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A proposal and manufacturing of temporary dental restoration
Jiroušek, Jan ; Sliwková, Petra (referee) ; Sedlák, Josef (advisor)
This bachelor thesis deals with manufacturing of temporary dental restoration. Theoretical part contains an overview of types of dental restorations and their division, Furthermore it states important properties and division of the dental materials used nowadays. The next point of theoretical part is an overview of the technologies of dental restorations manufacturing used at present. Practical part is aimed at manufacturing of temporary dental restoration by using the digitization by intraoral scanning, design of restoration in CAD software and CAD/CAM manufacturing. The thesis is concluded with discussion comprising a summary and evaluation of the results of single steps from practical part.
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Stress-strain analysis of mandible with applied fixator due to the missing bone tissue
Fňukal, Jan ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
This thesis deals with the fixation of lower jaw with bone tissue defect using commercially produced fixator. Large defects of bone tissue are mainly caused due to the removal of bone tissue affected by tumor. These topics have been researched on the basis of the literature. Subsequently, stress strain analysis of the lower jaw with the applied fixation plate was performed. This analysis was solved by using computational modeling with variational approach, ie the finite element method. The work also describes in detail the procedure of creating model of geometry, model of material, model of boundary conditions and loads with subsequent solution of several computational models. The stress strain analysis was done for lower jaw with varying size of the removed bone tissue with applied reconstruction plate made of CP-Ti Grade 4 and for the lower jaw with the plate, which is made of -Ti-Mo. Finally, the influence of the mechanical properties of the callus during formation of new bone tissue (callus healing) on the stress and deformation of the solved system was evaluated.
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Architecture, Geometry and Computers
Foretník, Jan ; Prof.Ing.arch.Jilián Keppl,CSc. (referee) ; Gürtler, Ivan (referee) ; Petříčková, Monika (referee) ; Ryšavá, Hana (advisor)
The topic of this thesis is geometry, its practical usage in architect’s profession (especially its application in computer design and realization of buildings) and its current way of teaching at schools of architecture. The thesis systematically describes geometric objects’ construction and properties, its modelling in CAD systems and examples of its usage in architecture, in some cases including the way of its realization. Geometric objects are systematically organized into chapters about point, curves, surfaces and solids. The outcome of the thesis is a concept of geometry courses modification in the way that they encourage the spatial imagination development instead of “drill” and the gained knowledge is directly useful in architect’s profession. A supplementary research (in appendix) analyses the state-of-the-art of teaching of geometry at selected schools of architecture in Europe and its effect to spatial imagination development. The research was focused at contents and form of the selected geometry courses and its influence to spatial imagination.
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CAD design of the Walther PPS M2 laser sight housing
Macků, Veronika ; Hejtmánek, Petr (referee) ; Vančura, Jan (advisor)
The aim of this thesis is to create a housing for a laser-sight for a Walther PPS M2 pistol with the aid of reverse engineering methods. The first part is a research about laser-sights. The second part contains contemplation about the problem, mainly the restrictions brought on by the design of the Walther pistol and of the energy source of laser-sight Streamlight TLR-6, as well as the chosen production method of the housing, which is 3D printing. The main part describes the acquirement of input data via scanning the body of the Walther pistol and the housing of TLR-6, the making of the CAD design of the housing, the printing of a prototype with a 3D printer and the consequent correction of the CAD model on the basis of analysis of the prototype.
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Stress-Strain Analysis of Mandible with Fixator
Semerák, Jaroslav ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
This diploma thesis deals with fixation of the lower jaw fractures using commercially produced fixators. The topic was researched on the basis of the available literature. The thesis also indicates basic anatomy of the surveyed area and nowadays the most commonly used materials. Subsequently, the stress-strain analysis of the lower jaw with the applied angular stable fixation plate was performed. The solution was performed for the lower jaw with a fracture in the area of the condyle with different types of fixation plates made of CP-Ti Grade 4. In addition, the strain analysis of the healed lower jaw with the fixators after the defect in the area of chin and angle was performed. The mechanical interaction analysis of the lower jaw with defect and applied fixation plate was solved by using computational modeling with variational approach, in use of the finite element method in Ansys Workbench 18.1. The thesis also describes in detail the creation of a computational model of the system and the subsequent solution.
