICMPv6 packets. For other attacks was used Scapy in Python. A plug-in modul for software Apache JMeter was created for each scenario. Scenarios were tested on real device and the results were documented in write and visual form.
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Music composition using artificial intelligence methods
Vendrame, Katia ; Dvořák, Jiří (referee) ; Matoušek, Radomil (advisor)
Tato studie se věnuje metodám automatické kompozice hudby (AMC), s kon- krétním zaměřením na evoluční algoritmy a neuronové sítě. Potenciální dialog mezi muzikologickými teoriemi a AMC jsou analyzovány, spolu s otázkou jejího základu v hudební tradici. Byly zkoumány tři algoritmy pro tvoření krátkých jednohlasých melodií založených na stylu daného datasetu nebo požadavcích uživatele: pravdě- podobnostní gramatická evoluce, genetické algoritmy a LSTM modely. Praktická část práce představuje aplikace těchto algoritmů a výsledky testování jejich výhod a předností. Dále je představena implementace pro analýzu MIDI datasetů z hudební perspektivy. V poslední řadě jsou představeny možnosti budoucího vylepšení a roz- šiření zkoumaných algoritmů v oblasti automatické hudební analýzy a kompozice.
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Spring reverb
Hroch, Matěj ; Dvořák, Jan (referee) ; Kubánek, David (advisor)
Bachelor thesis deals with design of analog reverb effect. Specifically, it deals with effect, where the reverbation is simulated by spring reverb tank. Thesis contains design of excitating and sensing circuits, also impedance and transmission features measuring. Final device should be compatible with common used audio devices. Reverb design is improved by adding noise gate and feedback. The thesis contains desingn of PCB and whole device construction. Features measuring is also contained. For retro design, VU meters circuits are added. The thesis contains already known circuits, which were tested and improved.
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Virtual commissioning of the robotic clock
Dvořák, Jan ; Tůma, Zdeněk (referee) ; Štěpánek, Vojtěch (advisor)
Anna Barcuchová The aim of this thesis is virtual commissioning of a digital twin of a manipulator working as a robotic clock. The thesis contains a research of PLC control systems with a focus on motion control, conceptual design of three versions of the solution of the task, flowcharts of the control algorithm and description of the creation of the digital twin in NX Mechatronics Concept Designer. For the final version of the solution, calculations were made for determining the maximum angular acceleration of the individual robotic arms. Included in the thesis is also a control program for TwinCAT 3.
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Production of pulley for micro-belts at SPN 12CNC/Sinumerik 810D
Juránek, Martin ; Dvořák, Jaromír (referee) ; Píška, Miroslav (advisor)
As the tittle itself suggests, this thesis deals with the production of two two poly-V pulleys on the lathe SPN 12 CNC. In the first chapter, the thesis mentions transmissions and its types. Furthermore, the main advantages of poly-V pulleys compared to classic V-pulleys are outlined here. There is also geometry and calculation relationships of power ratios in a simple belt transmission. The practical part suggests several methods of creating a possible CNC program for the production of the grooves themselves. The practical part suggests several methods of creating a possible CNC program for the production of the grooves themselves. Among the possible methods, the contour creation method using incremental programming is used, and 6 grooves are created using the FOR counting loop. The work is also supplemented about the methodology for measuring the functional dimensions of the grooves, and there is also the measurement of the parameters of the insert with which the grooves were made.
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