Title :
Numerical analysis of spindle motor with conical shaped air dynamic bearing using a Monte Carlo method
Author :
Iwaki, Tadao ; Yamane, Shuji ; Konno, Daisuke
Author_Institution :
Dept. of Res. & Dev., Seiko Instrum. Inc., Chiba, Japan
fDate :
3/1/1999 12:00:00 AM
Abstract :
Conical shaped air dynamic bearings (CS-ADBs) are presented as the bearings used for spindle motors of hard disk drive. Numerical analysis was achieved for the bearings using Monte Carlo direct simulation (MCDS) as the flow of air dynamic bearing could be seen to be a dilute gas flow. The change of the pressure distribution from the rotational start to the equilibrium state is shown
Keywords :
DC motors; Monte Carlo methods; disc drives; hard discs; machine bearings; small electric machines; Monte Carlo method; conical shaped air dynamic bearing; dilute gas flow; direct simulation; equilibrium state; hard disk drive; pressure distribution; spindle motor; Analytical models; Fluid flow; Hard disks; Hydrodynamics; Instruments; Lubricants; Monte Carlo methods; Numerical analysis; Petroleum; Stators;
Journal_Title :
Magnetics, IEEE Transactions on
