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RESEARCH PAPERS

Slider Air Bearing Design Enhancements for High Speed Flexible Disk Recording

[+] Author and Article Information
James White

6017 Glenmary Road Knoxville, TN 37919

J. Tribol 127(3), 522-529 (Jun 13, 2005) (8 pages) doi:10.1115/1.1843151 History: Received June 26, 2003; Revised May 11, 2004; Online June 13, 2005
Copyright © 2005 by ASME
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References

Pelech,  I., and Shapiro,  A. H., 1964, “Flexible Disk Rotating on a Gas Film Next to a Wall,” ASME J. Appl. Mech., 31, pp. 577–584.
Benson,  R. C., and Bogy,  D. B., 1978, “Deflection of a Very Flexible Spinning Disk Due to a Stationary Transverse Load,” ASME J. Appl. Mech., 45, pp. 636–642.
Adams,  G. G., 1980, “Procedures for the Study of the Flexible-Disk to Head Interface,” IBM J. Res. Dev., 24, pp. 512–517.
White,  J. W., 1984, “On the Design of Low Flying Heads for Floppy Disk Magnetic Recording,” Tribol. Mech. Magn. Storage Syst.,1, ASLE SP-16, pp. 126–131.
White,  J. W., 1987, “A Study of Low Flying Height Heads for Stretched Surface Recording,” Tribol. Mech. Magn. Storage Syst.,4, STLE SP-22, pp. 12–20.
Adams,  G. G., and Averell,  J. P., 1988, “Simulation of the Floppy-Disk/Head Interface,” Tribol. Mech. Magn. Storage Syst.,5, STLE SP-25, pp. 135–141.
Carpino,  M., 1991, “The Effect of Initial Curvature in a Flexible Disk Rotating Near a Flat Plate,” ASME J. Tribol., 113, pp. 355–360.
Wu,  R. Y., and Adams,  G. G., 1997, “The Effect of Disk Warpage/Skew on the Deflection and Vibration of a Flexible Disk Spinning Above a Baseplate and in Contact With a Point-Head,” ASME J. Tribol., 119, pp. 64–70.
Jones, D. E., Schick, B. R., and Thayne, M. S., 1997, “Magnetic Read/Write Head Assembly Configured With Bleed Slots Passing Through Rails to Stabilize Flexible Medium While Attaining Low Fly Heights With Respect Thereto,” US Patent No. 5,636,085.
White, J. W., and Nigam, A. K., 1990, “Non-Contact Magnetic Head Assembly for a Flexible Medium Disk Drive,” US Patent No. 4,974,106.
White, J. W., 2000, “Shaped Rail Opposed Slider Air Bearing Configuration for Increased Flying Height Control of Magnetic Heads at Elevated Flexible Disk Speeds,” US Patent No. 6,023,393.
Nigam, A., and White, J. W., 1999, “Metal Foil Disk for High Areal Density Recording in Environments of High Mechanical Shock,” US Patent No. 5,968,627.

Figures

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The slider/disk interface
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Asymmetric sliders: (a) straight rail, (b) flared rail
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Dimensionless flying height contours for side 0 of asymmetric straight rail sliders
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Dimensionless flying height contours for side 1 of asymmetric straight rail sliders
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Disk deflection for asymmetric straight rail sliders
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Reference sliders: (a) hard disk, (b) flexible disk
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Flying height response of negative pressure hard disk slider to vertical impulse. Initial slider impulse velocity=−5 cm/s.
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Flying height response for side 0 of asymmetric straight rail sliders to vertical impulse. Initial side 0 impulse velocity=−5 cm/s.
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Short time flying height response of asymmetric straight rail sliders to vertical impulse. Initial side 0 impulse velocity=−5 cm/s.
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Pressure response of asymmetric straight rail sliders to vertical impulse. Initial side 0 impulse velocity=−5 cm/s.
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Dimensionless flying height contours for side 0 of asymmetric flared rail sliders
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Flying height response for side 0 of asymmetric flared rail sliders to vertical impulse
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Comparison of side 0 short time response of asymmetric flared rail sliders and symmetric reference sliders for three different side 0 vertical impulse magnitudes
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Comparison of side 0 short time response of asymmetric flared rail sliders and symmetric reference sliders for three different side 0 roll impulse magnitudes

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