|
|
Testing of sintered carbide cutting tools during high feed milling
Frank, Ondřej ; Vítek, Jiří (referee) ; Sedlák, Josef (advisor)
The aim of this thesis is to compare high feed milling tools from Dormer Pramet, s.r.o., which will use these results to complete the development process of a new family of tools. The tools were compared in terms of axial runout, chip evacuation and chip forming, temperature ratios and temperatures at the cutting area, roughness of machined surfaces and machine spindle loading, machining vibration levels and VBD cutting edge durability. The tests were carried out on the machined material X37CrMoV5-1 in two states, a soft state with a hardness of about 300 HB and a hardened state with a hardness of about 54 HRC. The thesis also includes a theoretical section dealing with high feed milling technology, tool wear and a description of the tested tools. The results obtained are summarized at the end of the thesis in a techno-economic evaluation.
|
|
|
Static analysis of reinforced concrete walls with additionally made openings
Šimek, Ondřej ; Borzovič, Viktor (referee) ; Vítek, Jan (referee) ; Zich, Miloš (advisor)
The thesis deals with the implementation of additional openings in reinforced concrete walls from the point of view of structural analysis. Two types of walls are analysed: panel walls and infill shear walls. In the introductory part, the current state of knowledge in the methods of analysis of this issue is discussed and their advantages or shortcomings are pointed out. Several types of wall specimens with pre- or post-made openings with different types of reinforcement representing the state after an additional opening is made are proposed and their behaviour is experimentally and subsequently numerically verified. On the basis of the data obtained, methods are proposed for the structural analysis and the design of reinforced concrete walls with additional openings. For panel walls with openings, the analysis method using wall models is extended and the method of static assessment is specified. The method of analysis for infill shear walls with an opening using equivalent diagonal bar strut has been extended to take account for the reinforcement and its load state. The proposed structural analysis methods were applied to a real prefabricated house with an additional opening and to a hypothetical frame structure with a proposed structural intervention in its bracing system.
|
|
|
Pension for Seniors
Vítek, Jan ; Ing.Jaroslav Kavka (referee) ; Čuprová, Danuše (advisor)
This Diploma´s thesis proceses topic Pension for Seniors. The object is situated in Božetěchova street in Brno-Královo Pole. This house is new building, three-floored and partial basemented. Basement is a technical floor. On the first floor are spaces of services and offices. On the second and the third floor are situated twenty-eight flats. Shape of the house is „L“ and its basic dimensions are 39,0 x 38,0 meters. The building is finished with a single layered flat roof. Height of house is 10,715 meters. The base structures is of conrete C16/20. The bearing walls on 1S are of monolithic reinforced concrete. Other Bering construction system is used of Porotherm. The staircase structure consists is of monolithic reinforced concrete.
|
|
|
Architectural organism
Drbal, Jaroslav ; Mačuda, Michal (referee) ; Vítek, Jiří (advisor)
The inspiration is the human body. It is a fascinating grouping of diverse types of tissues, thanks to specialized cells that form organs that perform various tasks in your body - perfect cooperation of individual groups - organs. Your authorities should be understood as "machines" that fulfill your responsibilities throughout the system. These machines are suitable for us and help us so that we can get on our side as well. Man changes, he looks for the environment and organs, and therefore parts of his bodies change with whom. Motivation is the search for articulation of individual processes, principles taking place in the human body. They perceive them that it is possible to observe all the principles taking place on a microscopic scale and to approach us on a scale - they will reduce man. All is intertwined.
|
|
| |
|
|
Riverside House
Bolcek, Roman ; Mačuda, Michal (referee) ; Vítek, Jiří (advisor)
It is a residential bridge over the Thames. The combination of two shores, where the structures form a program that is missing in the given territory. Structures are designed as self-conscious, and in addition they form a solar power plant.
|
|
|
The Counterpoint
Bučková, Anna ; Mačuda, Michal (referee) ; Vítek, Jiří (advisor)
The connection between music and architecture was a field of many people all over the world throughout history. Attitude is different in every single way. Someone feels music in architecture through the feelings someone uses exact methods. My way led through the many formal analysis to design my own composing method on the basis of music patterns. The idea for designing my opera house in the capital Prague on the bank of the Vltava river was a symphonic poem written by Bedřich Smetana – Vltava. The tones of the music flow gracefully like a river, from the soft lines of flutes to the orchestra pother. And this is the story of the template for my design, where the river bank escalates to the opera theatre. And this space of opera is curious in some way. It can be changed between performances from opera to the Philharmonie purpose.
|
|
|
Manipulator in the line for heating logs
Vítek, Jan ; Pokorný, Jan (referee) ; Pokorný, Přemysl (advisor)
This thesis concerns with construction design of manipulator. The purpose of the manipulator is to transport beech logs. It is a part of the production line for heating and steaming veneering of the logs before their subsequent processing. This thesis presents a new design solution. It offers detailed descriptions of the purpose of the construction and of individual functional assemblies. It also describes the means for operating the machine and the types of sensors used. Calculation of forces and reactions in the mechanism, based on a simplified load calculation model, constitutes an important part of the work. Design of key components of the machine is then based on the results of the analysis of the forces involved. The supplements of the thesis include photographs of the manipulator realization and selected technical design.
|
|
|
Biom
Bolcek, Roman ; Tholt, Tomáš (referee) ; Vítek, Jiří (advisor)
Our planet has been facing enormous challenges over the last century, caused by population growth, an ever-evolving industry, resulting in ever-increasing CO2 production, rising water levels, misuse of agricultural land and the extinction of animal species. This causes the destruction of the Biome. Architectural and urban tendencies in the construction of cities, which do not change even today, use the maximum area, materials that cannot be recycled, also have a large share in this. Insufficient use of renewable resources, modern agriculture, self-sufficiency, both housing and urban structures. The reason for not using these technologies is largely a political and commercial problem. The aim of this work is to examine the problems we face today and find meaningful solutions. Change existing architectural and urban trends. To create a self-sufficient structure in places where Biomes were destroyed and to create new ones accordingly. These places often have poor living conditions, such as high temperatures, lack of drinking water and overcrowding. With the help of simple rules of working with the landscape and the use of modern technology, create a new biosphere environment, change the climatic conditions in a given place and create suitable conditions for the life of both plant and animal communities. The structure should be inhabited by a certain number of people who will live in modules that will be fully self-sufficient, following the ISS model. Provide plenty of drinking water, food and energy. The structure should be created from plastic waste by new construction technologies, such as 3D printing using nanotechnology and carbon fiber. This should make it fully recyclable and renewable. The goal is to work with one structure and subsequently create another structure.
|
|
|
Soundspce
Jandová, Eva ; Kopec, Jakub (referee) ; Vítek, Jiří (advisor)
The aim of this work is to research the relationships between abstract musical space and physical space, to explore the various possibilities of connecting sound, light and matter in space, their interaction and unfolding over time. The knowledge and outputs will later be applied in the design of a cultural object providing a visual and acoustic experience with an emphasis on human perception.
|
guest ::
RSS feed.