DocumentCode
1078877
Title
Washboard effect at head-disk interface
Author
Dai, Qing ; Hendriks, Ferdinand ; Marchon, Bruno
Author_Institution
San Jose Res. Center, CA, USA
Volume
40
Issue
4
fYear
2004
fDate
7/1/2004 12:00:00 AM
Firstpage
3159
Lastpage
3161
Abstract
This paper presents experimental investigations of the lubricant ripple formation when the slider flies on the track. We quantified the impact of ripple amplitude on slider flying height modulation (FHM). Comparisons were made between experimental observations and a previous modeling study where rippling was shown to be caused by slider-induced air shear modulation. We confirmed our model predictions and demonstrated conditions under which ripple formation is enhanced or reduced.
Keywords
lubricants; magnetic heads; magnetic recording; vibration measurement; air shear modulation; flying height modulation; flying slider; head-disk interface; laser Doppler vibrometer; lubricant ripple formation; ripple amplitude; slider dynamics; washboard effect; Amplitude modulation; Frequency; Helium; Lubricants; Mathematical model; Physics; Predictive models; Stress; Vibrometers; Viscosity; LDV; Laser Doppler Vibrometer; lubricant ripples; slider dynamics; washboard effect;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2004.829827
Filename
1325762
Link To Document