A Computational Study Of Contact Mechanics

Between Magnetic Recording Heads And Thin

Film Disks

N. Okamoto; Y. Ezawa

doi:10.2495/CON950511

A Computational Study Of Contact Mechanics Between Magnetic Recording Heads And Thin Film Disks

Price

Free (open access)

Transaction

WIT Transactions on Engineering Sciences

Volume

Pages

Published

1995

Size

710 kb

Paper DOI

10.2495/CON950511

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

Keywords

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Code

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