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Strain stress analysis of BS splint
Řehák, Kamil ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This master‘s thesis deals with strain-stress analysis of hip joint together with the final applied total endoprosthesis with Burch-Schneider cage. The main point of my work was to find the solution of stress–strain analysis state, which has been mentioned before in connection with Burch-Schneider cage. I describe the technique of geometric creation of whole body system, component´s materials or conditions which are neccessary for calculation. In coclusion there are results achieved in variants. In the first option the case of bone tissue was considered, which don’t reach degradation mechanical properties effect straining under Burch-Schneider cage. In some cases when the bone tissue is untimely forced, the necrosis of bone tissue takes place under Burch-Schneider cage. This possibility is described in the second option of type. For every option there was a case which was calculated with applied screw or without it. In all option mechanical features of cancellous bone tissue and their change influence on achieved results were considered. This problem was solved computational simulation in commercial software Ansys Workbench 12.0.
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Analysis of mechanical behaviour of synchronous generator
Donát, Martin ; Hadaš, Zdeněk (referee) ; Dušek, Daniel (advisor)
This Master’s thesis deals with analysis of mechanical behaviour of the synchronous generator and assessment of the possibility of reducing the mass of the frame of the generator. The aims of this work were: to perform the stress-strain analysis and modal analysis of the required model of the synchronous generator, to assessment influence of single part of the frame of the generator over its stiffness and design construction modification of the frame of the generator, which reduce its mass.
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Stress - strain analysis of jaw with tooth implant
Hamerníková, Martina ; Marcián, Petr (referee) ; Florian, Zdeněk (advisor)
This diploma thesis is oriented on a stress – strain analysis of the jaw bone with a screw dental implant. There is a literature search on this theme in the beginning of this work. Solutions deformation and stress the system lower jaw and implant was performed computational modeling, by using the finite element method. Modeling is part of the lower jaw with dental implants applied screw type Ankylos, Bränemark and implant with metric thread. The thesis is described in detail development of calculation model system and solutions. To create a geometry model of geometry Solidworks 2007 was used. To create calculation model and the solution was implamented in the computer systém ANSYS 11.0 and ANSYS Workbench.
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Design and stress analysis of temperature and force sensor in hot rolling process.
Nejedlý, Pavel ; Pohanka, Michal (referee) ; Horský, Jaroslav (advisor)
In the process of hot rolling is roll surface thermo-mechanically stressed. To define lifetime of roll or to increase it by change of thermal mode, temperatures and forces acting on this roll need to be known. For this purpose should be used sensors, that are placed near by surface of roll. Aim of the first part of diploma thesis is to debug 2D computing model (MKP) to achieve the match of temperature graphs with experimentally measured values, which was recorded by temperature sensors in real process of rolling. In the second part the same temperature boundary conditions are applied on 3D model, which is used to solve mechanical strength check of the temperature sensor. The last part of thesis is design and verification of mechanical strength of the designed force sensor. The used boundary conditions were acquired in Laboratory of heat transfer and flow. The computing system ANSYS 11 is used to design a model of geometry and numerical calculation. This diploma thesis will be used as donating solution for the granted project, which started in this year with Laboratory of heat transfer and flow partnership.
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Stress - strain analysis of save premolar tooth
Sáblíková, Zdeňka ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This diploma thesis deals with stress-strain analysis of healthy and save tooth. Defor-mation and stress of tooth system with a part of jawbone was solved by calculating method, FEM in computing system ANSYS Workbench 11. Stress-strain analysis of save of tooth was performed in twenty-five ways describing various classes and sizes of cavity, filling material and model of connection between the filling and the tooth.
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Stress - strain analysis of jaw with decrease bone tissue
Krpalek, David ; Fuis, Vladimír (referee) ; Florian, Zdeněk (advisor)
This diploma thesis deals with stress - strain analysis of jaw with decrease of bone tis-sue. At first was created a model of geometry using graphic program Rhinoceros 4.0 upon acquisition by the 3D scanner. That was converted to the computational system ANSYS Workbench 11 which uses for solving the finite element method (FEM). Solving was executed with homogenous, linear and isotropic material model of bone with different characteristics for compact and cancellous bone. Forces of the three working muscles, which participate on chewing, were given on the basis of the force and moment balance mandible. Solving was executed for 12 variant simulating occlusion in places, where was earlier found teeth.
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Stress-strain analysis of winepress frame
Vaculka, Miroslav ; Fedorova, Svitlana (referee) ; Novák, Kamil (advisor)
This bachelor’s thesis deals with stress-strain analysis of winepress frame. The press is made of self help. No analysis has been performed for it yet. The thesis contains its detailed research, then basic research about other winepresses and research in the Mechanics of Materials. A computational model was set and stress-strain analysis was done in an analytical approach and numerical approach using the program ANSYS. Everything was evaluated in the discussion of the results, including the achievement of the safety factor to limit the state of elasticity. A system approach was used in the entire bachelor’s thesis.
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Stress, deformation and safety analysis of the tandem bicycle frame
Profota, Martin ; Dobeš, Martin (referee) ; Vrbka, Jan (advisor)
Purpose of this work was the evaluation safety and pliancy of the frame structure tandem bicycle using method of basic elasticity with the help of the deformation and stress analysis. After introduction material and geometry of the frame tandem bicycle introductory part is focused on theoretical basis of calculation like beam assumptions, definition the beam, limit states, Sentence of Castigliano and Saint Venant's Principle. Before commencement actual analytical solution the spatial task was transferred to plane task and used model was simplified. Calculation related to two load states differing by way of load of frame tandem bicycle. For each load modes comparison with numerical solution by FEM was enabled. Mathematical software like Mathcad 14 and Maple 13 were used to analytical calculation. Check was performed by numerical solution in program ANSYS Workbench 14.5.
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Stress-strain analysis of axisymmetric body solved by analytical and numerical approaches
Mívalt, Tomáš ; Petruška, Jindřich (referee) ; Novák, Kamil (advisor)
The bachelor’s thesis deals with stress-strain analysis of axisymmetric body. As suitable axisymmetric body was chosen combustion engine piston. Thesis includes study of piston loads and possibilities of stress-strain calculations. This is followed by research in field of historical approaches of stress-strain calculations and tension evaluating and classification. In the practical part of thesis, analytical solution was solved with different computational models – fixed plate, supported plate and composite body – composed of shell and plate. After solving analytical models, numerical approach took place; FEM with different resolutions was used in ANSYS system. In conclusion of the thesis, all data and result were compared and appropriate conclusions were made.
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Stress-strain analysis of the solids with highly curved centerline
Peter, Ondřej ; Man, Vojtěch (referee) ; Novák, Kamil (advisor)
The bachelor thesis deals with stress-strain analysis of the solid with highly curved centerline. The thesis is divided into three main parts: background research, computation modelling and performing of the experiment. All analytical equations and practical examples were summarized in the first part of this thesis. In second part, computation model is solved by using analytical and numerical approach. Next, the analytical and numerical approaches are compared to each other. Third part deals with experiment.
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