Rotational inertia and roughness effect in curvilinear thrust bearings

• Autorzy: Walicka A. , Walicki E.
• Konferencja: Third International Tribology Conference ITC 2004
• Języki publikacji: EN

Abstrakty

EN

On the basis of Christensen's stochastic model of rough surfaces, different forms of Reynolds equation with rotational inertia effect are obtained for various types of surface roughness pattern and for Newtonian lubricant. As results one obtained the generalized formulae expressing the mean pressure distribution and load capacity for externally pressurized bearings. A spherical bearing is discussed as an example.

Słowa kluczowe

EN

Christensen stochastic model; surface roughness; curvilinear surfaces; thrust bearings

PL

chropowatość powierzchni; łożysko oporowe; równanie Reynoldsa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no spec.
• Strony: 329--336
• Opis fizyczny: Bibliogr. 10 poz., wykr.

Twórcy

autor

Walicka A.

• University of Zielona Góra, Department of Mechanics ul. Szafrana 2, P.O. Box 47, 65-016 Zielona Góra, POLAND

autor

Walicki E.

• University of Zielona Góra, Department of Mechanics ul. Szafrana 2, P.O. Box 47, 65-016 Zielona Góra, POLAND

Bibliografia

• [1] Andharia P.I., Gupta J.L. and Deheri G.M. (1999): Effect of transverse surface roughness on the behaviour of squeeze film in a spherical bearing. - Proc. Int. Conf.: Problems of Non-Conv. Bearing Systems NCBS’99, Appl. Mech. Eng., vol.4, Spec. Issue, pp. 19-24.
• [2] Andharia P.I., Deheri G.M. and Gupta J.L. (2001): Effect of longitudinal surface roughness on the behaviour of squeeze film in a spherical bearing. - Int. J. Appl. Mech. Eng., vol.6, No.4, pp.885-897.
• [3] Christensen H. (1969-1970): Stochastic model for hydrodynamic lubrication of rough surfaces. - Proc. Inst. Mech. Engrs., vol. 184, pt 1, 1969-1970, pp.1013-1022.
• [4] Christensen H. and T0nder K. (1971): The hydrodynamic lubrication of rough bearing surfaces of finite width. - ASME, J. Lubric. Technol., vol.93, No.2, pp.324-330.
• [5] Christensen H. and T0nder K. (1973): The hydrodynamic lubrication of rough journal bearings. - ASME, J. Lubric. Technol., vol.95, No.l, pp.166-172.
• [6] Gururajan K. and Prakash J. (1999): Surfaces roughness effects in infinitely long porous journal bearings. - ASME, J. Tribol., vol.121, No.l, pp.139-147.
• [7] Lin J.-R. (2000): Surfaces roughness effect on the dynamic stiffness and damping characteristics of compensated hydrostatic thrust bearings. - Int. J. Machine Tools Manufact., vol.40, pp.1671-1689.
• [8] Prakash J. and Tiwari K. (1982): Lubrication of a porous bearing with surface corrugations. - ASME, J. Lubric. Technol., vol.104, No.l, pp.127-134.
• [9] Walicki E. and Walicka A. (1994): Analysis of an incompressible Newtonian flow in a slot of the curvilinear thrust bearing. - Mechanika, Zielona Góra: ZN WSI, vol.20, pp.33-60.
• [10] Walicki E. and Walicka A. (2002): Effect of lubricant inertia and wall conductance on the pressure distribution in MHD thrust bearings. - Tribologia, No.6, vol.186, pp. 1691-1701.