A Computational Study Of Contact Mechanics Between Magnetic Recording Heads And Thin Film Disks
Price
Free (open access)
Transaction
Volume
7
Pages
8
Published
1995
Size
710 kb
Paper DOI
10.2495/CON950511
Copyright
WIT Press
Author(s)
N. Okamoto & Y. Ezawa
Abstract
The tribological phenomena between magnetic head sliders and thin film disks are studied during rest, during start-up and shut-down, and during regular operation using numerical simulations. A theoretical model of stic- tion is first derived based on the surface tension of liquid and capillary condensation. Next, a hybrid method of FEM and BEM is developed in or- der to carry out high-precision microscopic contact stress analysis of a disk covered by multi-layer thin films. An impact simulator based on FEM is then presented which considers the air lubricant film to be an elastic spring system determined from the solution of a compressible Reynolds equation. It is found that these simulators can be used to effectively study the tribol- ogy of s
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