A model for the effect of roughness on the load capacity of journal bearings

Author:
D. W. Pravica

Journal:
Quart. Appl. Math. **53** (1995), 563-573

MSC:
Primary 76D08

DOI:
https://doi.org/10.1090/qam/1343468

MathSciNet review:
MR1343468

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Abstract: The flow generated by a rotating circular cylinder inside a corrugated outer cylinder is considered. The corrugations are small and are used to model roughness. The force on the inner cylinder, as a linear function of displacement, is found. This requires a Stokes expansion to determine a first-order correction in the Reynolds number . The result implies as expected that transverse roughness acts to increase the load capacity of the bearing at low , which is confirmed by previous numerical experiments. In addition, roughness can induce reversed flow at much smaller displacements than for smooth bearings.

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Additional Information

DOI:
https://doi.org/10.1090/qam/1343468

Article copyright:
© Copyright 1995
American Mathematical Society