Theoretical Studies of a Continuously Adjustable Hydrodynamic Fluid Film Bearing

Principles of a continuously adjustable hydrodynamic bearing are described together with a comprehensive analysis model for studying its theoretical performance. The model included an expanded form of the governing Reynolds equation which took account of non-uniform variations in the fluid film thickness. A solution procedure was devised whereby for a given set of adjustment conditions full simultaneously converged fields of fluid film thickness, temperature, viscosity and pressure would result, together with oil film forces. A wide range of operating characteristics were studied with results predicting advantages and benefits over conventional hydrodynamic bearings.