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Proceedings Paper

Vibration suppression of HDD spindle-disk system using piezoelectric shunt damping
Author(s): Seung-Bok Choi; Soo-Cheol Lim; Young-Pil Park
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Paper Abstract

This work presents the feasibility of the piezoelectric shunt damping for vibration suppression of the rotating HDD disk-spindle system. A target vibration mode which significantly restricts the recording density increment of the drive is determined through modal analysis and a piezoelectric bimorph is designed to suppress unwanted vibration. The shunt circuit is constructed by considering two-dimensional electromechanical coupling coefficient of the shunted drive. In addition, optimal design process using sensitivity analysis is undertaken in order to improve the shunt damping of the system. The effectiveness of the proposed methodology is verified through experimental implementation by observing the displacement transmissibility of the system in frequency domain.

Paper Details

Date Published: 17 May 2005
PDF: 9 pages
Proc. SPIE 5764, Smart Structures and Materials 2005: Smart Structures and Integrated Systems, (17 May 2005); doi: 10.1117/12.597011
Show Author Affiliations
Seung-Bok Choi, Inha Univ. (South Korea)
Soo-Cheol Lim, Inha Univ. (South Korea)
Young-Pil Park, Yonsei Univ. (South Korea)

Published in SPIE Proceedings Vol. 5764:
Smart Structures and Materials 2005: Smart Structures and Integrated Systems
Alison B. Flatau, Editor(s)

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