Title :
Modelling and torque analysis of permanent magnet spindle motor for disk drive systems
Author :
Liu, Z.J. ; Bi, C. ; Tan, H.C. ; Low, T.S.
Author_Institution :
Magnetics Technol. Centre, Nat. Univ. of Singapore, Singapore
fDate :
11/1/1994 12:00:00 AM
Abstract :
This paper discusses the modelling of magnetic field distributions in disk drive spindle motors using a combined finite element and analytical approach. The torque analysis of a spindle motor having NdFeB magnet poles is also presented. It is shown that the proposed method provides an effective tool for reliable torque computation in contrast to conventional finite element schemes
Keywords :
brushless machines; finite element analysis; machine theory; motor drives; permanent magnet motors; torque; NdFeB; NdFeB magnet poles; combined finite element/analytical approach; disk drive systems; magnetic field distributions; modelling; permanent magnet spindle motor; torque analysis; torque computation; Disk drives; Finite element methods; Iron; Magnetic analysis; Magnetic fields; Magnetic separation; Permanent magnet motors; Saturation magnetization; Soft magnetic materials; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
