|
|
To Dvur Kralove by train - Transfer Terminal in Dvur Kralove nad Labem
Hudečková, Kristína ; Růžička, Tomáš (referee) ; Ponešová, Barbora (advisor)
The terminal represents joining two things – an internal and an external – a city and a surroundings. The intetion of my bachelor thesis is to connect fluently a main hiking trail from a center of city with a bus service and train transport. To make this connection as natural as possible, the proposal of terminal is based on a mass concentration in a point of joint and gradual diffusion towards the the city and the surroundings. The terminal is designed as a longitudinal structure with a one communication in the middle of the layout. The space of terminal is defined by twenty steel frames arranged one behind the other in the direction of the axis of connection between train track and hiking trail from the center of the city. The steel frame becomes the dominant element of the terminal. Different closing of sections between particular frames creates spaces of different characters and a different rate of permeability.
|
|
|
The problems of production of railway wheels
Šimčík, Vladimír ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The main idea of this work is especially to make clear the principle of railway wheelset technology, consisting of wheels, axle and other necessary components. Based on available information sources, BONATRANS GROUP a.s. literature, practical advices, experience and knowledge of practical issues, the problems in the manufacture of railway wheelsets and proposals for their elimination will be named.
|
|
|
Anylytical solver for strength calculation of railway axles
Fišer, Petr ; Náhlík, Luboš (referee) ; Vaverka, Michal (advisor)
This master thesis deals with wheel set axles of rail vehicles, their design and methods of implementation stress analysis. In this work, I created a powered locomotive wheel set: axle and wheel. For the purpose of the design department of the Bonatrans Group a.s. company I developed an analytical solver, which allows creating stress analysis, which will be used for verifying finished design and in addition it allows printing of stress analysis as report for the railway´s offices. Next step was a stress analysis of this design of axle in this analytical solver.
|
|
|
High Speed Turbine with Non-Uniform Cascade
Stareček, Jakub ; Drábková, Sylva (referee) ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This doctoral thesis is focused on hydraulic design of axial turbine by CFD and FEM analyses. The results are runners with nonuniform cascades. Nonuniform runners consist of blades with different axial positions, blades with different pitch angles in runner or indifferent blades. Each runner is designed with respect to 3D printing by FDM or SLS technology and hydraulic measuring. The analyses of the excitation frequencies, modal analysis, shape of the turbine operating range, maximal efficiency, output parameters and cavitation properties are emphasized.
|
|
|
The study wheeled undercarriages of mobile machines
Olšovský, Petr ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The objective of this bachelor thesis is to summarize basic findings regarding various types of wheeled undercarriages that are used on contemporary machines. The first part of this paper deals with numerous requirements that should be fulfilled by the design of an undercarriage. The fulfilment of these requirements also helps to assess whether the design should be used for a specific machine. Another focus of this paper is to summarize all design solutions regarding propulsion, tyres, stabilizing elements and steering mechanisms. These solutions are compared to each other. Important design elements of wheeled undercarriages are described as well.
|
|
|
Design of Experimental Stand for the Study of Railway Vehicles Sanding
Galas, Radovan ; Hruška, Marek (referee) ; Šperka, Petr (advisor)
Presented master’s thesis describes the design and the implementation of an experimental device used for the study of tribological aspects of wheel-rail contact. In this work, the reader will first learn the fundamentals such as adhesion, slip, traction curve, etc. Subsequently, the work is describing devices that are used for the study of wheel-rail contact around the world. This section is followed by the author proposed solution. The result is a twin disc device in the scale of 1:3. The device allows determining traction characteristics for different environmental conditions (presence of water, sand and oil in contact for different temperatures) and various operating parameters (contact pressure and speed). A part of this work are also the validation experiments and complete design documentation.
|
|
|
Favorit Brno / cycling stadium - bicross track / architectural study - design / stage 2021/22
Nováková, Lucie ; Žalmanová, Petra (referee) ; Šindlar, Jiljí (advisor)
The assignment of the diploma thesis is an architectural study of a cycling stadium - velodrome in the Pisárky district in Brno for TJ Favorit Brno. The existing velodrome is located southwest on the edge of the Brno Exhibition Center on Křížovského Street. The Velodrome no longer meets the current requirements of track cycling, but it is historically valuable and has its genius loci. The new 250 m long wooden bike track (together with other parameters of the International Cycling Union) and its associated sports grounds are "inserted" into the existing velodrome, which is modified and reconstructed according to requirements. The grandstands have been preserved. The built-in building with a new track is then completely roofed, creating an enclosed space. As part of the stadium reconstruction, a new facility was also created for TJ Favorit Brno from a modular container system; These are changing rooms for athletes, administrative areas, and facilities for visiting clubs and athletes and IP areas. The container construction system for sports facilities is very practical, economical, fast, environmentally friendly, variable, and flexible to the current requirements of a constantly evolving sport. The Anteroom and ground floor in the southern part of the existing velodrome is equipped with services for the public: a cafe, souvenir shop, cash register, information center, service, and a bicycle and sports equipment store. The new track with grandstands is covered with ETFE foil anchored to new lattice trusses, which are connected to the existing roof.
|
|
|
Study of construction machinery for the type of chassis
Válek, Adam ; Kašpárek, Jaroslav (referee) ; Kubín, Martin (advisor)
The point of the Bachelor´s thesis is to present a complex study of chassis of construction machinery. In the chapters, deals with general assessment criterion of these chassis, contains list of most used types of undercarriages of construction machines and assesses their advantages, disadvantages and usability. The thesis also contains a treatise of selected less common types and assesses interaction between the type of undercarriage and traversing surface.
|
|
|
Teaching-space paradigm
Behro, Daniel ; Maršíková, Hana (referee) ; Sládeček, Svatopluk (advisor)
What should the current area of higher education be like? And what should be the space for creative work? Is the type of teaching reflected in the school building itself? I wonder if, for example, the Faculty of Social Studies would be made up only of social spaces? If the Faculty of Mechanical Engineering were to look like a hall for the production of automotive components, what would the Faculty of Legal Studies look like? And what about the Faculty of Architecture? Does the appearance and quality of the building determine the appearance of the projects created there? Does its structure affect the next generation of architects? Or should it be as clean and white as canvas before the first stroke of the brush is projected on it? I deal with both assumptions: the building as a pure paper, which gives freedom for creativity and does not limit the mind, and on the other hand, matter, structure, space, which shows what architecture can do. I prefer freedom of choice, which is why I want to describe both approaches in the proposal. Open-space free layout versus firmly defined closed studios. Artistic space, free versus technically and rationally defined space. Virtual space versus space of unchanging matter.
|
|
|
Classification and evaluation of rail wear
Nohel, Rostislav ; Frýza, Josef (referee) ; Galas, Radovan (advisor)
This bachelor’s thesis is focused on the wear of rails. In this thesis, the reader will be firstly introduced to the fundamentals such as nomenclature of wheel and rail, adhesion, adhesion coefficient, contact area, slip, traction characteristic and wear. Subsequently, the fundamental types of material wear (adhesive, abrasive and fatigue) will be explained, which occur in the wheel-rail contact. In the next part, the individual rail defects are analysed with respect to locations. The output of the bachelor’s thesis is overview and description of the most common rail defects which are usually caused by fatigue wear.
|
guest ::
