Linear squeeze film with constant rotational speed

Document Type

Article

Publication Date

5-1-2008

Abstract

Squeeze-film action in lubrication is present in many mechanical components, such as bearings, squeeze-film dampers, piston pins, and piston rings, as well as in natural and artificial joints. These mechanical components experience both rotation and squeeze action. In this paper, an experimental and theoretical model is developed that takes into account the combination of rotational speed as well as squeeze-film action in journal bearings. The vertical bearings, such as those in vertical pumps, are considered as well as the horizontal bearings. The governing equation and boundary conditions are derived for this purpose. Both the classical hydrodynamic lubrication theory and the mass conservation cavitation algorithm are considered. A comparison of the results of a series of experimental measurements and theoretical prediction show that they are in reasonable agreement. Examples are provided to illustrate how the results can be used in practice.

Publication Source (Journal or Book title)

Tribology Transactions

First Page

361

Last Page

371

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