Title :
Dynamic analysis of disk-spindle system in hard disk drive
Author :
Hasegawa, Tomohro ; Du, Hongbing ; Osawa, Harushige ; Nishimura, Hideki ; Oe, Takayuki
Author_Institution :
Shiga Tech. Center, Nidec Corp., Shiga, Japan
Abstract :
Vibration analysis and experimental study of disk-spindle system in hard disk drives are presented in this paper. The natural frequencies, mode-shapes and frequency response are calculated with the consideration of the flexibility of rotor and base structures of disk-spindle system. The analytical model is verified by comparing the simulation results with the experimental data for various of motor configurations and size. It is shown that they agree very well with each other.
Keywords :
DC motors; disc drives; frequency response; hard discs; small electric machines; vibrations; base structures; disk-spindle system; dynamic analysis; frequency response; hard disk drive; mode-shapes; motor configurations; natural frequencies; rotor flexibility; vibration analysis; Analytical models; Equations; Frequency measurement; Frequency response; Hard disks; Home computing; Laser excitation; Laser modes; Rotors; Shape;
Conference_Titel :
Magnetic Recording Conference, 2002. Digest of the Asia-Pacific
Conference_Location :
Singapore
Print_ISBN :
0-7803-7509-2
DOI :
10.1109/APMRC.2002.1037622
