W K Chan and Yuhong Sun 2003 J. Micromech. Microeng. 13 463 doi:10.1088/0960-1317/13/3/317
W K Chan and Yuhong Sun
Show affiliationsWe develop an analytical model based on kinetic theory of gases and we apply this to thin-film bearings that are frequently encountered in data storage systems. This model incorporates the effects of the higher-order stress tensor and temperature gradient in the governing equations and it can be used for a wide range of Knudsen numbers covering the complete slip regimes. The corresponding modified Reynolds equation is obtained and the flow rate is plotted versus the inverse Knudsen number. Pressure distributions along the air bearing at various Knudsen numbers, bearing numbers, Mach numbers and pitching angles are presented and the load carrying capacities are also obtained. The results are compared with the first-order and second-order slip models. It is observed that the current work is in very good agreement with solutions obtained from the linearized Boltzmann equation and direct simulation Monte Carlo results.
02.50.Ng Distribution theory and Monte Carlo studies
Issue 3 (May 2003)
Received 10 July 2002, in final form 11 December 2002
Published 15 April 2003
W K Chan and Yuhong Sun 2003 J. Micromech. Microeng. 13 463
F Andreozzi et al 2002 J. Phys. A: Math. Gen. 35 L61
Hyun-Jik Oh et al 2006 J. Micromech. Microeng. 16 285
Yu B Golubovskii et al 2006 J. Phys. D: Appl. Phys. 39 1574
S Satake et al 2009 J. Phys.: Conf. Ser. 191 012018
Daesuk Kim et al 2002 Meas. Sci. Technol. 13 L1
W J Walker et al 1974 Phys. Med. Biol. 19 210
Khaled Abdel-Waged 2005 J. Phys. G: Nucl. Part. Phys. 31 739
O B Zaslavskii 2003 Class. Quantum Grav. 20 137
R V Chepulskii 2002 J. Phys.: Condens. Matter 14 L193