Abstract
AbstractIn the present paper, the hydrodynamic lubrication problems of multi‐lobe bearings are treated by the Boundary Element Method in lubrication theory. For example, we have made numerical calculations for elliptical bearings and three‐lobe bearings. The stress and pressure distributions on the bearings and the velocity fields of the lubricant are given. We also studied conditions for the occurrence of vortexes in the flow region. The numerical investigations have shown that the method is very effective in handling hydrodynamic lubrication problems and it can be used to study the vortex in arbitrary shape bearings. Furthermore, the method has some advantages of computational convenience and superior accuracy. Especially, the ending point of the oil film pressure can be ascertained when non‐linear terms are considered, and that is undoubtedly extremely important in studying hydrodynamic lubrication problems.
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