Vibration characteristics of hard disk drives with different internal air pressures

Author

He, Z. ; Venkataramanan, V. ; Ng, C.Y. ; Ong, E.H.

Author_Institution

Data Storage Inst., A*STAR, Singapore

fYear

2009

fDate

14-16 Jan. 2009

Firstpage

1

Lastpage

2

Abstract

Hard disk drive (HDD) performance and reliability at different environments are the interests and concerns of HDD researchers, engineers and consumers. This paper reports the experimental investigation of HDD vibration characteristics with different internal air pressures. Experiments are done by placing the HDD samples inside an altitude chamber and the vibrations are measured using a Laser Doppler vibrometer (LDV) and all-in-one (AIO) motor tester. The disk drive read/write test, vibration spectrum of actuator & suspension tip and disk flutter measurements reveal that the air pressure significantly affects the vibration behaviors of hard disk drive components and the system performances.

Keywords

disc drives; hard discs; reliability; vibrations; all-in-one motor tester; altitude chamber; disk drive read-write test; hard disk drives; internal air pressures; laser doppler vibrometry; reliability; vibration; Actuators; Assembly; Computational fluid dynamics; Disk drives; Hard disks; Helium; Memory; Performance evaluation; Testing; Vibration measurement; Air pressure; fluid dynamics; hard disk drive; vibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific

Conference_Location

Singapore

Print_ISBN

978-9810-82191-3

Type

conf

DOI

10.1109/APMRC.2009.4925356

Filename

4925356