Numerical Simulation of Dynamic Loading in Hard Disk Drives

[+] Author and Article Information
T. G. Jeong, D. B. Bogy

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Tribol 115(3), 370-375 (Jul 01, 1993) (6 pages) doi:10.1115/1.2921645 History: Received February 26, 1992; Revised July 01, 1992; Online June 05, 2008


The dynamic loading process in hard disk drives is simulated numerically. The effects of the slider’s loading velocity and initial pitch and roll on its dynamics during loading, as well as on slider-disk contacts, are studied by using the dynamic loading simulator. The air bearing forces due to the squeezing and shearing flows are calculated and their contributions to the dynamics of the slider during loading are investigated. Slider-disk contacts are considered in the numerical simulation through generalized impulse-momentum equations. Slider-disk contact criteria are obtained from the numerical simulation, and they are compared with those obtained from a previous experimental parameter study.

Copyright © 1993 by The American Society of Mechanical Engineers
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