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Passive Vibration Absorption for Extremely High Density Recording

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2 Author(s)
Vakis, A.I. ; Dept. of Electr. & Comput. Eng., Univ. of Cyprus, Nicosia, Cyprus ; Polycarpou, A.A.

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.

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Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )