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tramway transport in Teplice
Bartáková, Veronika ; Mervart, Michal (advisor) ; Jirsák, Petr (referee)
The bject of these was finding, if tramway transport had to be displaced by trolley bus transport in Teplice.Tramway transport was in Teplice over 60 years, this theses concerns with development with tram-lines, accidents and unrealized projects, which were financial and technical ambitious often.Technical and fiancial availability of tramway and trolley bus transport is compared in last part.
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Numerical Analysis of the Magnetic Field of the Trolley Bus
Nečesaný, Jakub ; Škramlík, Jiří
This work is focused on magnetic field modeling and analysis inside and outside the trolley bus 21Tr. Computation is carried out for various working regimes for application of two different power switching semiconductor devices. Influence on environment and near low-current and telecommunication systems is evaluated. Computation of the magnetic field is per-formed by a professional FEM-based program QUICKFIELD. Problems associated with numerical computation are discussed. Local maximum of the magnetic field is also determined.
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Porovnání magnetického pole vně a uvnitř trolejbusu 21 Tr řízeného GTO nebo IGCT tyristorem
Nečesaný, Jakub ; Doležel, Ivo
This work is focused on the magnetic field modelling and analysis inside the trolley bus 21TR. Mathematical description is presented. Computation is carried out for accelerating regime for application of two different power switching semiconductor devices GTO and IGCT. Study of the magnetic field is done for head level of standing and sitting people. Local maximum of the magnetic field is also determined. Differences between magnetic field levels given by GTO and IGCT power switching semiconductor devices are consecrated. Finally, geometrical convergence of this problem is evaluated
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