Feasibility of Modeling Air Bearing as Linear Springs in Hard Disk Drive Dynamics Simulation

Author

Liu, Mengjun ; Lin, Wu Zhong ; Yap, Fook Fah ; Ong, Eng Hong

Author_Institution

Data Storage Inst., Singapore, Singapore

Volume

45

Issue

11

fYear

2009

Firstpage

4941

Lastpage

4944

Abstract

A model to predict the shock response of a 1.8-inch hard disk drive (HDD) is developed and validated by experiment. The head-actuator assembly (HAA), spindle disk and flexible base are included in the proposed model. The feasibility of modeling the air bearing as linear springs is investigated for HDD operating shock simulation. Result shows that as far as the vibration of the arm-suspension assembly is concerned, the air bearing between the disk and slider can be modeled by linear springs to speed up the simulation. However, if head/disk interface is concerned, the air bearing should not be modeled as linear springs in the studies of head-disk interface.

Keywords

disc drives; hard discs; springs (mechanical); vibrations; air bearing; arm-suspension assembly; hard disk drive; head-actuator assembly; linear springs; shock response prediction; spindle disk; vibration; Assembly; Electric shock; Equations; Fluid dynamics; Hard disks; Memory; Predictive models; Solid state circuits; Springs; Vibrations; Air bearing; experiment; hard disk drive; shock; simulation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2029404

Filename

5297501