Parametric Study of Operational Shock in Mobile Disk Drives With Disk–Ramp Contact

Author

Rai, Rahul ; Bogy, David B.

Author_Institution

Univ. of California, Berkeley, Berkeley, CA, USA

Volume

47

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

1878

Lastpage

1881

Abstract

There has been a significant increase in the demand of hard disk drives (HDD) used in portable devices. High shock resistance is an important requirement for the reliable performance of mobile drives. In this paper we conduct a numerical study to understand the effect of shock parameters on the failure of the head-disk interface (HDI) using a spinning disk model. The results show that the HDD´s components have a strong influence on the shock resistance. This study can be helpful in improving the design of HDD components and air bearing sliders for better shock performance.

Keywords

disc drives; failure analysis; hard discs; interface magnetism; magnetic heads; mobile computing; reliability; HDD; HDI failure; air bearing slider; disk-ramp contact; hard disk drives; head-disk interface; mobile disk drive; mobile drive reliability; portable device; shock parameter effect; shock resistance; spinning disk model; Atmospheric modeling; Electric shock; Mobile communication; Numerical models; Resistance; Spinning; Vibrations; HDI failure; operational shock; pulse width; ramp contact;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2140094

Filename

5929008