A nonlinear dynamic model is developed to analyze the bouncing vibration of a partial contact air bearing slider, which is designed for the areal recording density in hard disk drives of 1 Tbit/in2 or even higher. In this model the air bearing with contact is modeled using the generalized Reynolds equation modified with the Fukui-Kaneko slip correction and a new second order slip correction for the contact situation [1]. The adhesion, contact and friction between the slider and the disk are also considered in the model. It is found that the disk surface roughness, which moves into the head disk interface (HDI) as the disk rotates, excites the bouncing vibrations of the partial contact slider. The frequency spectra of the slider’s bouncing vibration have high frequency components that correspond to the slider-disk contact.
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ASME/STLE 2007 International Joint Tribology Conference
October 22–24, 2007
San Diego, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4810-8
PROCEEDINGS PAPER
Numerical Investigation of Bouncing Vibrations of a Partial Contact Slider
Du Chen,
Du Chen
University of California - Berkeley, Berkeley, CA
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David D. Bogy
David D. Bogy
University of California - Berkeley, Berkeley, CA
Search for other works by this author on:
Du Chen
University of California - Berkeley, Berkeley, CA
David D. Bogy
University of California - Berkeley, Berkeley, CA
Paper No:
IJTC2007-44513, pp. 1089-1091; 3 pages
Published Online:
March 23, 2009
Citation
Chen, D, & Bogy, DD. "Numerical Investigation of Bouncing Vibrations of a Partial Contact Slider." Proceedings of the ASME/STLE 2007 International Joint Tribology Conference. ASME/STLE 2007 International Joint Tribology Conference, Parts A and B. San Diego, California, USA. October 22–24, 2007. pp. 1089-1091. ASME. https://doi.org/10.1115/IJTC2007-44513
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