Effect of Disk Clamping Conditions on the Operational Shock Response of Hard Disk Drives

Author

Shu, Dongwei ; Yap, Fook Fah ; Gu, Bin ; Shi, Baojun ; Djamari, Djati Wibowo

Author_Institution

Sch. of Mech. & Aerosp. Eng., Nanyang Technol. Univ., Singapore, Singapore

Volume

47

Issue

7

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

1874

Lastpage

1877

Abstract

The mechanical robustness of HDDs during operational state has become increasingly more important. In this paper the effect of disk clamping conditions on the operational shock response of a hard disk drive is investigated numerically. A finite element model of the hard disk drive is developed in the commercially available finite element package, ANSYS/LSDYNA. The overall model includes the head arm assembly and the disk. The shock responses of the drive under half-sine acceleration pulses are simulated when the disk is subjected to various clamping conditions. It is found that the shock response of the drive decreases with the more tightly clamped disk.

Keywords

clamps; disc drives; finite element analysis; hard discs; vibrations; ANSYS-LSDYNA finite element package; disk clamping conditions; finite element model; hard disk drives; head arm assembly; operational shock response; Atmospheric modeling; Clamps; Electric shock; Finite element methods; Force; Hard disks; Springs; Clamping condition; finite element; hard disk drive; shock response;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2147284

Filename

5928988