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High loading shovel for loader
Rajdl, Marek ; Papoušek, Libor (referee) ; Kašpárek, Jaroslav (advisor)
This diploma thesis deals with design of the high loading shovel for the loader Komatsu WA380. The aim is to find constructional solutions of the high loading shovel for a minimal dumping height of 4 500 mm, for the bucket width of 3 000 mm and for the bucket volume of 5 m3. The thesis contains a brief description of the high loading shovel and description of basic constructional components. It also contains choices of basic constructional components, a calculation of the necessary force to tilt the bucket and a static analysis. Stress control of the bucket, the frame and the pegs forms the final part of the thesis. The thesis is accompanied by the necessary technical drawings.
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Stress - strain analysis of jaw with tooth implant type VNI
Školník, Roman ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This diploma thesis is dealt with stress-strain analysis of jowl with teeth implants. Teeth implants when locked in place (jowl) have the ability to replace and be used in the same way as the missing teeth. The implant creates a pillar column in the buccal cavity and then the tooth cap or bridge is secured on the pillar column. In this diploma thesis it is described as a solution of stress and strain of two types of cylindrical teeth implants VNI. Thesis specializes on the influence of deviation implant from the vertical axis. The solution is accomplished in program ANSYS Workbench by Finite Element Method (FEM). The geometric models are made in program SolidWorks 2005.
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Two-axle tractor semitrailer
Krafka, Martin ; Fajkus, Pavel (referee) ; Kašpárek, Jaroslav (advisor)
This diploma thesis deals with the design of a specialized trailer with a tandem axle for transporting commodity raw materials and materials. The introductory section of the thesis deals with defining legislative requirements and classifying the trailer into vehicle categories. The following section is dedicated to the methods of constructing individual parts of the trailer. A market survey of trailers with a tandem axle and similar nominal load capacity to the proposed trailer is conducted. The design section focuses on the trailer design with a choice of purchased trailer components. A finite element analysis of stress states is created from a shell model with replacements of structural nodes to approximate the real state of loading. The thesis also includes drawing documentation.
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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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Analysis of the use of Code_Aster in solving the limit state of fatigue strength
Busta, Michal ; Kovář, Jaroslav (referee) ; Vosynek, Petr (advisor)
This bachelor’s thesis deals with the analysis of the use of Code_Aster in the calculations of the limit state of fatigue strength. The first part is the research in fatigue analysis using the solver Code_Aster and in the second part the know-how of Code_Aster usage is used to solve three tasks of the limit state of fatigue strength. Acquired results are compared with analytical solutions and with the student licence of the numerical software Ansys Workbench 19.2. In conclusion, all the results are analysed.
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Stress - strain analysis of jaw with tooth implant type MTI
Petrlíková, Helena ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This diploma work is oriented on the deformation and load stress analysis of the jawbone with the razor-blade dental implant of the company MTI. There is a literature search on this theme in the beginning of this work. Deformation and tenseness of the system is done by computerized method FEM. There is detailed description of creating the computational model in this work. The geometry model of the system was created in the 3D CAD design software SolidWorks. Discretization, model of constrains and load sets including own solution was created in the ANSYS Workbench. On the basis of solutions with different load sets, which are presented in this work, is created a deformation and load stress analysis for two razorblade implant of copany MTI.
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Stress - strain analysis of jaw with tooth implant type VNI
Školník, Roman ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This diploma thesis is dealt with stress-strain analysis of jowl with teeth implants. Teeth implants when locked in place (jowl) have the ability to replace and be used in the same way as the missing teeth. The implant creates a pillar column in the buccal cavity and then the tooth cap or bridge is secured on the pillar column. In this diploma thesis it is described as a solution of stress and strain of two types of cylindrical teeth implants VNI. Thesis specializes on the influence of deviation implant from the vertical axis. The solution is accomplished in program ANSYS Workbench by Finite Element Method (FEM). The geometric models are made in program SolidWorks 2005.
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Hydraulic heating press with nominal force 600 kN
Tyburec, Adam ; Knoflíček, Radek (referee) ; Omes, Jiří (advisor)
This bachelor thesis contains a design of a hydraulic heating press. That includes the calculation of the press drive, the design of the hydraulic circuit, the analytical calculation of the hydraulic cylinder and the optimization of the press frame by FEM. Drawing of a press assembly, drawing of a hydraulic cylinder assembly and detailed drawings of selected components are made based on these results. At the end a simplified maintenance plan is created.
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Nerovnosti Friedrichsova a Poincarého typu a jejich výpočet
MOSKOVKA, Alexej
This thesis deals with the theory of Friedrichs' and Poincaré inequalities and their constants. They are important in mathematical analysis, functional analysis and theory of partial differential equations. The key property of them is the boundness of L-norms of functions by L-norms of gradients of functions. Constants can be derived analytically for simple geometries or approximated numerically. We provide an explicit derivation for an interval, a rectangle and a rectangular cuboid. We also perform a numerical computation for the interval and the rectangle as well as for an annulus, for which constants are unknown.
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Research study of tumorous total endoprosthesis of knee and hip joint
Věžníková, Tereza ; Florian, Zdeněk (referee) ; Marcián, Petr (advisor)
The presented bachelor’s thesis deals with tumorous total endoprosthesis of knee and hip joint. Tumorous replacement is used in patients with bone losts due to bone tumors and for these patients it means the salvage of their limb and the possibility to live full lives. This work includes the description of the developement, types and currently used replacement after bone tumors. The significiant part of patients with bone tumors are children for whom there are growing endoprosthesis containing the expandable mechanism and thanks to this the length of the limb can be regulated. In the last part of this work the stress-strain analysis of tumorous total hip endoprosthesis is performed using computational modeling.
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