mirage

Aerodynamic pressure fluctuations associated with flow-induced vibration of the head gimbals assembly inside a hard disk drive

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Aerodynamic pressure fluctuations associated with flow-induced vibration of the head gimbals assembly inside a hard disk drive

Show simple item record

dc.contributor.author Min, Hequn
dc.contributor.author Huang, Xiaoyang
dc.contributor.author Zhang, Qide
dc.date.accessioned 2012-01-06T07:54:15Z
dc.date.available 2012-01-06T07:54:15Z
dc.date.copyright 2011
dc.date.issued 2012-01-06
dc.identifier.citation Min, H., Huang, X., & Zhang, Q. (2011). Aerodynamic pressure fluctuations associated with flow-induced vibration of the head gimbals assembly inside a hard disk drive. IEEE Transactions on Magneticsm, 48(1), 101-106.
dc.identifier.issn 0018-9464
dc.identifier.uri http://hdl.handle.net/10220/7453
dc.description.abstract This paper presents an experimental investigation and numerical simulation on the spectrum-spatial characteristics of aerodynamic pressure fluctuations around the head gimbals assembly (HGA) in a working hard disk drive (HDD). The pressure fluctuations are measured through tiny holes on the HDD top cover above the HGA. The positioning error signal and servo system sensitivity in the working HDD are measured as well to evaluate the slider off-track vibration. Comparisons between the spectra of pressure fluctuations and the slider off-track vibration show that, the ressure fluctuations around the HGA are highly associated with the slider off-track vibration in terms of principal peaks in the spectra, especially at 1.83 kHz and 2.54 kHz. The results also show that the spatial coherence of pressure fluctuation around the HGA remains high at frequencies around the principal peaks in the spectra, which has been further confirmed by the numerical simulation based on a two-dimensional large eddy simulation model. It is concluded that the flow-induced HGA vibrations in an HDD can be detected and evaluated through the pressure fluctuations by a sensor around the HGA.
dc.format.extent 7 p.
dc.language.iso en
dc.relation.ispartofseries IEEE transactions on magnetics
dc.rights © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [DOI: http://dx.doi.org/10.1109/TMAG.2011.2169419 ]
dc.subject DRNTU::Engineering::Mechanical engineering::Fluid mechanics
dc.title Aerodynamic pressure fluctuations associated with flow-induced vibration of the head gimbals assembly inside a hard disk drive
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1109/TMAG.2011.2169419
dc.description.version Accepted version
dc.identifier.rims 160037

Files in this item

Files Size Format View
TMAG-11-06-0317.R1_FinalVersion.pdf 981.0Kb PDF View/Open

This item appears in the following Collection(s)

Show simple item record

Statistics

Total views

All Items Views
Aerodynamic pressure fluctuations associated with flow-induced vibration of the head gimbals assembly inside a hard disk drive 398

Total downloads

All Bitstreams Views
TMAG-11-06-0317.R1_FinalVersion.pdf 253

Top country downloads

Country Code Views
United States of America 70
China 59
Singapore 48
Russian Federation 9
Japan 8

Top city downloads

city Views
Mountain View 58
Singapore 47
Beijing 39
Redwood City 5
Guangzhou 4