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Cable-supported bridge
Adler, Filip ; Glovina, Filip (referee) ; Nečas, Radim (advisor)
The subject of this master thesis is to design a pedestrian bridge supported by cables. There are three variants of studies created for this case and for most suitable one, all documentations were produced. The primary focus of this work is on static design solution with an output of several drawings. Static model for results from load cases included construction stages and was created in Midas Civil. Design and checks were performed by hand calculations, complemented by checks of several sections by IDEA StatiCa software. Analysis and calculations are compliant to up-to-date codes and respect the fundamentals of analysis due to limit states.
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Stress-strain analysis of the axial turbine of turboprop engine
Kolárik, Matej ; Ing. Petr Navrátil, Ph.D (referee) ; Skalka, Petr (advisor)
This diploma thesis deals with a creation and subsequent analysis of the computational model of the turboprop engine's turbine designed by Prvá Brněnská Strojírna Velká Bíteš. The computational model is created and solved in the finite element model system ANSYS. A cyclic symmetry is taken into account during the solution. The static analysis of the turbine was carried out in objective to quatify prestress effects which are caused by a rotation, higher temperature and an excitation from stator blades. These prestress effects were used in the modal analysis of the turbine. Harmonic analysis were calculated to simulate an operation conditions and a resonance state. The results of these analysis indicate that the higher temperature has the biggest impact on the properties of the turbine. It is also shown, that during the operation of the engine the turbine runs in the mode which is not even close to the resonance state.
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Prestressed bridge over the Orava river
Figuli, Juraj ; Nečas, Radim (referee) ; Koláček, Jan (advisor)
The objective of bachelor’s thesis is design and dimensions of a single pole road bridge, which is designed for traffic in the city. Work forms the basis of static review of the structure of the bridge, for which was elected a variant of two-beam whit span of 24,5 meters. Two-beam is proposed as stressed structure, statically acting as a simple beam. Individual assessment according to the European standard for design (Euro code). The load effects are evaluated by the calculation program Scia Engineer 2012.0 based on a finite element method.
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Suspension footbridge over the Bečva River
Kavecký, Jakub ; Zlatuška, Karel (referee) ; Nečas, Radim (advisor)
The theme of this master thesis is the design of a footbridge for pedestrians and cyclists over the river Bečva. A suspended footbridge is selected from three developed bridge variants. The design was analyzed in more detail in the Midas Civil program where the construction timeline was also included. The footbridge was loaded with dead loads, live loads from pedestrians and climatic loads from wind and temperature. For internal forces, the structure was assessed for ultimate and serviceability limit states. The pylon was also considered in the program with 2nd order effects. The model of footbridge was subjected to dynamic analysis. The graphical output of the work consists of overview drawings, reinforcement drawings, detail and phased construction drawing with visualization.
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Dynamic Model of Air Suspension System
Janečková, Radka ; Zháňal, Lubor (referee) ; Fojtášek, Jan (advisor)
This master’s thesis is about creating a dynamic model of pneumatic suspension. At first reader gets to know some general information about pneumatic suspension like: classification of this type of suspension, historical development and how modern air suspension systems work. Next, there is review of some created analytical models of this type of suspension. Last but not least, the new dynamic model of air suspension is created in the software ADAMS/Car. It is tested in different types of analysis, such as quasistatic or dynamic suspension analysis and then the model is implemented in the full vehicle Tatra T158 4x4 and more analysis are made. The new model is then evaluated in terms of pros and cons.
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Cable-supported bridge
Adler, Filip ; Glovina, Filip (referee) ; Nečas, Radim (advisor)
The subject of this master thesis is to design a pedestrian bridge supported by cables. There are three variants of studies created for this case and for most suitable one, all documentations were produced. The primary focus of this work is on static design solution with an output of several drawings. Static model for results from load cases included construction stages and was created in Midas Civil. Design and checks were performed by hand calculations, complemented by checks of several sections by IDEA StatiCa software. Analysis and calculations are compliant to up-to-date codes and respect the fundamentals of analysis due to limit states.
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Stress-strain analysis of the axial turbine of turboprop engine
Kolárik, Matej ; Ing. Petr Navrátil, Ph.D (referee) ; Skalka, Petr (advisor)
This diploma thesis deals with a creation and subsequent analysis of the computational model of the turboprop engine's turbine designed by Prvá Brněnská Strojírna Velká Bíteš. The computational model is created and solved in the finite element model system ANSYS. A cyclic symmetry is taken into account during the solution. The static analysis of the turbine was carried out in objective to quatify prestress effects which are caused by a rotation, higher temperature and an excitation from stator blades. These prestress effects were used in the modal analysis of the turbine. Harmonic analysis were calculated to simulate an operation conditions and a resonance state. The results of these analysis indicate that the higher temperature has the biggest impact on the properties of the turbine. It is also shown, that during the operation of the engine the turbine runs in the mode which is not even close to the resonance state.
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Prestressed bridge over the Orava river
Figuli, Juraj ; Nečas, Radim (referee) ; Koláček, Jan (advisor)
The objective of bachelor’s thesis is design and dimensions of a single pole road bridge, which is designed for traffic in the city. Work forms the basis of static review of the structure of the bridge, for which was elected a variant of two-beam whit span of 24,5 meters. Two-beam is proposed as stressed structure, statically acting as a simple beam. Individual assessment according to the European standard for design (Euro code). The load effects are evaluated by the calculation program Scia Engineer 2012.0 based on a finite element method.
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