Title :
Electromechanical analysis of a HDB spindle motor considering electromagnetics, thermal analysis, hydrodynamic bearing, and rotor dynamics
Author :
Jang, Gunhee H. ; Park, S.J. ; Lee, S.H.
Author_Institution :
Hanyang Univ., Seoul, South Korea
fDate :
5/1/2005 12:00:00 AM
Abstract :
This research presents a finite element method to analyze the electromechanical coupled field of a hydrodynamic-bearing (HDB) spindle motor of computer hard disk drives considering electromagnetics, thermal analysis, HDB, and rotor dynamics to investigate the coupling effect. Simulation results are verified by the experiments, and it shows that it is essential to include the appropriate coupled fields to predict the performance accurately. This research also investigates the electromechanical characteristics of a HDB spindle motor due to the electromechanical coupling effect.
Keywords :
disc drives; electromechanical effects; finite element analysis; hard discs; magnetic fields; thermal analysis; HDB spindle motor; computer hard disk drives; coupled fields; electromagnetics; electromechanical analysis; electromechanical coupling effect; electromechanical field; finite element method; hydrodynamic bearing; hydrodynamic-bearing; rotor dynamics; thermal analysis; thermal field; Brushless DC motors; DC motors; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic fields; Equations; Finite element methods; Hard disks; Hydrodynamics; Rotors; Electromechanical field; finite element analysis; hard disk drive (HDD); hydrodynamic bearing (HDB); rotor dynamics; thermal field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.845020
