R. Zwingel, L. Jänicke, M. Stichler, A. Kost
While optimizing highly utilized induction machines — e.g. for traction applications — the problem of cooling is of importance. The necessary cooling ducts in the rotor lead to saturation problems in the rotor iron. As there exist no analytical means for solving the resulting nonlinear field problem, the effects on the magnetic field have to be investigated by numerical methods. This paper presents the application of the adaptive 2D finite element method for a study of the cooling ducts' effects.
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