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2004 | 11 | 4 |
Tytuł artykułu

Viscoelastic lubrication of spherical slide bearing in impulsive unsteady motion

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
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
Słowa kluczowe
EN
Wydawca
-
Rocznik
Tom
11
Numer
4
Opis fizyczny
p.9-21,fig.,ref.
Twórcy
  • 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
Bibliografia
  • 1. Adharia P. L., Gupta J. L., Deheri G. M.: Effect of transversesurface roughness on the behaviour of squeeze film in a sphericalbearing. Proc. Int. Conf.: Problems of Non-Conv. BearingSystems NCBS 99, Appl. Mech. Eng. 1999, Vol.4, Spec. Issue
  • 2. Girtler J., Kuszmider S., Plewiński L. : Selected problems ofsea-going ship operation in the aspect of safety at sea (in Polish). Publishers: Maritime University of Szczecin. 2003
  • 3. Krasowski P., Wierzcholski K.,: About some analytical solutions of Reynolds Equation for the oil viscosity depended on pressureand magnetic induction. 2nd International Scientific Technical Conference Explo-Diesel & Gas Turbine 01. Gdańsk-Międzyzdroje-Kopenhaga. Proceedings, Vol.1. 2001
  • 4. Lukaszewicz G.: Micropolar Fluids Theory and Application.Birkhauser. Berlin, 1999
  • 5. Teipel, I.: The Impulsive Motion of a Flat Plate in a Viscoelastic Fluid. Acta Mechanica, 1981, Vol.39
  • 6. Truckenbrodt, E.: Strömungsmechanik. Springer Verlag. Berlin,New York. 1986
  • 7. Truesdell C.: A First Course in Rational Continuum Mechanics.John Hopkins University/Baltimore,Maryland 1972 (also :Piervonaczalnyj Kurs Racionalnoj Mechaniki MIR 1975 Moskva)
  • 8. Walicka A.: Inertia effects in the flow of a micropolar fluid ina slot between rotating surfaces of revolution. International Journal of Applied Mechanics, Vol.6, No. 3/2001
  • 9. Walicki E. : Motion of viscous fluid in the slots of thrust curvilinear bearings. Bydgoszcz University of Technology and Agriculture Publishers. 1977
  • 10. Wierzcholski K.: Non Isothermal Lubrication for Viscoelastic Ferromagnetic Oils. Fourth International Congress on Thermal Stresses. Proceedings of Thermal Stresses. Osaka, 2001
  • 11. Wierzcholski K.: Ferromagnetic Turbulent Lubrication for Thermoelasticity Deformations of Bearing Gap.The Fifth International Congress on Thermal Stresses and Related Topics.Virginia Polytechnic Institute and State University Blacksburg.Proceedings WA4-3. Virginia USA, 2003
  • 12. Wierzcholski K., Krasowski P.: Slide journal bearinglubrication for oil dynamic viscosity changes by pressure andmagnetic field. 2nd International Scientific Technical ConferenceExplo-Diesel & Gas Turbine 01, Gdańsk-Miiędzyzdroje--Kopenhaga. Proceedings Vol.1, 2001
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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