Numerical Hard Disk Drive Seek Acoustic Transfer Analysis and Experimental Validation

Author

Gao, F. ; Lin, W.Z. ; Lee, C.W. ; Mou, J.Q. ; Ong, E.H.

Author_Institution

Data Storage Inst., Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore

Volume

45

Issue

11

fYear

2009

Firstpage

4945

Lastpage

4949

Abstract

Seek acoustics in a hard disk drive (HDD) contributes significantly to overall HDD acoustic level. HDD seek acoustics is mainly caused by the seek current and the HDD mechanical structure when excited. Seek acoustic transfer function (ATF) approach has been successfully employed to give quick prediction of HDD seek acoustic noise with different mechanical structure designs and seek current profiles. In this paper, a numerical HDD seek ATF is developed based on finite element method (FEM) and boundary element method (BEM) to generate a model to predict the seek acoustics. The numerical results agree well with experimental results. The effects of HDD temperature and seek length on seek ATF also have been experimentally studied.

Keywords

acoustic noise; disc drives; finite element analysis; hard discs; transfer functions; ATF approach; BEM application; FEM application; HDD mechanical structure design; HDD seek acoustic noise; HDD temperature; boundary element method; finite element method; numerical hard disk drive seek acoustic transfer analysis; seek acoustic transfer function; seek current; Acoustic noise; Actuators; Computer aided manufacturing; Finite element methods; Hard disks; ISO standards; Magnetic noise; Noise level; Temperature distribution; Transfer functions; Acoustic transfer function; hard disk drive; seek acoustics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2029405

Filename

5297547