Influence of the meniscus force for contact recording head dynamics over a randomly undulating disk surface

Author

Matsuoka, Hiroshige ; Fukui, Shigehisa ; Kato, Takahisa

Author_Institution

Dept. of Appl. Math. & Phys., Tottori Univ., Japan

Volume

39

Issue

2

fYear

2003

fDate

3/1/2003 12:00:00 AM

Firstpage

864

Lastpage

869

Abstract

Dynamic characteristics of a tripad contact recording head over a random undulation disk surface are analyzed considering the surface energy of a thin liquid film lubricant. The head-suspension assembly is described in terms of a three-degrees-of-freedom (3-DOF) model. The configuration of the contact pad, the lubricant, and the disk surface is classified into four regimes, and the equations of motion for each regime considering the meniscus force and the contact force are solved. It is clarified from the simulation and multiple regression results that the surface energy has significant effects on the dynamics of the contact slider.

Keywords

disc drives; force; hard discs; lubrication; magnetic heads; mechanical contact; modelling; surface energy; surface topography; 3-DOF model; HDDs; contact force; contact pad; contact recording head dynamics; contact slider dynamics; disk surface; dynamic characteristics; equations of motion; hard disk drives; head-suspension assembly; meniscus force; randomly undulating disk surface; simulation; surface energy; thin liquid film lubricant; three-degrees-of freedom model; tripad contact recording head; Assembly; Design methodology; Differential equations; Disk recording; Fluid flow; Hard disks; Lubricants; Magnetic heads; Magnetic recording; Solids;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.808942

Filename

1190115