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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Integrální výpočet magnetického pole stíněného trojfázového vedení
 Karban, P. ; Doležel, Ivo ; Ulrych, B.
The paper deals with numerical modeling of a three-phase harmonic-current carrying shielded line. In most similar cases, computation of magnetic field and other associated quantities is realized using the finite element method that is effective, reliable and the results obtained correspond to the physical reality. Nevertheless, the method may become problematic when particular subre-gions (conductors, insulation, shielding elements) are geometrically incommensurable, which is even the case of thin shielding shells. That is why the authors use the integral approach for modeling of the relevant effects. Presented is its basic continuous mathematical model that is solved numerically. The theoretical analysis is supplemented with a typical example.
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Řešení nestacionárních problémů vířivých proudů integrálním přístupem
 Doležel, Ivo ; Karban, P.
Althout most eddy problems are theoretically solved by various differential techniques, there exist several classes of tasks where use of the differential approach may be complicated or even prohibitive. Mentioned can be, for example, problems characterized by geometrical incommensurability of individual subdomains, by their motion or by ignorance of the boundary conditions. In such a case, application of the integral approach may be an advantage. The paper presents the theoretical background of the method.
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