Numerical simulations of dynamic spacing and asperity contact of a shaped rail slider

Author

Cha, Ellis ; Bogy, David B.

Author_Institution

Dept. of Mech. Eng., California Univ., Berkeley, CA, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3960

Lastpage

3962

Abstract

Numerical simulations of dynamic spacing induced by a measured track topography and asperity contact is presented for the IBM MR-head three rail slider. The factored implicit scheme is modified for use with the shaped rail slider. The results show that the dynamic spacing consists of low frequency components and high frequency components that are due to, respectively, the waviness and the roughness of the track topography. When disk runout is considered and asperity contact is at the outer rail, the response depends on the location of the asperity with respect to the runout. However, when the asperity contact is at the center rail the response is similar at all locations on the runout

Keywords

magnetic heads; magnetoresistive devices; surface topography measurement; MR-head three rail slider; asperity contact; center rail; disk runout; dynamic spacing; factored implicit scheme; measured track topography; roughness; shaped rail slider; track topography; waviness; Disk drives; Equations; Finite difference methods; Frequency; Laboratories; Mesh generation; Numerical simulation; Rails; Shape; Surfaces;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281356

Filename

281356