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Manufacturing of a Coupling Body
Dostál, Martin ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
The thesis deals with the design of the production of the clutch body. The production company is Zetor Kovárna s.r.o. It is a slightly more complex component used in the automotive industry. The production run is 80,000 pieces per year. The material for production is lowcarbon steel 12 020. Of all the evaluated production technologies, production by hot die forging is chosen. A suitable shape of the forging is also designed for it. The input blank is a rod with a diameter of 100 mm and a height of 201 mm. The proposal also deals with the cutting and preheating of the input blank. Die forging is designed in three steps. The selected forging force for the last operation is 30.7 MN. The proposed production press is the LZK 4,000. The LKOA 200 press is selected for finishing cutting operations.
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Rationalization of production technology body
Dostál, Martin ; Chladil, Josef (referee) ; Osička, Karel (advisor)
In the introductory part of the thesis, there is a description of machining technologies used in the production of body. This is followed by a detailed analyse of the current technology of production of this component with an emphasis on finding its problematic parts, including a proposal of the options of the rationalization. After the methods of rationalization assesment, a new technological process was developed and the alternative tools were proposed. Considerable time and money savings were achieved by this rationalization. In the discussion section, there were designed some options of solving problems arising during the installation of this rationalization into working.
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Chess Program with Various Chess Variations with New Figure
Dostál, Martin ; Křena, Bohuslav (referee) ; Rozman, Jaroslav (advisor)
This thesis deals with an analysis and evaluation of methods and algorithms needed for successfull implementation of a chess program. Both the basic principles and further currently used extensions of these methods and algorithms are stated with a goal to implement a quality chess program playing different chess variations including a new figure. This thesis also introduces the basic pillars of every chess program - these pillars include board representation, state space search, evaluation of a game state and changes required for implementation of new chess variations. A comparison of difficulties of individual methods is included for an overview.
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Barrel handling equipment
Dostál, Martin ; Pokorný, Přemysl (referee) ; Hloušek, David (advisor)
The primary content of this work is a conceptual design of a manipulative device for tin barrels, with its characteristic parameters. The model design was completed in accordance with the gathered information from the critical research of comparable devices available on the market. Ultimately, the model concept is focused on improving the market devices’ deficiencies. The manipulative device model was composed in Autodesk Inventor 2018 application and subsequently subdued to testing calculations. The entire model construction is chiefly welded. Therefore, the majority of the calculations is concerned with the solidity control of the welds.
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The Code
Pavlacký, Tomáš ; Dostál, Martin (referee) ; Gabriel, Michal (advisor)
A series of four sculptures, which stemmed from the glitchových approaches in the creation of a 3D program. The work is based on a 3D vyzualitě glitches (as a transmission error information). As an essential element for deformation were used small sculptures that have been scanned.
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Hiding Moving Objects in Video Sequences
Dostál, Martin ; Zahrádka, Jiří (referee) ; Španěl, Michal (advisor)
Hiding moving objects in video sequences is an interesting topic in computer vision. In this thesis, a real-time single object tracking and removal method is proposed. An input video is assumed to be captured with static video camera. Motion detection is based on a background subtraction using Mixture of Gaussians as the representation of background. The object tracking is realized by a combination of blobs comparison and computation of optical flow using Lucas-Kanade method. Consequent object removal makes use of created background model.
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City Traffic Simulator
Dostál, Martin ; Dalecký, Štěpán (referee) ; Rozman, Jaroslav (advisor)
This thesis is focused on microsimulation of city traffic, specifically a small city circuit in Brno. The thesis describes approaches for solving the problem of road network representation and presents basic methods and models needed for traffic simulation on the level of individual vehicles control as well as on the level of simulator control. In the case of more possible solutions to the given problem, the features and suitability of these solutions are compared. In the practical part of the thesis, the structure of the proposed simulator is presented with all the dependencies among individual submodels, along with the description of implementation details related to the individual parts.
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Dimensioning of Overhead Line Conductors According to ČSN EN 50341 and ČSN EN 50423
Dostál, Martin ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
Overhead line must be designed to be able to resist variety of influences. These influences are mechanical, which are caused by wind and rime during the normal conditions and electrical influences. Therefore all parts of overhead line have to be designed and built to withstand mechanical and electrical stress. This bachelor’s thesis is focused mainly on electrical parameters of overhead line, climatic stress and calculation of mechanical stress during limit states. There are described formulas and steps of calculation of line straining MV and HV and there are also described examples of calculation in detail.
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Manufacturing of ignition cover pad
Dostál, Martin ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
The thesis solves the design of the technology of production of the ignition cover pad made of steel 11 321 with a thickness of 1 mm with zinc surface treatment. It serves as part of the motorcycle engine sealing system. The part is rotating in shape with a diameter of 35 mm and consists of a central extrusion and a hole. The size of the series is 25,000 pieces per year. Production by a progressive compound tool from a coil with dimensions of 1200 x 500 mm is chosen. 3 forming operations with eating between steps are selected, which are implemented by cutting and embossing technologies. The necessary forming work of 476 kJ and the force of 267 kN are determined, according to which the PRESSIX CNV4 eccentric press is chosen. The machine is introduced into the automated Shungdar SJD and SJK production line, which consists of a straightener, unwinder and feeder.
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