Journal Bearing

Application ID: 8562

Journal bearings are used to carry radial loads, for example, to support a rotating shaft. A simple journal bearing consists of two rigid cylinders. The outer cylinder (bearing) wraps the inner rotating journal (shaft).

The new thin-film flow user interfaces of the CFD Module enables lubrication analysis and full elastohydrodynamic simulations. This example shows the pressure distribution in a lubricant in a journal bearing, where the bearing extends all around the rotating journal. In solving the Reynolds equation on the surface of the lubricant wrapped around the journal, the model uses a converging and diverging lubricant thickness to model the journal's eccentric position within the bearing clearance.

This model is included as an example in the following products:

CFD Module