Implementation of the Elrod Algorithm in Practical Design of an Axial Lubricant Supply Groove in Journal Bearings

The Elrod algorithm was implemented to study the effects of axial lubricant supply groove parameters, i.e., groove length, width, and location, on the performance of a one-axial groove journal bearing, taking into consideration thermal effects. The results and presented recommendations will assist bearing designers in determining the groove's preferred angular location and main dimensions to achieve a solution in terms of low total power loss and high minimum film thickness. It is suggested that with regard to low total power loss and high minimum film thickness, for a lighter loaded bearing, the axial groove should be located in the angular range of 100-140 deg to the load line with a groove length ratio L-g/L over 0.6 or the angular range of 300-350 deg with an L-g/L over 0.75. For a heavier loaded bearing, it is suggested that the groove be placed at the angular range of 80-115 deg with an L-g/L over 0.6.

Automated summary

The Elrod algorithm was used to investigate the impact of axial lubricant supply groove parameters on the performance of a journal bearing. The study provides recommendations for the preferred angular location and main dimensions of the groove, aiming to achieve low power loss and high minimum film thickness.