DocumentCode
3392214
Title
Dynamic contact with friction of an ultra-low flying head-disk interface with thermal protrusion
Author
Vakis, A.I. ; Lee, S.-C. ; Polycarpou, A.A.
Author_Institution
Dept. of Mech. Sci. & Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL
fYear
2009
fDate
14-16 Jan. 2009
Firstpage
1
Lastpage
2
Abstract
A dynamic two-degree-of-freedom contact with friction model of the head-disk interface (HDI) is presented accounting for slider thermal protrusion and its influence on the HDI dynamics. Using this model, which includes roughness, the applied power to the thermal protrusion is calculated that leads to minimum flying-height modulations. The model predictions are verified by drive-level experimental results.
Keywords
disc drives; friction; hard discs; magnetic heads; applied power; dynamic two-degree-of-freedom contact; flying-height modulations; friction model; hard-disk drives; slider thermal protrusion; ultralow flying head-disk interface; Ellipsoids; Feedback; Friction; Geometry; Magnetic memory; Predictive models; Rough surfaces; Solid modeling; Surface roughness; Tellurium; dynamic model; head-disk interface; magnetic storage; thermal protrusion;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetic Recording Conference, 2009. APMRC '09. Asia-Pacific
Conference_Location
Singapore
Print_ISBN
978-9810-82191-3
Type
conf
DOI
10.1109/APMRC.2009.4925390
Filename
4925390
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