Dynamics of the oil-air interface in hard disk drive bearings

We study the dynamics of the oil-air interface (OAI) (also called meniscus) of the fluid dynamic bearings of hard disk drives, particularly when the OAI is located among bearing grooves. We derive a simple analytical expression for the evolution of the OAI of an herringbone-type journal bearing. We...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2005-10, Vol.41 (10), p.2884-2886
Main Authors: Hendriks, F., Tilley, B.S., Billingham, J., Dellar, P.J., Hinch, R.
Format: Article
Language:English
Subjects:
Biology
Cross-disciplinary physics: materials science
rheology
Evolution (biology)
Exact sciences and technology
Fluid dynamic bearing
Fluid dynamics
hard disk drive
Hard disks
Magnetism
Materials science
Mathematics
Other topics in materials science
Petroleum
Physics
Shafts
spindle
Spirals
Stators
USA Councils
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Summary:We study the dynamics of the oil-air interface (OAI) (also called meniscus) of the fluid dynamic bearings of hard disk drives, particularly when the OAI is located among bearing grooves. We derive a simple analytical expression for the evolution of the OAI of an herringbone-type journal bearing. We also report numerical experiments where we include surface tension as a regularization parameter.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2005.855305