Static Characteristics of Air Bearing Film with the Linear Accommodation Coefficients in HDDs

Hui Yu; B.J. Shi; Jia Dong Ji

doi:10.4028/www.scientific.net/AMR.538-541.146

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Static Characteristics of Air Bearing Film with the Linear Accommodation Coefficients in HDDs

Abstract:

Based on various combinations of ACs of the slider and disk, the influence of ACs, were investigated by researchers. In the present paper, the static characteristics of air bearing film with the linear ACs are investigated. Pressure distribution and shear stress distribution are obtained by solving the free molecular MGL equation numerically by a mesh-free method, called Least square finite difference (LSFD). The simulation results show that with different ACs the shear stress and pressure are different, and on shear stress the influence of AC of slider is more obvious than that of disk in close to disk read-and-write head.