Limiting Stiffness and Damping Coefficients of Foil Bearing
ASME Conference Proceedings
The limiting values of load capacity, stiffness and damping coefficients for a foil bearing are presented. The necessary conditions for high bearing numbers (journal operating at high speed) are obtained by simplifying the compressible Reynolds equation. Linearized stiffness and damping coefficients are obtained using infinitesimal perturbation method. Results of load capacity, stiffness and damping coefficients, for foil bearing are compared with those obtained for a rigid gas journal bearing. The limiting values of dynamic characteristics for a foil bearing are constant for all eccentricity ratios. ©2005 ASME
Sawicki, J.T., and Rao, N., Limiting Stiffness and Damping Coefficients of Foil Bearing, ASME Paper DETC2005-84550, ASME International Conference, 20th Biennial Conference on Mechanical Vibration and Noise, Long Beach, CA, September 24-28, 2005.