Title :
Nonlinear dynamic effects at the head disk interface
Author :
Knigge, B. ; Talke, F.E.
Author_Institution :
Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
Abstract :
In this paper, we report slider lubricant interaction phenomena as a function of lubricant thickness and disk velocity on smooth disks. Airbearing vibrations as well as torsional and bending mode vibrations of pico sliders were investigated using a high bandwidth laser Doppler vibrometer (LDV) and a high bandwidth acoustic emission (AE) system.
Keywords :
lubrication; magnetic disc storage; magnetic heads; vibrations; acoustic emission; air bearing; bending mode; head-disk interface; laser Doppler vibrometry; nonlinear dynamics; slider-lubricant interaction; torsional mode; vibration; Atomic force microscopy; Atomic measurements; Bandwidth; Data acquisition; Frequency; Friction; Lubricants; Rough surfaces; Signal to noise ratio; Surface roughness;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-6254-3
DOI :
10.1109/APMRC.2000.898924
