Title :
Analysis of radial force as a source of vibration in an induction motor with skewed slots
Author :
Im, D.H. ; Chang, J.H. ; Park, S.C. ; Kwon, B.I. ; Hong, J.P. ; Kim, B.T.
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
fDate :
3/1/1997 12:00:00 AM
Abstract :
This paper presents a method to analyze radial force densities acting on each stator tooth of an induction motor with skewed slots. A two-dimensional finite element method is used for electromagnetic field analysis of an induction motor, and skew effects are considered by coupling several disks cut by planes perpendicular to the shaft. Radial force densities as a source of vibration are calculated along the surface elements of each stator tooth and its time harmonics are examined by discrete Fourier decomposition
Keywords :
discrete Fourier transforms; electromagnetic fields; electromagnetic forces; finite element analysis; induction motors; machine theory; stators; vibrations; discrete Fourier decomposition; electromagnetic field analysis; induction motor; radial force analysis; radial force densities; skewed slots; stator tooth; surface elements; time harmonics; two-dimensional finite element method; vibration source; Conductors; Equations; Induction motors; Magnetic analysis; Magnetic fields; Magnetic forces; Rotors; Stators; Teeth; Vibrations;
Journal_Title :
Magnetics, IEEE Transactions on
