A new lubrication equation for ultra-thin gas film in hard disk drives |
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Authors: | Peng Yongqing Xinchun Lu Jianbin Luo |
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Institution: | 1.State Key Laboratory of Tribology,Tsinghua University,Beijing,China |
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Abstract: | To overcome the complicated and time-consuming difficulties of current models, a new lubrication equation based on boundary velocity slip model for solving the ultra-thin film gas lubrication in hard disk drives is proposed by adopting the nanoscale effect function, N p. The present model is easy to calculate and applicable at nanoscale. The results of numerical calculations indicate that the present model produces a close approximation to that of the exact Boltzmann model. |
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