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Simulation of rolling operation using explicit FEM
Bezrouková, Martina ; Zemčík, Oskar (referee) ; Zouhar, Jan (advisor)
The purpose of this work is to introduce explicit finite element method (FEM) and to familiarize with commercial software tools witch are capable to perform simulations. The technological conditions and the scope of application of roller burnishing are described in subsequent part. The simulation model of roller burnishing was created. Software ANSYS LS-DYNA was used to make computations. The results of simulation and technical and economical benefits of roller burnishing are presented in the conclusion.
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Projection advanced production technology of shearing tool.
Vejrek, Tomáš ; Janský, Milan (referee) ; Janský, Milan (referee) ; Zemčík, Oskar (advisor)
Proposal progressive technology of production shearing tools. Description shearing tools and shear of the process, analysis current technology production shearing tools. Proposition two variant technology production given to dies method conventional and unconventional, elaboration technological progress and programmes on choice NC machinery, their comparison and technical economic evaluation in fine with recommendation for usage practically.
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Classification of asynchronous motors
Čala, Václav ; Dušek, Jiří (referee) ; Singule, Vladislav (advisor)
This diploma thesis deals with a creation of a “Classification Document” of asynchronous motors with a short-circuit armature with axial heights of 355, 400, 450, 500, and 560 mm. Furthermore, it is concerned with a creation of an integral design documentation for the production and assembly of these motors at the company TES VSETÍN, s.r.o. By writing this diploma thesis I would like to achieve a simplification of communication with the customers during the processing of asynchronous motors orders and to speed up the processing of asynchronous motors orders not only in the design department but also the complete technologic preparation of the production which will surely be provided by this integrated documentation.
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Filament Winding Machine
Dorňák, Michal ; Hampl,, Štěpán (referee) ; Foller, Bronislav (advisor)
The aim of this diploma thesis is the proposal of solution of three-axial winding machine for winding technology of rotary profile. Winding materials are continual springs of carbon, aramid or glass fibre impregnated by resin. The main construction change of the machine compared to commercial available solutions is the use of linear motor as a frame element instead of roller screws or toothed chain. Linear motors have higher dynamics of the movement and they can reach higher speed compared to other solutions, which guarantee increase of the machine productivity. The main importance is put not only on the functionality but also on the low price of this solution. The 3D model of the mechanism is created in the program Inventor 2009.
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Technological aspects of machining accuracy
Dlouhý, Michal ; Sedlák, Josef (referee) ; Prokop, Jaroslav (advisor)
This master‘s thesis is concerned by accuracy cutting of the process. The aim of this graduation theses is to describe metodology quantification of the parameters accuracy of cutting process and to check it. Firstly, there are the parameters accuracy of cutting process identified. Secondary, there are particular technological influences over accuracy of shaping process characterized. In the conclusion, there are characteristics accuracy of shaping process quantified and tested in practice.
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Design of public health scan
Horáková, Veronika ; Buganská, Tamara (referee) ; Křenek, Ladislav (advisor)
As a main in this project is the shape. The feature component for completely creation look was the conception of the base part of the machine with buit-in computer unit. I was get along from the base conception to the design partial fragments of the machine and associate complex look of ultrasound. The function of the machine is relatively difficult and analysis of it is complicated in time. That is why I am introducing only evolution of design and ergonomy. The aspire was to approach medical diagnostic machines to patients and raise the positive thinking to them. The colour alternation is choose with the respect to psyche of examine human at the same time.
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Sales and service center Prague - the building technological project
Trhlík, Lukáš ; Kotek, Lukáš (referee) ; Biely, Boris (advisor)
In this diploma thesis deals with execution of ground works, foundation constructions, steel and armored concrete monolithic framework of the sales and service center in Prague. Establishment of the building will be done on armored concrete basement feet, strips and basement plate. The building is desinged in part as a steel framework and in part as a armored concrete framework. The building technological project contains for the phases primarily time and financial plan of object, technology prescription, time schedule, budget, model of the building site accessories, model of the machines, check and test plan, safety plan.
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Capacity extension of nursery school Slavkov u Brna - construction technology project
Durčák, Petr ; Navrátil, Karel (referee) ; Biely, Boris (advisor)
The object of diploma thesis is a construction technology project capacity extension of nursery school Zvidalek in Slavkov u Brna. Work includes facilities of building site, technological rule of waterproofing, schedule, item budget, plan of checks and tests, design of machinery, safety and health at work and economic, time and transport evaluation of two versions of ceiling construction.
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Design of high-speed induction motor
Svoreň, Jan ; Ondrůšek, Čestmír (referee) ; Vítek, Ondřej (advisor)
This work deal with troubleshooting of problem parts of high-speed induction machines. Introduction is about conception of induction machines with reference to construction specialities due to high rpm and because machines are fed by inverter. Next part is focused to design problems. A classical induction machine was measured to determination change of various losses in classic and high-speed induction machines. The computation of laboratory sample high-speed motor was specified for calculation of effective resistance and leakage reactance of solid-steel rotor with copper layer. The results of numerical calculation were validated by using finite elements method and machine design was adjusted for improving operation characteristic.
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The electronic commutation motor
Bláha, Martin ; Huzlík, Rostislav (referee) ; Melichar, Petr (advisor)
This work discusses about nowadays problematic of the electronic comutation motors.This work also describes the opportunity of electronic control of these motors. The result of this work is realization of electronic control circuit from discreet components. There also are mentioned is proposal of electronic control board from SMD components. This control board include temperature control with ventilator switching , commutation logic, PWM speed control. In the last part of this paper are results of evaluation measurements of EC motor.
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