Design and performance test of comb-shaped clamp/spacer for improvement of recirculation filter efficacy in a hard disk drive

Sung Eun Park; Dae Young Lee; Jae Hong Park; Tae Sik Kang; Jin Gyoo Yoo; Jungho Hwang

doi:10.1109/TMAG.2008.2005520

Design and performance test of comb-shaped clamp/spacer for improvement of recirculation filter efficacy in a hard disk drive

Sung Eun Park, Dae Young Lee, Jae Hong Park, Tae Sik Kang, Jin Gyoo Yoo, Jungho Hwang

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

With the recent increase of the rotational speed of hard disk drives, nanoparticle contamination can cause serious problems including thermal asperity. We designed a comb-shaped clamp and spacer to improve the efficacy of the recirculation filter in the operation of the hard disk drive (HDD). We calculated flow characteristics by a commercial computational fluid dynamics (CFD) code for six cases of the comb-shaped clamp and spacer. The calculation results showed that the outward velocity was the highest when the comb-shape angle was 45°. We measured temporal variations of particle concentration during the operation of the HDD by experiments. Considering the decay rate and the percent clean-up of particle concentration, we found the case of 45° to be the best design.

Original language	English
Article number	4773573
Pages (from-to)	201-205
Number of pages	5
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	1
DOIs	https://doi.org/10.1109/TMAG.2008.2005520
Publication status	Published - 2009 Jan

Bibliographical note

Funding Information:
This work was supported by the Center for Information and Storage Devices and by Samsung Electronics.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2008.2005520

Cite this

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title = "Design and performance test of comb-shaped clamp/spacer for improvement of recirculation filter efficacy in a hard disk drive",

abstract = "With the recent increase of the rotational speed of hard disk drives, nanoparticle contamination can cause serious problems including thermal asperity. We designed a comb-shaped clamp and spacer to improve the efficacy of the recirculation filter in the operation of the hard disk drive (HDD). We calculated flow characteristics by a commercial computational fluid dynamics (CFD) code for six cases of the comb-shaped clamp and spacer. The calculation results showed that the outward velocity was the highest when the comb-shape angle was 45°. We measured temporal variations of particle concentration during the operation of the HDD by experiments. Considering the decay rate and the percent clean-up of particle concentration, we found the case of 45° to be the best design.",

author = "Park, {Sung Eun} and Lee, {Dae Young} and Park, {Jae Hong} and Kang, {Tae Sik} and Yoo, {Jin Gyoo} and Jungho Hwang",

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AU - Kang, Tae Sik

AU - Yoo, Jin Gyoo

AU - Hwang, Jungho

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Design and performance test of comb-shaped clamp/spacer for improvement of recirculation filter efficacy in a hard disk drive

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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