Effects of suspension limiters on the dynamic load/unload process: numerical simulation

Author

Zeng, Qing-Hua ; Bogy, David B.

Author_Institution

Comput. Mech. Lab., California Univ., Berkeley, CA, USA

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2490

Lastpage

2492

Abstract

Specifically designed suspensions with limiters are currently used in disk drives with dynamic load/unload (L/UL) mechanisms. We simulate the L/UL process of air bearing sliders mounted on this kind of suspension. A simplified suspension model is presented, two pico-sliders are designed and simulated, and the effects of the suspension parameters related to the limiters are investigated. We find that the air bearing design, unload speed, and the limiter parameters (gap, offset and stiffness) significantly affect the unloading process. A smaller gap, medium stiffness and speed, and a properly designed offset are required for good unload performance. There is no effect of the limiters on the loading process

Keywords

disc drives; dynamics; force; modelling; numerical analysis; air bearing design; air bearing sliders; dynamic load/unload process; limiter gap; limiter offset; limiter parameters; limiter stiffness; magnetic disk drives; numerical simulation; pico-sliders; suspension limiters; suspension model; suspension parameters; unload speed; Burnishing; Computational modeling; Damping; Disk drives; Equations; Laboratories; Mathematical model; Mechanical engineering; Numerical simulation; Springs;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800868

Filename

800868