In this paper, a new numerical scheme to analyze the characteristics of the nanometer gas film in hard disk drive is presented based on the modified Reynolds equation with the FK-Boltzmann modified modeling. It is well known that the great high bearing number can lead to divergence in the conventional finite difference method. As to the existence of the variable pressure in the Couette flow terms in the equation, it was proposed to discretize equation by taking the Couette flow term as the dominating ones in iterative process. In addition, a special treatment by using weighting flow factor for the abrupt change of film thickness was proposed. It was presented that the result using this new scheme was close to the analytic solution. Using this new method to analyze several sliders, the pressure distribution of every slider can be successfully obtained with well convergence property, which indicated that this new scheme is a correct and stable numerical method.
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STLE/ASME 2008 International Joint Tribology Conference
October 20–22, 2008
Miami, Florida, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4336-9
PROCEEDINGS PAPER
Numerical Analysis on Lubrication Characteristics of Nanometer Gas Film in Hard Disk Drive Available to Purchase
Hua-Ping Yao,
Hua-Ping Yao
South China University of Technology, Guangzhou, China
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Yan-Hua Wu,
Yan-Hua Wu
South China University of Technology, Guangzhou, China
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Huang Ping
Huang Ping
South China University of Technology, Guangzhou, China
Search for other works by this author on:
Hua-Ping Yao
South China University of Technology, Guangzhou, China
Yan-Hua Wu
South China University of Technology, Guangzhou, China
Huang Ping
South China University of Technology, Guangzhou, China
Paper No:
IJTC2008-71137, pp. 685-687; 3 pages
Published Online:
June 5, 2009
Citation
Yao, H, Wu, Y, & Ping, H. "Numerical Analysis on Lubrication Characteristics of Nanometer Gas Film in Hard Disk Drive." Proceedings of the STLE/ASME 2008 International Joint Tribology Conference. STLE/ASME 2008 International Joint Tribology Conference. Miami, Florida, USA. October 20–22, 2008. pp. 685-687. ASME. https://doi.org/10.1115/IJTC2008-71137
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