| Publications [#9162] of Thomas P. Witelski
search www.ams.org.Papers Published
- Thomas P Witelski, F. Hendriks, Stability of Gas Bearing Sliders for Large Bearing Number: Convective Instability of the Tapered slider,
Tribology Transactions, 42, 1, pp. 216-222, (1999)
[ps]
(last updated on 1999/11/30)
Abstract: The dynamics and stability of tapered air bearing sliders
used for
computer hard disk drive magnetic recording heads is
examined using
analytical methods. Lubrication theory is
applied to determine the lift on the slider from the
Reynolds equation
in the limit of large bearing number. The dynamics of the
slider are given by a nonlinear integro-differential
equation. Linear
stability analysis of this model yields valuable insight
into the
behavior of the slider. Most significantly, it is found that
convective
effects can not be neglected and yield either damping or
instability
depending on the slider configuration. This analysis is also
applied to
determine the response of the slider motion due to
deviations in the disk
surface.
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