Carrying Capacity of Spherical Hydrostatic Bearings Including Dynamic Pressure

Abstract

To calculate the carrying capacity of spherical hydrostatic bearings, a numerical calculation model was presented. The influence law of dynamic pressure effect on the carrying characteristics of liquid hydrostatic spherical bearings is revealed. Under general working conditions, the dynamic pressure effect caused by the radial eccentricity of the bearing has little influence on the bearing load characteristics parameters; when the minimum width of the gap between the sealing edge is very small and the bearing rotational speed is high, the dynamic pressure effect is more obvious.

Keywords

• spherical hydrostatic bearing
• numerical calculation model
• carrying capacity
• Navier–Stokes equation
• dynamic pressure