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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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Design of Universal Equipment for Tire Cutting
Kohoutek, Petr ; Veselý, Oldřich (referee) ; Prokeš, František (advisor)
The main content of of this thesis is a construction design and analysis of a machine for cutting tires. The resulting solution emerges from the design options and the option that meets the best selection criteria is chosen. Then the thesis stops for a while at the choice of cutting technology and tries to exemine its suitability for cutting tires. In its other part there is an attempt to clarify the relevant parts of the machine, where the benefits of three-dimensional views is used. Basic design and check calculations are done in the selected machine parts.
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Study of construction machinery for the type of chassis
Válek, Adam ; Kašpárek, Jaroslav (referee) ; Kubín, Martin (advisor)
The point of the Bachelor´s thesis is to present a complex study of chassis of construction machinery. In the chapters, deals with general assessment criterion of these chassis, contains list of most used types of undercarriages of construction machines and assesses their advantages, disadvantages and usability. The thesis also contains a treatise of selected less common types and assesses interaction between the type of undercarriage and traversing surface.
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Solution technology of adjustable V-belt pulley
Láznička, Pavel ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
At the beginning, the thesis contains description of belt drives and balancing of an adjustable belt pulley. The topic of the next chapter is concerned with the evaluation of technological aspects of unit and series production. It is followed by a choice of material, a semi-finished product and a calculation of material consumption. A technological procedure with selection of machine tools and selection of suitable method of production with calculations of a producing time are described afterwards. At the end, the ecological aspects are assessed. The conclusion comprises technological and economic evaluation of production.
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Production of a Component "Disc"
Kačírek, David ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
The present bachelor thesis deals with a proposal for production of the component "disk" in two variants in conditions of a smaller company. A part of this work is to design the stock component, to select a machine out of those available in the company, and to select the appropriate tools and cutting conditions. For both variants, tools paths were simulated in the program HSMWorks and machining times were compared. The proposed optimal solution will serve as a basis for real production.
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The study of the behavior of track chassis using dynamic simulation
Kukla, Lukáš ; Kašpárek, Jaroslav (referee) ; Jonák, Martin (advisor)
Objectives of the thesis is to develop research summarizing knowledge about the types of tracked undercarriages for existing mobile machines. Developing critical analysis of the various designs of track undercarriages with regard to their use - forest terrain, unpaved surface. Creating a basic structural design of one of the selected type of belt chassis suitable for use in the field. Verification by the design using dynamic simulation.
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Mobile Cranes Models Review
Škaloud, Martin ; Škopán, Miroslav (referee) ; Pokorný, Přemysl (advisor)
The thesis deals with mobile cranes with a lifting capacity of 50 tonnes. The introduction describes the basic concepts related to these machines. Followed by a general cranes overview. This thesis focuses on a brief description of wheeled and tracked mobile cranes. It describes the undercarriage of the wheeled cranes and undercarriage of the tracked crane and crawler crane with it’s basic elements. After that is described the structure of the upper rotating wheel and track mobile truck crane. In the overview are specified the current global producers and companies that already do not produce these machines. Follows the short overview about companies - Grove, Liebherr, Manitowoc, Tadano, Terex-Demag and CKD. In the next part are written more details about company Grove interesting systems which are used in theirs products. At the end of this work are given a table showing the mobile crane on a brand-wheeled chassis with a capacity of over 50 the summary table with belt manufacturers of mobile cranes with a lifting capacity exceeding 50 tonnes.
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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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1. Reconstruction of the vocational school Dubňany. Construction Technology Preparation
Dohnálek, Marek ; Hrůza,, Jaroslav (referee) ; Kovářová, Barbora (advisor)
The subject of this technological preparation of construction is to find out scope of work needed for reconstruction of former miners school in Dubňany.In Czech Republic exits plenty of these abandoned places and this master thesis should serve as an example of reconstruction of some theirs parts.Within this project I would like to valorize the experience gained from excursion to foreign countries, where the passive and low-energetic buildings are common.Missing project documentation of some part of this facility was replaced by 3D modelling based on my own laser measurement.The main object SO 01 has been already rebuilt into passive apartment building but without building-technological study and proper project documentation.Due to missing foundations and confidential internal documentation of the construction company is impossible to compare the real material, human and financial resources with those mentioned within this thesis. The master thesis contains technical report for the building-technological project, coordination of the transport routes, chronological and financial plan, realisation of the main technological steps, equipment of the construction project , draft of machinery, time schedule of the main project, plan of getting the needful resources, technological regulations, control and probationary plans, disposal of asbestos reports, owning contract, two roof decks comparison from the point of view of thermal technology and specialization from the building field.
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