Operational Shock Simulation of the Head–Disk Assembly of a Small-Form Factor Drive

Author

Shi, Bao-Jun ; Shu, Dong-Wei ; Luo, Jun ; Gu, Bin ; Ma, Guo-Wei ; Ng, Quock Y. ; Gan, Samuel

Author_Institution

Nanyang Technol. Univ., Singapore

Volume

43

Issue

11

fYear

2007

Firstpage

4042

Lastpage

4047

Abstract

We created a finite-element model of the head-disk assembly (HDA) of a small-form factor drive. We conducted operational shock simulation and modal analysis with this finite-element model, and investigated the pulsewidth effect of a half-sine acceleration pulse on the shock responses. We found that the umbrella mode of the disk is the dominant mode for operational shock. Numerical results of the pulsewidth effect on the maximum shock responses further confirm the conclusions in a previous work by the authors.

Keywords

disc drives; finite element analysis; hard discs; magnetic heads; modal analysis; finite-element model; half-sine acceleration pulse; hard disk drive; head-disk assembly; modal analysis; operational shock simulation; pulsewidth effect; small-form factor drive; umbrella mode; Acceleration; Analytical models; Application software; Assembly; Design engineering; Electric shock; Finite element methods; Frequency; Hard disks; Space vector pulse width modulation; Drive; hard disks; head; shock; simulation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.906512

Filename

4352045