AUTHOR : Do-Jin Kim, Hae-Joong Kim, Jung-Pyo Hong, Chul-Jun Park
ORGANIZATION : Compumag 2013
JOURNAL : Compumag 2013
YEAR : 2013.7
VOL :
ISSUE :
PAGE : ~
In this paper, a static rotor eccentricity analysis method is proposed. Electromagnetic noise by static eccentricity occurs in the course of manufacturing. The increase in errors is attributed to manufacturing errors of the components: the assembly error and the torsional error caused by shrink-fitting. For these reasons, the rotor is displaced from the center of the stator bore, but it still turns on
its own axis. Accordingly, in this study, the acoustic noise using the electromagnetic excitation force was analyzed according to the rotor eccentricity. Finite element analysis (FEA) was used to analyze the rotor eccentricity considering the electrical and mechanical characteristics. To verify the proposed method, an induction machine was fabricated and an experiment was conducted.