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Spokeless Ferris Wheel – Amusement Device
Novák, Petr ; Šťastný, Antonín (referee) ; Krmela, Luděk (advisor)
The thesis deals with the design and strength analysis of a spokeless Ferris wheel with a ring diameter of 30 m in accordance with the regulations for amusement technology ČSN EN 13814-1. The design, structural and fatigue analysis are covered. The static strength includes the check of the profiles, the selected weld, the selected pin joint and the check of the stability of the structure. To verify the manufacturing quality of the structure, a tensile test of the welded coupon is made.
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Image of Luxembourg in Czech history textbooks in the 19th and 20th century
Šťastný, Antonín ; Doležalová, Eva (advisor) ; Beneš, Zdeněk (referee)
The objective of this diploma thesis is to characterize the image of Luxembourgs in the Czech history textbooks in the 19th and 20th century. The work is based on the assumption that the history education takes a significant part in making a young person's identity. The thesis describes the development of this image and the way in which the educational literature reflected the atmosphere of the day and its transformation in the context of historical development. The dynamic development of the image of the Czech history of 14th and 15th centuries is the central theme of the work. It will be mainly focused on the historical figures of Bohemian Luxembourg kings: John of Luxembourg, Charles IV, Wenceslaus IV and Sigismund of Luxembourg.
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Image of Luxembourg in Czech history textbooks in the 19th and 20th century
Šťastný, Antonín ; Doležalová, Eva (advisor) ; Beneš, Zdeněk (referee)
The objective of this diploma thesis is to characterize the image of Luxembourgs in the Czech history textbooks in the 19th and 20th century. The work is based on the assumption that the history education takes a significant part in making a young person's identity. The thesis describes the development of this image and the way in which the educational literature reflected the atmosphere of the day and its transformation in the context of historical development. The dynamic development of the image of the Czech history of 14th and 15th centuries is the central theme of the work. It will be mainly focused on the historical figures of Bohemian Luxembourg kings: John of Luxembourg, Charles IV, Wenceslaus IV and Sigismund of Luxembourg.
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Historical festivities in towns and their historical themes taken from the Přemyslid and Luxembourg period
Šťastný, Antonín ; Doležalová, Eva (advisor) ; Čechura, Jaroslav (referee)
The Bachelor's thesis "Historical festivities in towns and their historical themes taken from the Premyslid and Luxembourg period." This study describes the phenomenon of historical festivities in towns of Central Europe. Its aim is to highlight the historical themes of the festivities, e.g. the events being celebrated, and their association with today's festivities. The work describes the development and changes which the festivities went through and the present-day influences on their appearance and the trends of their further changes. Beside the list of major festivals and their mutual comparison, the study focuses on their performers, on the storylines of the celebrations and on the response of the audience.
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Modelling of Load Impacts Acting on Transport and Handling Equipments with the Aim of their Optimization
Šťastný, Antonín ; Hrabovský, Leopold (referee) ; Kuľka,, Jozef (referee) ; Škopán, Miroslav (advisor)
This PhD thesis deals with employment of the state of the art methods of mathematical optimization and structural analysis in the field of load carrying steel structures of handling devices. The goal of the thesis is to compile a methodology which enables generating of optimal dimensions of conceptually designed load carrying parts of handling devices. The proposed methodology is composed of sub-methods which are successively applied to find an optimal configuration of structure according to a chosen criterion. The methodology incorporates sub-methods such as Design of Experiments, parametric finite-element modelling, the state of the art computational methods for stability assessment, mathematical approximation methods and state of the art optimization schemes based of both, heuristic and gradient principle. Recommendations from Eurocode 3 are used to introduce imperfections to the finite element model in order to perform the nonlinear buckling analysis. The practical part of this thesis is focused on optimization of welded beams. The principle of the methodology is in detail explained and demonstrated on an example of lifting spreader beam of load carrying capacity of 20 tons. The proposed methodology is practically realized by an algorithm created in Matlab software. Matlab is also utilized to implement some sub-methods including mathematical optimization schemes. Both, gradient and heuristic optimization algorithms are used for comparison and mutual verification. Structural analysis is performed by means of parametrical finite-element models which are built in the Ansys Parametric Design Language (APDL). The methodology takes into account buckling, which is inherent to thin walled structures under compressive load. The buckling analysis is performed by means of both, linear and non-linear procedures in Ansys. The output of the algorithm is an optimized configuration of the structure, which minimizes the objective function and complies with all requirements implemented in the form of design constraints.
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Aviation maintenace crane
Bureš, Martin ; Šťastný, Antonín (referee) ; Pokorný, Přemysl (advisor)
This master´s thesis solves design of a mobile crane for handling air aggregates and ejection seats. Handling crane provides lifting a maximum weight of 300 kg to a height of 4600 mm. Subject of the work is the choice of appropriate technical solutions, design of lifting mechanisms, supporting structures and accessories. The suitability of the solution is checked by strength analysis of individual units. Another task is to provide mobility equipment and control stability against overturning. The appendix includes protocols static analysis of the program Nexis32, drawing overall crane assembly and manufacturing drawings selected parts.
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