Influence of disk curvature on slider attitude under operational shock conditions for a 2.5-in. hard disk drive

Geonyup Lim, Kyoung Su Park, No Cheol Park, Young Pil Park, Yonghyun Lee, Young Bae Chang, Cheol soon Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Recently, the number of disks in hard disk drives has increased, and the gap between the slider and disk has decreased. These changes make the contact between the ramp and disk easily. External shock and ramp–disk contact can cause change in disk curvature. Such a change in disk curvature affects the air bearing pressure between the slider and disk. However, disk curvature has not been considered in the previous research. Thus, in this study, we investigated the influence of disk curvature on slider dynamics. Disk curvature was calculated from a transient shock analysis, and was then applied to slider dynamic analysis. As a result, disk curvature reduced the shock performance, by decreasing the minimum flying height and increasing the pitch and roll angle of the slider.

Original languageEnglish
Pages (from-to)1315-1324
Number of pages10
JournalMicrosystem Technologies
Volume22
Issue number6
DOIs
Publication statusPublished - 2016 Jun 1

Fingerprint

Bearings (structural)
Hard disk storage
chutes
Dynamic analysis
shock
curvature
Air
gas bearings
pitch (inclination)
ramps

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Lim, Geonyup ; Park, Kyoung Su ; Park, No Cheol ; Park, Young Pil ; Lee, Yonghyun ; Chang, Young Bae ; Kim, Cheol soon. / Influence of disk curvature on slider attitude under operational shock conditions for a 2.5-in. hard disk drive. In: Microsystem Technologies. 2016 ; Vol. 22, No. 6. pp. 1315-1324.
@article{81bdcf2dbc1349ce81e785a3def3fe53,
title = "Influence of disk curvature on slider attitude under operational shock conditions for a 2.5-in. hard disk drive",
abstract = "Recently, the number of disks in hard disk drives has increased, and the gap between the slider and disk has decreased. These changes make the contact between the ramp and disk easily. External shock and ramp–disk contact can cause change in disk curvature. Such a change in disk curvature affects the air bearing pressure between the slider and disk. However, disk curvature has not been considered in the previous research. Thus, in this study, we investigated the influence of disk curvature on slider dynamics. Disk curvature was calculated from a transient shock analysis, and was then applied to slider dynamic analysis. As a result, disk curvature reduced the shock performance, by decreasing the minimum flying height and increasing the pitch and roll angle of the slider.",
author = "Geonyup Lim and Park, {Kyoung Su} and Park, {No Cheol} and Park, {Young Pil} and Yonghyun Lee and Chang, {Young Bae} and Kim, {Cheol soon}",
year = "2016",
month = "6",
day = "1",
doi = "10.1007/s00542-015-2735-9",
language = "English",
volume = "22",
pages = "1315--1324",
journal = "Microsystem Technologies",
issn = "0946-7076",
publisher = "Springer Verlag",
number = "6",

}

Influence of disk curvature on slider attitude under operational shock conditions for a 2.5-in. hard disk drive. / Lim, Geonyup; Park, Kyoung Su; Park, No Cheol; Park, Young Pil; Lee, Yonghyun; Chang, Young Bae; Kim, Cheol soon.

In: Microsystem Technologies, Vol. 22, No. 6, 01.06.2016, p. 1315-1324.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of disk curvature on slider attitude under operational shock conditions for a 2.5-in. hard disk drive

AU - Lim, Geonyup

AU - Park, Kyoung Su

AU - Park, No Cheol

AU - Park, Young Pil

AU - Lee, Yonghyun

AU - Chang, Young Bae

AU - Kim, Cheol soon

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Recently, the number of disks in hard disk drives has increased, and the gap between the slider and disk has decreased. These changes make the contact between the ramp and disk easily. External shock and ramp–disk contact can cause change in disk curvature. Such a change in disk curvature affects the air bearing pressure between the slider and disk. However, disk curvature has not been considered in the previous research. Thus, in this study, we investigated the influence of disk curvature on slider dynamics. Disk curvature was calculated from a transient shock analysis, and was then applied to slider dynamic analysis. As a result, disk curvature reduced the shock performance, by decreasing the minimum flying height and increasing the pitch and roll angle of the slider.

AB - Recently, the number of disks in hard disk drives has increased, and the gap between the slider and disk has decreased. These changes make the contact between the ramp and disk easily. External shock and ramp–disk contact can cause change in disk curvature. Such a change in disk curvature affects the air bearing pressure between the slider and disk. However, disk curvature has not been considered in the previous research. Thus, in this study, we investigated the influence of disk curvature on slider dynamics. Disk curvature was calculated from a transient shock analysis, and was then applied to slider dynamic analysis. As a result, disk curvature reduced the shock performance, by decreasing the minimum flying height and increasing the pitch and roll angle of the slider.

UR - http://www.scopus.com/inward/record.url?scp=84970939242&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84970939242&partnerID=8YFLogxK

U2 - 10.1007/s00542-015-2735-9

DO - 10.1007/s00542-015-2735-9

M3 - Article

AN - SCOPUS:84970939242

VL - 22

SP - 1315

EP - 1324

JO - Microsystem Technologies

JF - Microsystem Technologies

SN - 0946-7076

IS - 6

ER -