Title :
Analysis of Unbalanced-Magnetic-Pulls in hard disk drive spindle motors using a hybrid method
Author :
Chao, Bi ; Liu, Z.J. ; Low, T.S.
Author_Institution :
Western Digital (S) Pte Ltd., Singapore
fDate :
9/1/1996 12:00:00 AM
Abstract :
In spindle motor design and analysis, calculation of the torque and force is an essential step for the performance prediction. A method for the calculation of the Unbalanced-Magnetic-Pull (UMP) is proposed in this paper. As the method is based on the combination of the strength of analytical and numerical methods, it can yield more accurate results than traditional methods, and can be conveniently implemented in the computer aided design/analysis softwares for spindle motors
Keywords :
electric motors; hard discs; machine theory; small electric machines; force; hard disk drive; hybrid method; spindle motor; torque; unbalanced-magnetic-pull; Acoustic noise; Electromagnetic analysis; Electromagnetic fields; Hard disks; Iron; Magnetic analysis; Performance analysis; Shape; Tensile stress; Torque;
Journal_Title :
Magnetics, IEEE Transactions on
