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RESEARCH PAPERS

Torque Measurements of Corotating Disks in an Axisymmetric Enclosure

[+] Author and Article Information
A. J. Hudson, P. A. Eibeck

Mechanical Engineering Department, University of California at Berkeley, Berkeley, CA 94720

J. Fluids Eng 113(4), 648-653 (Dec 01, 1991) (6 pages) doi:10.1115/1.2926529 History: Received October 08, 1990; Online May 23, 2008

Abstract

Torque measurements, which can be related to viscous dissipation, were made in a simulated disk drive consisting of a single or multiple corotating disk stack enclosed in an axisymmetric shroud. The effects of rotational velocity, axial and radial spacing, and the position and thickness of simulated read/write arms between disks on torque were studied. Correlations are presented to describe the results of the unobstructed cases and the cases with the read/write arms at their innermost position, and a method is introduced to calculate the torque at intermediate arm positions.

Copyright © 1991 by The American Society of Mechanical Engineers
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