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Study of Contact Bouncing Vibration of Flying Head Slider in Near-Contact Regime

[+] Author Affiliations
Masami Yamane

Toshiba Corporation

Kyosuke Ono

Hitachi, Ltd.

Paper No. WTC2005-64263, pp. 775-776; 2 pages
doi:10.1115/WTC2005-64263
From:
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME

abstract

We experimentally and analytically investigated detailed characteristics of the bouncing vibrations of a flying head slider in a near-contact regime. In the experiment, we found that the hysteresis of touch-down and take-off pressure and the rate of instability become small as the pitch angle increases. Moreover, we measured the 3-dimensional slider motion by using two laser Doppler vibrometers simultaneously and found that the bouncing vibration is a coupled vibration between translation and pitch with a small phase shift. These experimental features can be explained analytically if we consider strong shear force due to lubricant and small amount of microwaviness for the previous two-degrees of freedom slider model with nonlinear air bearing stiffness.

Copyright © 2005 by ASME
Topics: Vibration

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