Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Numerical solutions of EMC problems of small airplanes
Šeděnka, Vladimír ; Dědková, Jarmila (oponent) ; Mazánek, Miloš (oponent) ; Raida, Zbyněk (vedoucí práce)
The dissertation describes actual problems in certifying small airplanes, which are to be solved by numerical modeling of the airplanes. The work is closely linked to the European project HIRF-SE, which deals with this problem. The essential part of the work is devoted to describing design of two modules within the HIRF SE framework: time-domain finite-element solver BUTFE and its excitation module BUTFE_EXC. The thesis describes solution of absorbing boundary conditions, dispersive media, anisotropy and thin wire approximation. Special attention is devoted to a proper approximation of thin wires with sharp bends. Current implementation of the approximation leads to overlaps of wire segments.
Numerical solutions of EMC problems of small airplanes
Šeděnka, Vladimír ; Dědková, Jarmila (oponent) ; Mazánek, Miloš (oponent) ; Raida, Zbyněk (vedoucí práce)
The dissertation describes actual problems in certifying small airplanes, which are to be solved by numerical modeling of the airplanes. The work is closely linked to the European project HIRF-SE, which deals with this problem. The essential part of the work is devoted to describing design of two modules within the HIRF SE framework: time-domain finite-element solver BUTFE and its excitation module BUTFE_EXC. The thesis describes solution of absorbing boundary conditions, dispersive media, anisotropy and thin wire approximation. Special attention is devoted to a proper approximation of thin wires with sharp bends. Current implementation of the approximation leads to overlaps of wire segments.

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