Design Modifications to Improve the Antishock Performance of a Stamped Base for a 2.5-in HDD

Geonyup Lim; Seokhwan Kim; No Cheol Park; Kyoung Su Park; Hyun Chul Lee; Ju Ho Kim

doi:10.1109/TMAG.2014.2298410

Design Modifications to Improve the Antishock Performance of a Stamped Base for a 2.5-in HDD

Geonyup Lim, Seokhwan Kim, No Cheol Park, Kyoung Su Park, Hyun Chul Lee, Ju Ho Kim

Department of Mechanical Engineering

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

5 Citations (Scopus)

Abstract

This paper presents a modified design for a stamped base for a 2.5-in hard disk drive (HDD). A stamped base is a thinner thickness and lower stiffness than a die-casting base. To improve shock performance of the stamped base, the finite element (FE) model of the HDD is constructed. Then, the FE model was verified by modal analysis. Drop test was performed to confirm the shock simulation model. Parametric analysis was used to identify the key parameters for the shock performance which were the base thickness, rib shape, number of ribs, and reinforcement. The correlation between the relative displacement and natural frequency of the HDD was investigated for each parameter. The dominant parameter was identified and applied to the FE model of the stamped base. The modified stamped-base model was then evaluated under nonoperational shock conditions.

Original language	English
Article number	6851257
Journal	IEEE Transactions on Magnetics
Volume	50
Issue number	7
DOIs	https://doi.org/10.1109/TMAG.2014.2298410
Publication status	Published - 2014 Jul 1

Bibliographical note

Publisher Copyright:
© 1965-2012 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2014.2298410

Cite this

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title = "Design Modifications to Improve the Antishock Performance of a Stamped Base for a 2.5-in HDD",

abstract = "This paper presents a modified design for a stamped base for a 2.5-in hard disk drive (HDD). A stamped base is a thinner thickness and lower stiffness than a die-casting base. To improve shock performance of the stamped base, the finite element (FE) model of the HDD is constructed. Then, the FE model was verified by modal analysis. Drop test was performed to confirm the shock simulation model. Parametric analysis was used to identify the key parameters for the shock performance which were the base thickness, rib shape, number of ribs, and reinforcement. The correlation between the relative displacement and natural frequency of the HDD was investigated for each parameter. The dominant parameter was identified and applied to the FE model of the stamped base. The modified stamped-base model was then evaluated under nonoperational shock conditions.",

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AU - Lee, Hyun Chul

AU - Kim, Ju Ho

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Design Modifications to Improve the Antishock Performance of a Stamped Base for a 2.5-in HDD

Abstract

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