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Steel structure for the the stationary hydraulic unit
Petr, Tomáš ; Pokorný, Jan (referee) ; Pokorný, Přemysl (advisor)
The main theme of this diploma thesis is a description and a strength analysis of several steel structures of valve frames used by Bosch Rexroth, s. r. o. The first part sums up possibilities of fastening of hydraulic control elements. Furthermore, current types of valve frames were described. The strength analysis of three steel structures was output of using the finite elements method. The result of these analysis was the determination of the loads and critical points of individual structures. In the end of this study, new structures for one block frame were designed to modify the critical locations of the original solution.
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Analysis of carriage of Top Drive of drilling tower
Kříž, Jakub ; Kubín, Martin (referee) ; Pokorný, Přemysl (advisor)
The subject of this diploma thesis is determination of the cause of crack formation at the carriage Top drive for MND Drilling & Services company. The aim of the diploma thesis is to analyze the load states of the component. Furthermore, the aim is to create a computational model and boundary conditions and to create suggestions of improvements leading to the elimination of cracks. And finally, to evaluate the results of construction improvements..
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Wheel-mounted gantry crane
Hlobil, Jaroslav ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
The aim of the present bachelor's thesis is a structural proposed design of a cantilevered frame, and also the structural proposed design of a wheel-mounted gantry crane, wheel-mounted gantry crane which is earmarked for a manipulation with containers on the containers' terminal surface. Additionally, the thesis deals with the proposed design of the prime load-bearing crane's components and with its strength analysis. Eventually, it also shows the mentioned proposed design with essential operational calculations, and the most important part devoted to the drawings' documentation.
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Pendulum jaw crusher 700 x 300
Kopecký, Libor ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma thesis deals with construction design of a pendulum for the jaw crusher DCJ 700x300. The first part of the thesis is dedicated to treatment of mineral materials with focus on minimizing minerals. The second part deals with devices used for crushing minerals, jaw crushers and their variants in particular. The third part is devoted to specific design of the jaw crusher based on assigned input. The next part deals with construction design of the pendulum and technology of its production exploring weldments and casts. The aim of this thesis is to perform a strength analysis of the chosen version of pendulum production using the FEM method. The diploma thesis includes drawing documentation of the jaw crusher and the pendulum.
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Frame of stationary hydraulic device
Klezla, Vojtěch ; Pokorný, Jan (referee) ; Pokorný, Přemysl (advisor)
The subject of this thesis is design and strength analysis of stationary hydraulic device. Strength analysis is made by the finite element method. The thesis describes design of used frames, profiles and other components, which are parts of the frame. Frame modification is proposed, based on the results of the strength analysis. These modifications are checked with strength analysis. The thesis includes drawing of weldment. The project has been carried out in cooperation with Bosch Rexroth, spol. s. r. o.
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Control stress analysis of LVS 511 gear
Macka, Jan ; Kubín, Martin (referee) ; Pokorný, Přemysl (advisor)
This master’s thesis deals with analysis of the gearbox housing of forwarder LVS 511. Theme is designed by Strojírna Novotný s.r.o. Objective of the work is to perform strain stress analysis of gear housing and main transmission shaft. The main part of the thesis is focused on creating of finite element model and evaluation in NX I-Deas software.
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Frame of foundry trolley crane 330 t
Otevřel, Marek ; Kolář, Pavel (referee) ; Pokorný, Přemysl (advisor)
The topic of this diploma thesis is the frame of the foundry trolley crane 330/65/20t. The crane crab is used for handling with molten metal. The frame is analyzed by strength inspection and fatigue strength inspection. The process is according to ČSN EN 13001. The analyses are made by using finite element method on a beam and shell models. The diploma thesis was made in cooperation with the Královopolská a.s. company.
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Two-cylinder motorcycle engine
Bolcek, Adam ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
The main aim of this master’s thesis is balancing of the inertia forces of sliding parts of the twin cylinder motorcycle’s engine by dummy connecting rod. There is description of two computing stances to design dummy connecting rod. Then there is comparison of these computing stances. The dummy connecting rod is designed and the strength analysis is done by FEM method (finite element method) to limit the state of material fatigue. Furthermore, a crankshaft is designed while considering rotation parts’ inertia forces balancing. Finally, a strength analysis by FEM method is done to limit state of material fatigue of the crankshaft
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Personal elevator for a residential building
Moravec, Josef ; Poledna, Jan (referee) ; Pokorný, Přemysl (advisor)
Master’s thesis deals with application of new suspension means for personal elevator instead of conventional steel wire rope includes calculation of traction. Followed by assessment of passive resistance generated by guiding elevator on guide rails and caused by various locations of suspension and guiding (car guide rails). In the last part of thesis contains a strength analysis of car frame by Finite elements method (FEM) in programme NX I-deas.
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