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Frame of portal crane
Šesták, Jiří ; Zeizinger, Lukáš (referee) ; Pokorný, Přemysl (advisor)
The thesis deals with the structural design of a gantry crane for ship handling. The frame consists of beams which are connected by plate connections and flanges. The girders are of welded box section. The material chosen was S460N steel. The design was based on a combination of loads, which were determined using the loading forces and their respective dynamic coefficients that can act on the frame. The frame design was verified using the finite element method in MSC Apex software. The work also includes a theoretical calculation of the power required to drive the whole crane. A partial drawing documentation is prepared for the proposed structure.
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Design of mobile stand for suspending of electrodynamic exciter for aeroelastic phenomena testing in aviation
Vojáček, Jan ; Löffelmann, František (referee) ; Navrátil, Jan (advisor)
This Bachelor thesis deals with the design of mobile stand for carrying out ground vibration tests in aviation applications. These tests mainly judge the tolerance of aircraft against flutter. The start of the thesis deals with the teoretical background of aeroelasticity together with the historical events that led to the origins of research of such phenomenons. The second part of the tesis clarifies the motivation for designing the stand through overview of simmilar equipment avaiable on the market and through introducing the equipment used at the aircraft testing laboratory at the Institute of Aerospace Engineering. Third part of the thesis states possible approaches to the overal design of the stand and then crosses over to the chapter that discusses the chosen solution of the design. At the end there are introduced the results of modal analysis. These results state the natural frequencies occuring in the range of frequencies that normally occur while testing.
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Hydraulically driven vertical wood splitter
Moravec, David ; Novák, Tomáš (referee) ; Škopán, Miroslav (advisor)
The bachelor's thesis developed within the framework of the bachelor's study deals with a critical research of wood splitting machines and an overview of technical parameters of the material to be split. Subsequently, the thesis deals with the safety requirements imposed on this type of equipment and their specific form within the framework of the problem addressed. In the next part of the work, the hydraulic circuit and elements of the hydraulic circuit were designed, together with the design of the supporting frame of the splitting machine according to the predefined parameters. Together with the design of the splitting equipment, a drawing documentation of the overall assembly and welding sub-assembly of the equipment frame was created.
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Design of mobile stand for suspending of electrodynamic exciter for aeroelastic phenomena testing in aviation
Vojáček, Jan ; Löffelmann, František (referee) ; Navrátil, Jan (advisor)
This Bachelor thesis deals with the design of mobile stand for carrying out ground vibration tests in aviation applications. These tests mainly judge the tolerance of aircraft against flutter. The start of the thesis deals with the teoretical background of aeroelasticity together with the historical events that led to the origins of research of such phenomenons. The second part of the tesis clarifies the motivation for designing the stand through overview of simmilar equipment avaiable on the market and through introducing the equipment used at the aircraft testing laboratory at the Institute of Aerospace Engineering. Third part of the thesis states possible approaches to the overal design of the stand and then crosses over to the chapter that discusses the chosen solution of the design. At the end there are introduced the results of modal analysis. These results state the natural frequencies occuring in the range of frequencies that normally occur while testing.
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