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This paper describes a method which reduces the number of unknowns in the finite element analysis of steel laminations. In the present method, the global variation in the electromagnetic field is assumed to be piecewise linear or polynomial while periodical, local variation is analyzed by the finite element method. This method allows us to make accurate analysis of the field including edge effects in steel laminations with low memory consumption and short computing time
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Igarashi et al. (2006) studied this question.
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