Passive Vibration Absorption for Extremely High Density Recording

Antonis I. Vakis, Andreas A. Polycarpou

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Abstract

A method is proposed for passive vibration absorption in hard-disk drives during transient events such as the coming into proximity of the rotating disk within the context of thermal fly-height control nanotechnology or external shock. The method uses a nonlinear energy sink at the center of mass of the slider that can absorb energy over a wide range of excitation frequencies. Its feasibility and performance are investigated through a 4-degree-of-freedom dynamic model of the head-disk interface used to predict head-disk clearance and vibrations.
Original languageEnglish
Pages (from-to)4261-4264
Number of pages4
JournalIEEE Transactions on Magnetics
Volume48
Issue number11
DOIs
Publication statusPublished - Nov-2012
Externally publishedYes

Keywords

  • passive vibration absorption
  • nonlinear energy sink
  • magnetic storage
  • head-disk interface

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