Electromechanical analysis of a HDB spindle motor considering electromagnetics, thermal analysis, hydrodynamic bearing, and rotor dynamics

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...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2005-05, Vol.41 (5), p.1608-1611
Main Authors: Jang, G.H., Park, S.J., Lee, S.H.
Format: Article
Language:English
Subjects:
Brushless DC motors
Computational fluid dynamics
Computer simulation
Cross-disciplinary physics: materials science
rheology
DC motors
Disk drives
Electromagnetic analysis
Electromagnetic coupling
Electromagnetic fields
Electromechanical field
Equations
Exact sciences and technology
finite element analysis
Finite element methods
hard disk drive (HDD)
Hard disks
hydrodynamic bearing (HDB)
Hydrodynamics
Joining
Magnetism
Materials science
Motors
Other topics in materials science
Physics
Rotor dynamics
Rotors
Spindles
Thermal analysis
thermal field
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Description
Summary: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.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2005.845020