Probability model for slider-disk interaction

Citation
W. Hua et al., Probability model for slider-disk interaction, J INF S P S, 1(3), 1999, pp. 273-280
Citations number
15
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
JOURNAL OF INFORMATION STORAGE AND PROCESSING SYSTEMS
ISSN journal
10998047 → ACNP
Volume
1
Issue
3
Year of publication
1999
Pages
273 - 280
Database
ISI
SICI code
1099-8047(199907)1:3<273:PMFSI>2.0.ZU;2-6
Abstract
One of the most important methods to increase the bit density is the decrem ent of head-disk spacing. Recently, the investigation of slider-disk contac t issues is becoming more and more important because of the continual reduc tion of the head-disk spacing. This paper develops a probability model to c haracterize the roughness of the air-bearing surface of a slider and the ro ughness of a disk surface. Based on the probability theory, the Boltzmann e quation is modified with the average thin-film theory, and the slider-disk contact force is calculated by a power law. The tripad slider is selected f or the simulation under various disk speeds, and the air-bearing force and the contact force are studied in detail. It is observed that the simulation results are well coordinated with the experimental results on the Contact start-stop tester and on the dynamic flying height tester.