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Reinforced concrete frame construction
Hons, Filip ; Hasala, Ivo (referee) ; Šulák, Pavel (advisor)
Master´s thesis focuses on the design of monolithic reinforced concrete structures storey hose which consist of 2 underground and 6 floors. This project deals whit two different boards, board over ground floor and over second floor, as well as three pillars supporting board, separate staircase placed in a reinforced core, base plate. All calculations are done according to applicable standards, mainly according to ČSN EN 1992-1-1.
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Stability analysis of slender high-rise strucutres
Nevřalová, Jana ; Vlk,, Zbyněk (referee) ; Nevařil, Aleš (advisor)
The work focuses on static analysis of simplified models and their mutual comparison of selected high-rise building. Attention is paid to the differences in the geometry of each model and the influence of model dimension (bar or planar or spatial) of individual building parts. For selected high-rise construction are finally assembled four finite element models. It is examined the issue of stability of slender high-rise building and compared the differences between the results of simplified models.
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Mathematical-physical analysis of climatic chamber
Repko, Ilia ; Bílek, Michal (referee) ; Maxa, Jiří (advisor)
This work deals with the mathematical and physical analysis of the climatic chambers. The theoretical part describes the issue of climatic chambers, software SolidWorks and ANSYS Fluent, basic equations describing fluid status and fluid turbulence. The practical part of the thesis is to create the model of climatic chamber in CAD system SolidWorks and simulation of flow and and temperature distribution by ANSYS Fluent. At the end of the work the results are analyzed and evaluated.
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Cooling of electric machines
Benčo, Branislav ; Mach, Martin (referee) ; Janda, Marcel (advisor)
The bachelor thesis is focused to the calculation of cooling of electrical machines by various methods and their subsequent comparison. This work is divided into several chapters in which the methods are described including when and in which cases is suitable for calculation.
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Verification of the Exploitation Possibility of Tensile Strain during the Hopkinson´s Test
Dohnal, Ivo ; Spišák,, Emil (referee) ; Buchar, Jaroslav (referee) ; Forejt, Milan (advisor)
The PhD thesis deals with the possibility of performing dynamic tensile tests. For this purpose, Split Hopkinson Pressure Bar Test (hereinafter SHPBT) is used. The basic construction of SHPBT device is designed to perform dynamic compression tests on materials (metals, plastics, and ceramics). The obtained results are deformation stress – strain and strain rate – strain dependences. SHPBT is capable of testing materials at high strain rates up to 10^2 – 10^3 s-1. It was created a special device for dynamic tensile tests of materials at high strain rates. The created device uses the basic construction of SHPBT. The special device is used for testing flat specimens with 2 mm thickness. It was recognized by the Industrial Property Office of the Czech Republic as a utility model with number 23703. The specimens used for dynamic tensile testing were made of austenitic stainless steel (WNr. 1.4301) with 2 mm thickness. The verification of created device was carried out by numerical simulation. The numerical simulation was performed by ANSYS LS – Dyna software.
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Design of the field transfer trailer
Pokorný, Emil ; Molva, Martin (referee) ; Pokorný, Přemysl (advisor)
The aim of the diploma thesis is the structural design of the field transfer trailer designed for harvesting work in agriculture. The first part of the thesis contains an overview of similar construction solutions and a summary of legislative requirements related to the device. In the next part is performed a description of the individual structural units, the design of the drive and the design of the screw conveyors. Based on the stated load conditions, the strength analysis of the large – volume hopper is processed, which is evaluated in the final part. An integral part of the thesis is also a partial drawing documentation. This diploma thesis was created in cooperation with the company ZDT Nové Veselí.
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Computational analysis of leveling of square cross section rods
Šebek, František ; Návrat, Tomáš (referee) ; Petruška, Jindřich (advisor)
Current requirements in mechanical engineering require more accurate operations and more efficient technologies. The aim of this thesis is the analysis of the leveling of square rods. The main problem is the setting of the leveling machine for the specified material and geometric data so that the initially curved material, which passes through alternatively positioned offset rollers, is leveled as much as possible. The main factor in the leveling process is the plastification of the material used for the redistribution of the residual stress. Based on existing theo-retical knowledge in this field, programs are set up to simulate the passing of the rod through the leveling machine. Further, modifications leading to the improvement of the whole process are presented. Finally, there is a verification of the results which is made independently of the submitted solution and processed by the finite element method.
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Design of Conveyor Semi-Trailer
Nepovím, Ondřej ; Kovář, Stanislav (referee) ; Pokorný, Přemysl (advisor)
The first part of the thesis focuses on a research study of high-strength steels. The thesis also includes a conceptual design of the supporting structure of a transshipment trailer, which uses high-strength materials. This design is compatible with the Herkul trailer produced by the company NovaSteel s. r. o. and distributed by the sales network of Romill Brno, spol. s r.o. In its final part, the thesis deals with a stress analysis of the proposed design of the transshipment trailer. Stress-strength and deformation tests were carried out by means of the finite element method.
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