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2004 | 11 | 4 |
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Viscoelastic lubrication of spherical slide bearing in impulsive unsteady motion

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This paper presents numerical and semi-analytical solutions of oil velocity componentsand pressure distributions in spherical unsymmetrical gap of slide bearing. A hydrodyna-mic unsteady lubrication during oil flow with viscoelastic properties is here considered. Inthe case of various driving systems on ships the bearings with spherical journals andspherical sleeves or slide bearings with spherical bits operate often under impulsive unsteadymotions. Many impurities appearing in service leads to viscoelastic properties of the oil.During service of transport machines it is necessary to adjust the shaft location respectiveto the sleeve in order to make optimizing the convergent lubricating film possible. Such conditions are effectively satisfied in bearings with spherical journals. The presented numerical calculations were perfor-med by means of the Mathcad 2000 Professional Program and the method of finite differences. This method satisfies stability conditions of numerical solutions of capacity forces occurring in spherical bearings
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  • Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk, Poland
  • Faculty of Mechanical Engineering, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland
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