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Title of Journal: J Mech Sci Technol

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Abbravation: Journal of Mechanical Science and Technology

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Korean Society of Mechanical Engineers

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DOI

10.1007/bf01160894

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1976-3824

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Vibration characteristics of computer stacked disk

Authors: ShyhChin Huang KaoAn Lin
Publish Date: 2008/05/31
Volume: 22, Issue: 3, Pages: 460-468
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Abstract

A stacked multidisk with read/write head assembly was investigated The interference of head assembly on the spinning disks was modeled by stationary springs intervening between disks The receptance method was then applied to join the spinning disks and the stationary springs A general recursive equation for natural frequency of a diskhead system was derived Numerical examples followed for the cases of 3 to 6 stacked disks The results showed that even for weak spring coupling the changes of mode shapes were very significant and the changes of natural frequencies were slight The effects of spring stiffness location and disk spinning speed were examined as well The spinning speed was seen to pull the frequency loci to pass through the crossings of a single disk’s frequency curves and there existed a curveveering phenomenon

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