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Simulation of component assembly in virtual reality
Škubal, Karel ; Lacko, Branislav (referee) ; Hůlka, Tomáš (advisor)
Virtual reality is created by tricking the brain by displaying a single scene on a two-dimensional plane, generating an image from a slightly shifted perspective for each eye. This creates the illusion of a three-dimensional space, with which, by the help of suitable software, it is also possible to simulate interactions with virtual objects. Possible interactions between objects include their assembly, from simple stacking of cubes on top of each other, to various linking of objects by determining link conditions. In the theoretical part of this thesis, some possibilities of working with objects in virtual reality are explained, including examples of possible uses. After that there is a comparison of some software tools for creating a virtual environment. In the practical part, the process of creating models and the conditions for their assembly is more detailed, including the specific procedure used to create a simulation of the assembly of three test computer builds with different combinations of selected components with designated restrictions.
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CAD design of the Walther PPS M2 laser sight housing
Macků, Veronika ; Hejtmánek, Petr (referee) ; Vančura, Jan (advisor)
The aim of this thesis is to create a housing for a laser-sight for a Walther PPS M2 pistol with the aid of reverse engineering methods. The first part is a research about laser-sights. The second part contains contemplation about the problem, mainly the restrictions brought on by the design of the Walther pistol and of the energy source of laser-sight Streamlight TLR-6, as well as the chosen production method of the housing, which is 3D printing. The main part describes the acquirement of input data via scanning the body of the Walther pistol and the housing of TLR-6, the making of the CAD design of the housing, the printing of a prototype with a 3D printer and the consequent correction of the CAD model on the basis of analysis of the prototype.
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A proposal and manufacturing of temporary dental restoration
Jiroušek, Jan ; Sliwková, Petra (referee) ; Sedlák, Josef (advisor)
This bachelor thesis deals with manufacturing of temporary dental restoration. Theoretical part contains an overview of types of dental restorations and their division, Furthermore it states important properties and division of the dental materials used nowadays. The next point of theoretical part is an overview of the technologies of dental restorations manufacturing used at present. Practical part is aimed at manufacturing of temporary dental restoration by using the digitization by intraoral scanning, design of restoration in CAD software and CAD/CAM manufacturing. The thesis is concluded with discussion comprising a summary and evaluation of the results of single steps from practical part.
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Stress-Strain Analysis of Mandible with Fixator
Semerák, Jaroslav ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
This diploma thesis deals with fixation of the lower jaw fractures using commercially produced fixators. The topic was researched on the basis of the available literature. The thesis also indicates basic anatomy of the surveyed area and nowadays the most commonly used materials. Subsequently, the stress-strain analysis of the lower jaw with the applied angular stable fixation plate was performed. The solution was performed for the lower jaw with a fracture in the area of the condyle with different types of fixation plates made of CP-Ti Grade 4. In addition, the strain analysis of the healed lower jaw with the fixators after the defect in the area of chin and angle was performed. The mechanical interaction analysis of the lower jaw with defect and applied fixation plate was solved by using computational modeling with variational approach, in use of the finite element method in Ansys Workbench 18.1. The thesis also describes in detail the creation of a computational model of the system and the subsequent solution.
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Stress-strain analysis of mandible with applied fixator due to the missing bone tissue
Fňukal, Jan ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
This thesis deals with the fixation of lower jaw with bone tissue defect using commercially produced fixator. Large defects of bone tissue are mainly caused due to the removal of bone tissue affected by tumor. These topics have been researched on the basis of the literature. Subsequently, stress strain analysis of the lower jaw with the applied fixation plate was performed. This analysis was solved by using computational modeling with variational approach, ie the finite element method. The work also describes in detail the procedure of creating model of geometry, model of material, model of boundary conditions and loads with subsequent solution of several computational models. The stress strain analysis was done for lower jaw with varying size of the removed bone tissue with applied reconstruction plate made of CP-Ti Grade 4 and for the lower jaw with the plate, which is made of -Ti-Mo. Finally, the influence of the mechanical properties of the callus during formation of new bone tissue (callus healing) on the stress and deformation of the solved system was evaluated.
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