Pressure And Capacity Changes In Slide Journal Bearing For Laminar Unsteady Oil Flow

• Autorzy: Krasowski P.
• Języki publikacji: EN

Abstrakty

EN

This paper presents numerical solutions of the modified Reynolds equation of laminar unsteady lubrication in a cylindrical slide journal bearing. Laminar, unsteady oil flow is performed during periodic and unperiodic perturbations of bearing load or is caused by the changes of gap height in the time. Above perturbations occur during the starting and stopping of machine. The particular solutions are limited to the isothermal models of bearing with infinite length and lubricated by Newtonian oil with the dynamic viscosity dependent on pressure. The disturbances are related to the unsteady velocity of oil flow on the sleeve and on the surface Diagram shows the results of hydrodynamic pressure and capacity forces in the dimensionless form in time intervals of displacement duration.

Słowa kluczowe

EN

journal bearing; unsteady laminar lubrication; pressure distribution; capacity forces

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2007
• Tom: Vol. 2, no 1
• Strony: 281--290
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Krasowski P.

• Gdynia Maritime University ul. Morska 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Krasowski, P., Modelling of laminar unsteady and unsymmetrical oil flow in slide journal bearing gap, Tribologia 5/2002 (185), pp. 1425-1436.
• [2] Krasowski, P., Capacity forces and pressure in slide journal bearing by laminar unsteady lubrication, ZAGADNIENIA EKSPLOATACJI MASZYN, 2(146), Vol.41 2006, pp. 83-94.
• [3] Krasowski, P., Pressure in slide journal bearing for laminar, unsteady lubrication by variable viscosity oil, Journal of KONES Internal Combustion Engines. Vol.12 No.1-2, pp.175-182, Warsaw 2005.
• [4] Teipel, I., Waterstraat, A., The Reynolds equation for lubrication under unsteady conditions, Proceedings The IX Canadian Congress of Applied Mechanics, pp. 497-502, University of Saskatchean 1983.
• [5] Wierzcholski, K., Theory unconventional lubricant slide journal bearing, Technical University Press, Szczecin 1995.
• [6] Wierzcholski, K., Mathematical methods in hydrodynamic theory of lubrication, Technical University Press, Szczecin 1993.