The dynamics of pico sliders is investigated during scratch impact using laser Doppler vibrometry. Airbearing frequencies and damping of the pitch frequency are studied as a function of disk velocity for lubricant thickness values of 1.6nm, 1.0nm and 2.0nm. In addition, time-frequency analysis is used to study transient events during slider-scratch impact. The results indicate that the slider dynamics is not only a function of the design of the air-bearing, but also of the velocity and the characteristics of the lubricant film thickness on the disk surface.
- Tribology Division
Time-Frequency Analysis of Slider Dynamics and the Effect of Lubricant
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Deoras, SK, & Talke, FE. "Time-Frequency Analysis of Slider Dynamics and the Effect of Lubricant." Proceedings of the ASME/STLE 2002 International Joint Tribology Conference. Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology. Cancun, Mexico. October 27–30, 2002. pp. 41-48. ASME. https://doi.org/10.1115/2002-TRIB-0254
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