Analysis of structurally transmitted vibration of HDD in notebook computer

Author

Mou, J.Q. ; Lai, Fang-I ; See, I.B.L. ; Lin, W.Z.

Author_Institution

Data Storage Inst., A*STAR, Singapore, Singapore

fYear

2012

fDate

Oct. 31 2012-Nov. 2 2012

Firstpage

1

Lastpage

2

Abstract

Characteristics of structurally transmitted HDD vibrations induced by different built-in vibration sources, including speakers, fans and CD/DVD drive in notebook PCs are examined. It is found that at frequencies above 1000 Hz, the structurally transmitted HDD vibrations are dominated by the vibrations induced by the speakers. It is concluded that, in general, soft chassis design and soft HDD mounting are helpful to suppress the structurally transmitted vibration of HDD at frequencies above 1000 Hz in notebook PC. Furthermore, the HDD soft mounting modes should be kept away from the low order harmonics of the built-in fans and CD/DVD drive.

Keywords

disc drives; fans; hard discs; modal analysis; notebook computers; vibrations; CD drive; DVD drive; HDD soft mounting modes; built-in fans; built-in vibration sources; low order harmonics; notebook PC; notebook computer; soft chassis design; speakers; structurally transmitted HDD vibration analysis; Analytical models; Atmospheric modeling; DVD; Disk drives; Finite element methods; Frequency control; Vibrations; FEM; Hard disk drive (HDD); fan; notebook PC; speaker; structurally transmitted vibration;

fLanguage

English

Publisher

ieee

Conference_Titel

APMRC, 2012 Digest

Conference_Location

Singapore

Print_ISBN

978-1-4673-4734-1

Type

conf

Filename

6407571