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An Analysis of Dynamic Characteristics of Air-Lubricated Slider Bearing by Using Perturbation Method
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 Title & Authors
An Analysis of Dynamic Characteristics of Air-Lubricated Slider Bearing by Using Perturbation Method
Gang, Tae-Sik; Choe, Dong-Hun; Jeong, Tae-Geon;
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 Abstract
This study presents a method for determining bearing stiffness and damping coefficients of air-lubricated slider bearing, and shows influences of air-bearing surface geometry(recess depth, crown an d pivot location) on flying attitude and dynamic characteristics. To derive the dynamic lubrication equation, the perturbation method is applied to the generalized lubrication equation which based on linearized Boltzmann equation. The generalized lubrication equation and the dynamic lubrication equation are converted to a control volume formulation, and then, the static and dynamic pressure distributions are calculated by finite difference method. The recess depth and crown of the slider show significantly influence on flying attitude and dynamic characteristics comparing with those of pivot location.
 Keywords
Air-Lubricated Slider Bearing;Bearing Damping;Bearing Stiffness;Control Volume Method;Finit Difference Method;Perturbation Method;
 Language
Korean
 Cited by
 References
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