Induced Micro-Variations in Hydrodynamic Bearings

[+] Author and Article Information
Charles Baroud, Ilene Busch-Vishniac, Kristin Wood

Department of Mechanical Engineering, The University of Texas MC C2200, Austin, TX 78712-1043

J. Tribol 122(3), 585-589 (Aug 10, 1999) (5 pages) doi:10.1115/1.555405 History: Received March 29, 1999; Revised August 10, 1999
Copyright © 2000 by ASME
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Schematic of novel MEMS array
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Masks used in previous experiments. Mask 1 is flat, while masks 2 and 3 have 50 μm grooves etched in them, extending all the way across only in mask 2.
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Experimental results of thrust load versus film thickness: fixed surface features on a experimental slider bearing. From Masser 9.
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The thrust and drag differentials for mask 1. The “x” corresponds to the case when Xmin=75 μm and Hx=2.0. “o” corresponds to Xmin=100 μm and Hx=2.0. “+” corresponds to Xmin=75 μm and Hx=1.5. “* ” corresponds to Xmin=100 μm and Hx=1.5.
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The thrust and drag differentials for mask 2, using the same symbols as for Fig. 6
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Schematic cut through the mask showing the tape deformation under pressure. The fluid flow is from the left to the right in this figure.
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Bearing experimental assembly showing our experimental setup




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