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Characteristics of Axial and Radial Surface Tension Sealing Structures for HDD FDB Spindles

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2 Author(s)
Ming Feng ; School of Mechanical Engineering,, University of Science and Technology Beijing,, Beijing , China ; Chen Li

This paper presents the characteristics of the axial and radial surface tension sealing structures. Based on the 6-DOF rotor-bearing coupled dynamic analysis, the movement of the shaft relative to the sleeve during and immediately after a shock is calculated. By use of the finite volume method, volume of fluid, K-e turbulence model and dynamic mesh technique, the anti-shock capacity and anti-centrifugal force capacity of the two structures are investigated. The results are significant for optimal design of the sealing structure in hard disk drive fluid dynamic bearings spindles.

Published in:

IEEE Transactions on Magnetics  (Volume:49 ,  Issue: 6 )