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RESEARCH PAPERS

Elastohydrodynamic Analysis of Head to Flexible Disk Interface Phenomena

[+] Author and Article Information
J. P. Licari

IBM Corporation, Information Systems Division, Highway 52 & Northwest 37th Street, Rochester, Minn. 55901

F. K. King

Datapoint Corporation, Peripheral Operation Division, 686 West Maud Avenue, Sunnyvale, Calif. 94086

J. Appl. Mech 48(4), 763-768 (Dec 01, 1981) (6 pages) doi:10.1115/1.3157730 History: Received December 01, 1980; Revised April 01, 1981; Online July 21, 2009

Abstract

The finite-element and finite-difference techniques are used to develop an analytical model which describes the interaction between a magnetic recording head and a flexible disk. The finite-element approach is used to describe disk deformation. Both disk bending stiffness and stiffness effects due to disk rotation are included. The finite-difference scheme is used to solve the Reynold’s or lubrication equation which describes the flow interaction between head and disk. The procedure used to couple the two numerical models into a complete head-to-disk interface simulator is outlined. Accuracy of the simulator is verified experimentally, and results of studies showing the sensitivities of various parameters are given.

Copyright © 1981 by ASME
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