Study of Shock Response of Operational HDD with Discrete Stiffness/Damping

Han Li,Jinjun Liu,Shigeki Yoshida, S K Yu,B Liu

Singapore（2006）

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摘要

A discrete method is used to determine the local air bearing stiffness/damping at each air bearing pad (positive) and recess region (negative). The finite element model of the HDD with such stiffness/damping in the form of springs is used to study the shock response of disk driver at a half-sinusoidal acceleration shock (1 ms/63 g). Results show the by increasing 5 times of local stiffness on top-trailing pad, the response after 4 ms is changed much due to the response phase is little shifted.

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关键词

damping,disc drives,elastic constants,finite element analysis,hard discs,machine bearings,springs (mechanical),hdd,air bearing discrete stiffness,disk driver,finite element model,half-sinusoidal acceleration shock,springs,finite elements,shock,air bearing,finite element

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