NDLI: Improved Analysis of Unstable Bouncing Vibration and Stabilizing Design of Flying Slider in Near-Contact Regime

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Ono, Kyosuke Yamane, Masami
Copyright Year	2005
Abstract	We proposed a design method of a flying head slider that can suppress the bouncing vibration in a near-contact regime, based on parametric study using an improved slider and contact models. At first, we numerically calculated the characteristics of contact force and adhesive force between air bearing pad and disk surface under the current small roughness conditions and found that the contact characteristics can be modeled by constant contact stiffness, a constant adhesion force and the separations of beginning and end of contact. Next we numerically computed the slider dynamics of a 2-DOF slider model by using these contact characteristics and nonlinear air-bearing stiffness. As a result, we could get the self-excited bouncing vibration whose general characteristics are more similar to the experimented results compared to our previous study. Parametric study shows that the frictional coefficient, attractive force and contact stiffness should be decreased and front and rear air-bearing stiffness and ratio of rear to front air-bearing stiffness should be increased in order to realize a stable flying slider in a smallest possible spacing. Moreover, we elucidated the effect of micro-waviness on the self-excited vibration of the slider.
Sponsorship	Tribology Division
Starting Page	713
Ending Page	714
Page Count	2
File Format	PDF
ISBN	0791842010
DOI	10.1115/WTC2005-63612
e-ISBN	079183767X
Volume Number	World Tribology Congress III, Volume 1
Conference Proceedings	World Tribology Congress III
Language	English
Publisher Date	2005-09-12
Publisher Place	Washington, D.C., USA
Access Restriction	Subscribed
Subject Keyword	Design Vibration Adhesives Design methodology Dynamics (mechanics) Disks Stiffness Air bearings Surface roughness Adhesion
Content Type	Text
Resource Type	Article

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