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Steel lookout tower
Kábrt, Michal ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The aim of the diploma thesis was to make a structural design of steel-load-carrying structure of steel lookout tower, in the grounds of domestic brewery in Humpolec. Lookout tower will be part of newly built centre for customers of the brewery. The layout and shape of the load-carrying structure of steel lookout tower follow the brewery chimney with height of 32.7 m with circular ground plan and outside diameter of 3.5 m in the heel and 2.3 m at the top. The chimney is independent of the construction of the lookout tower. The ground plan and dimensions of the lookout tower were considered taking into account the required spacing of the structure from adjacent buildings and ensuring sufficient dimensions for the required passage between the future lookout tower and the existing building of the boiler room. RFEM was used for calculation internal forces and assessment on individual structural elements, according to the valid Eurocodes.
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Computational Modelling of Welded Joints
Schiffer, Adam ; Řehák, Kamil (referee) ; Dlugoš, Jozef (advisor)
Welded joint is nowadays a very widespread method of joining materials. Welded joints are produced by very complex technological processes, and therefore it is necessary to assess their behavior. Currently, a large number of FEM software products has been developed, offering better efficiency in the design of welded joints. This work contains a summary of selected software and their methodologies in computational modelling of welded joints. In addition to the description of individual software, it also contains their comparison on the basis of set criteria. The possibility of including phase transformations in the analysis of the welding process was chosen as the main criterion. A survey of the availability of student licenses was also carried out.
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Fatigue strength of welded joints
Čermáková, Markéta ; Dubnický, Lukáš (referee) ; Sladký, Martin (advisor)
The assessment of the fatigue life of welded joints is a very complex discipline requiring careful analysis. In practice, expensive testing of large numbers of samples is often required to assess it. Although some recent advances have been made in analytical prediction, the results are still not satisfactory. This bachelor thesis deals with the assessment of fatigue life of welded joints using the finite element method (FEM). The first part of the thesis is devoted to a literature search, the introductory part of which gives a brief overview on the topics of welding and fatigue. Then, the paper describes in detail the different procedures to assess the fatigue life of welded joints. The second part is devoted to the development of a simple FEM model of the welded joint. The model is then used to estimate the fatigue life using the MSC Patran/Nastran program. Three approaches are tested, namely nominal, hotspot and notch stress. The final section compares the different approaches and a comparison between theoretical and experimentally observed data is also made.
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Design of a portable machine for machining large diameter pipes
Boháč, Josef ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
This diploma thesis deals with the design of a portable machine for machining large diameter pipes. This thesis is divided into research, calculation, design, and construction parts. The introductory part is devoted to research in the field of joining large diameter pipes, with a focus on flanged and welded joints. Based on the findings from the research part, several construction solutions were considered. In the next part, the most suitable design solution was selected using a multicriteria analysis technique and subsequently elaborated on in detail. The following chapter deals with the calculation of maximal cutting forces and the selection of motor. An air motor was chosen as the most suitable option for the proposed machine. This part is followed by the computational part, which includes strength calculations for the critical parts of the machine. The final part of the thesis is devoted to the construction itself and the description of the individual construction nodes of the machine. The thesis also includes a 3D model, drawings of selected parts, and an assembly drawing.
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Computational Modelling of Welded Joints
Schiffer, Adam ; Řehák, Kamil (referee) ; Dlugoš, Jozef (advisor)
Welded joint is nowadays a very widespread method of joining materials. Welded joints are produced by very complex technological processes, and therefore it is necessary to assess their behavior. Currently, a large number of FEM software products has been developed, offering better efficiency in the design of welded joints. This work contains a summary of selected software and their methodologies in computational modelling of welded joints. In addition to the description of individual software, it also contains their comparison on the basis of set criteria. The possibility of including phase transformations in the analysis of the welding process was chosen as the main criterion. A survey of the availability of student licenses was also carried out.
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Analysis of welded joints after fatigue tests
Kučera, Ondřej ; Doubrava, Marek (referee) ; Havlík, Petr (advisor)
This bachelor thesis deals with analysis of welded joints after fatigue tests . The first part of this thesis, literary research, discusses weldability of carbon steels and low-alloy steels and effect of chemical composition on weldability of materials. Further there are zones of welded joints, their microstructure and mechanisms applied described in this thesis. There are defects occurring in welded joints and their common causes and remedies described in the part of literary research dealing with defects. And the final part of the literary research deals with material fatigue, fatigue of welded joints and effect of defects, fusion zone and heat-affected zone on the fatigue of welded joints. In the experimetal part of bachelor thesis there is described experimental material, results obtain process and discussion of results.
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Multi-purpose sports building
Šandor, Peter ; Štrba, Michal (referee) ; Pilgr, Milan (advisor)
The goal of my thesis is the design of a multipurpose sport hall in Litoměřice locality made in two separate variants. Objects ground plan dimensions are 38x38 meters and the height of the object is 16 meters. Used material is S235 steel and C20/25 concrete. The periphery and roof casing of the object is realized from sandwich panels. The carrying construction of the object is made from cross truss, oblong truss and from pillars. Thesis consists of assessing the carrying elements of the construction, selected details and drawing documentation.
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Watchtower in Brno Kohoutovice
Komárek, Ondřej ; Bajer, Miroslav (referee) ; Barnat, Jan (advisor)
The main aim of my master´s thesis was to design a load-bearing steel structure of the lookout tower situated in Brno-Kohoutovice. The height of the load-bearing structure is 35.5 m. My design comprises two different engineering solutions. Solution A is a lattice space frame whereas Solution B works with continuous columns with vertical bracing. For further development, Solution A has been chosen. The proposed structural material is the S355 steel. My thesis includes an engineering report, a statics analysis and drawing documentation.
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Building of Centre of Livestock Production
Vidová, Miriama ; Barnat, Jan (referee) ; Pilgr, Milan (advisor)
My diploma theisis is focused on design and assessment of structural systém of industrial building in tended for livestock farming. The design is processed in two options. Both oft hem has the same dimensions but cross sections of the supporting elements are changed. Floor plan of the first part is a rectangular shape, dimension is 29,28 m x 24,8 m. Floor plan of the second part is a rectangular shape, dimension is 161,18 m x 46,8 m. Slope of saddle roof is 18°.
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Steel lookout tower
Kábrt, Michal ; Melcher, Jindřich (referee) ; Karmazínová, Marcela (advisor)
The aim of the diploma thesis was to make a structural design of steel-load-carrying structure of steel lookout tower, in the grounds of domestic brewery in Humpolec. Lookout tower will be part of newly built centre for customers of the brewery. The layout and shape of the load-carrying structure of steel lookout tower follow the brewery chimney with height of 32.7 m with circular ground plan and outside diameter of 3.5 m in the heel and 2.3 m at the top. The chimney is independent of the construction of the lookout tower. The ground plan and dimensions of the lookout tower were considered taking into account the required spacing of the structure from adjacent buildings and ensuring sufficient dimensions for the required passage between the future lookout tower and the existing building of the boiler room. RFEM was used for calculation internal forces and assessment on individual structural elements, according to the valid Eurocodes.
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