Cantilever dynamic vibration absorber for reducing optical disk drive vibration

Seungho Lim; Kyungtae Kim; Ungrae Cho; No Cheol Park; Young Pil Park; Kyoung Su Park; Wook Young Soh

doi:10.1109/TMAG.2009.2016144

Cantilever dynamic vibration absorber for reducing optical disk drive vibration

Seungho Lim, Kyungtae Kim, Ungrae Cho, No Cheol Park, Young Pil Park, Kyoung Su Park, Wook Young Soh

Department of Mechanical Engineering

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

This research explores the design of a dynamic vibration absorber (DVA) using a cantilever beam with tip mass. Compared to a conventional DVA using a rubber bobbin, the proposed DVA isolates vibrations more effectively due to the low damping properties of its structure, which are the principal reason for its excellent anti-vibration performance near the anti-resonance frequency. This low damping decreases the harmonic response at the rotational frequency of the disk. To design the proposed DVA, the dynamic characteristics of the optical disk drive were represented with lumped parameter and finite element models. The dimensions of the beam were tuned to reduce the vibration in multiple axes based on this model. Tolerance analysis were performed so the drive would be robust against normal dimension variance due to the manufacturing process, and the variation in the dynamic characteristics with respect to the pickup position was investigated. The anti-vibration performance of the DVA was also measured experimentally.

Original language	English
Article number	4816018
Pages (from-to)	2198-2201
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.2009.2016144
Publication status	Published - 2009 May

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Lim, S., Kim, K., Cho, U., Park, N. C., Park, Y. P., Park, K. S., & Soh, W. Y. (2009). Cantilever dynamic vibration absorber for reducing optical disk drive vibration. IEEE Transactions on Magnetics, 45(5), 2198-2201. [4816018]. https://doi.org/10.1109/TMAG.2009.2016144

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abstract = "This research explores the design of a dynamic vibration absorber (DVA) using a cantilever beam with tip mass. Compared to a conventional DVA using a rubber bobbin, the proposed DVA isolates vibrations more effectively due to the low damping properties of its structure, which are the principal reason for its excellent anti-vibration performance near the anti-resonance frequency. This low damping decreases the harmonic response at the rotational frequency of the disk. To design the proposed DVA, the dynamic characteristics of the optical disk drive were represented with lumped parameter and finite element models. The dimensions of the beam were tuned to reduce the vibration in multiple axes based on this model. Tolerance analysis were performed so the drive would be robust against normal dimension variance due to the manufacturing process, and the variation in the dynamic characteristics with respect to the pickup position was investigated. The anti-vibration performance of the DVA was also measured experimentally.",

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