Identification of shock characteristics in hard disk drive by using time-frequency signal processing technique

Author

Yun-Sik Han ; Seong-Woo Kang ; Dong-Ho Oh ; Tae-Yeon Hwang ; Young Son ; Ja-Choon Koo

Author_Institution

Samsung Adv. Inst. of Technol., Suwon, South Korea

fYear

2000

fDate

6-8 Nov. 2000

Abstract

A transient signal processing technique using Wigner distribution (WD) is applied to identify the dynamic characteristics when a disk drive system is subject to external shock vibration. It is shown that the smoothed WD technique essentially reveals the propagating characteristics of shock vibration on the specified position of disk drive system as well as head-slap and lift-off phenomena. A parametric investigation for the shock spectrum of suspension is also presented to provide a useful guideline for the shock-resistant disk drive design.

Keywords

Wigner distribution; disc drives; hard discs; shock wave effects; Wigner distribution; disk drive system; external shock vibration; hard disk drive; head-slap; lift-off phenomena; shock characteristics; shock-resistant disk drive design; time-frequency signal processing technique; transient signal processing technique; Disk drives; Electric shock; Guidelines; Hard disks; Interference; Life estimation; Signal processing; Spectral analysis; Testing; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000

Conference_Location

Tokyo, Japan

Print_ISBN

0-7803-6254-3

Type

conf

DOI

10.1109/APMRC.2000.898945

Filename

898945