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Optimization of Skrochovice - Krnov Track Section
Loučka, Filip ; Wrana, Radim (referee) ; Plášek, Otto (advisor)
This thesis deals with design of optimization of the railway track situated between Krnov railway station and Skrochovice railway station. The section starts at km 87.892 at switch point of Krnov railway station and ends at km 90.4 behind the Krnov-Cvilín stop. The main goal of this work is to design geometric parameters of the track, reconstruction of the railway superstructure, restoration of the drainage and to propose a work technology. The work also includes working out of the bill of quantities and if it is possible a proposal of track speed increase. The design of railway crossings structure and the track on the bridge structure at km 90.367 was required.
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Analysis of piezoelectric energy harvester for railway applications
Kubiš, Juraj ; Tofel, Pavel (referee) ; Hadaš, Zdeněk (advisor)
This master´s thesis deals with a piezoelectric energy generator, witch is a device that converts mechanical stress into electrical energy. It is small device that is mostly placed on vibrating structures in order to collect energy. By gluing this piezoelectric layer to the bottom of the rail, it would be a suitable power supply for the communication modules, while obtaining a sufficient amount of energy. These modules ale used as self-powered sensors stations with vision to monitor the condition of railway lines in more detail. The problem of these modules is their power supply, when the energy gain from the generators located on the railway line is insufficient. By acquiring a new energy source, this problem can be greatly simplified and lead to simpler inspection and earlier maintenance on railway lines.
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Analysis of railway behavior on vehicles effects
Peňázová, Gabriela ; Kala, Jiří (referee) ; Salajka, Vlastislav (advisor)
The master’s thesis deals with the possibilities of railway track modeling. The computational models were created in ANSYS Classic. Simplified 2D model represents a longitudal half of classic single track construction, 3D models represent classic single track construction and RHEDA 2000 slab track. Static and dynamic response of 2D model was compared with analytical solutions by Timoshenko and Fryba. Static and dynamic responses of 3D models were analyzed and compared.
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HSR (RS42) Design of the Track Section Nova Ves Junction - Louny
Losenický, Miloš ; Janoušek, Jan (referee) ; Dušek, Erik (advisor)
The aim of bachelor thesis is to design a new high-speed line between Nova ves – railway station Louny. Route of HSR is designed only for passenger traffic and for track speed 250 kph. The track section starts by the road II/118. The thesis includes the design of the track junction in front of the railway station Louny with the modification of the existing railway lines and including the design of the exit from the HSR.
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Multi-body system of structures with electro-mechanical resonators
Tichý, Jiří ; Lošák, Petr (referee) ; Hadaš, Zdeněk (advisor)
This thesis is dealing with creation of computation model of energy harvestors. Harvestors based on translational motion and planar motion were modeled. These models were created in MSC Adams. Proposed harvestors are tranforming mechanical vibrations into electrical energy by electromagnetical induction. To achieve better electrical output, harvestors were tuned to natural frequency suitable for chosen aplication. First proposed harvestor is meant for railway track. For validation of its usability in intended application, model of railway track section is also proposed. Force generated by passing train is used for excitation of the track model. Second harvestor is nonlinear electromechanical oscilator proposed for use on unanchored sea buoy (drifter). After retuning previously proposed concept of energy harvestor to natural frequency 1.6 Hz, computation model for simulation purposes was created. After the simulation of sinusoidal excitation, the excitation based on real sea data was simulated. When excited by regular sea, the peak electric power 9 W was achieved. When excited by irregular sea the peak electrical power of the generator was 7.5 mW.
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