Porous squeeze film bearing with rough surfaces lubricated by a Bingham fluid

• Autorzy: Walicka A. , Walicki E. , Jurczak P. , Falicki J.

Identyfikatory

DOI

10.2478/ijame-2014-0055

• Języki publikacji: EN

Abstrakty

EN

In the paper the effect of both bearing surfaces and the porosity of one bearing surface on the pressure distribution and load-carrying capacity of a squeeze film bearing is discussed. The equations of motion of a Bingham fluid in a bearing clearance and in a porous layer are presented. Using the Morgan-Cameron approximation and Christensen theory of rough lubrication the modified Reynolds equation is obtained. The analytical solutions of this equation for a squeeze film bearing are presented. As a result one obtains the formulae expressing pressure distribution and load-carrying capacity. A thrust radial bearing is considered as a numerical example.

Słowa kluczowe

EN

viscoplastic fluid; Bingham model; thrust bearing; porous layer; Christensen roughness

PL

płyn lepkosprężysty; model Binghama; łożysko oporowe; warstwa porowata

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2014
• Tom: Vol. 19, no. 4
• Strony: 795--808
• Opis fizyczny: Bibliogr. 26 poz., wykr.

Twórcy

autor

Walicka A.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, POLAND

autor

Walicki E.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, POLAND

autor

Jurczak P.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, POLAND

autor

Falicki J.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, 65-516 Zielona Góra, POLAND

Bibliografia

• [1] Bujurke N.M., Jagadee M. and Hiremath P.S. (1987): Analysis of normal stress effects in squeeze film porous bearing. - Wear, vol.116, pp.237-248.
• [2] Bujurke N.M., Kudenatti R.B. and Awati V.B. (2007): Effect of surface roughness on squeeze film poroelastic bearings with special reference to synovial joints. - Mathematical Biosciences, vol.209, pp.76-89.
• [3] Christensen H. (1970): Stochastic model for hydrodynamic lubrication of rough surfaces. - Proc. Inst. Mech. Engrs, vol.184, pt 1, pp.1013-1022.
• [4] Christensen H. and Tønder 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 Tønder K. (1973): The hydrodynamic lubrication of rough journal bearings. - ASME, J. Lubric. Technol., vol.95, No.1, pp.166-172.
• [6] Covey G.H. and Stanmore B.R. (1981): Use of the parallel-plate plastometer for the characterisation of viscous fluids with a yield stress. - J. Non-Newtonian Fluid Mech., vol.8, pp.249-260.
• [7] Dai G. and Bird R.B. (1981): Radial flow of Bingham fluid between two fixed circular disks. - J. Non-Newtonian Fluid Mech., vol.8, pp.349-355.
• [8] Etsion I. and Michael O. (1994): Enhancing sealing and dynamic performance with partially porous mechanical face seals. - Trib. Transactions, vol.37, pp.701-710.
• [9] Gururajan K. and Prakash J. (1999): Surface roughness effects in infinitely long porous journal bearing. - Journal of Tribology, Trans. ASME, vol.121, No.1, pp.139-147.
• [10] 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.
• [11] Lin J.-R. (2001): The effect of couple stresses in the squeeze film behaviour between isotropic rough rectangular plates. - Int. J. Appl. Mech. Eng., vol.6, No.4, pp.1007-1024.
• [12] Lipscomb C.C. and Denn M.M. (1984): Flow of Bingham fluids in complex geometries. - J. Non-Newtonian Fluid Mech., vol.14, pp.337-349.
• [13] Morgan V.T. and Cameron A. (1957): Mechanism of lubrication in porous metal bearings. - Proc. Conf. on Lubrication and Wear, Inst. Mech. Eng. London, pp.151-157.
• [14] Prakash J. and Tiwari K. (1984): An analysis of the squeeze film between rough porous rectangular plates with arbitrary porous wall thickness. - Journal of Tribology, Trans. ASME, vol.106, No.2, pp.218-222.
• [15] Prakash J. and Tiwari K. (1985): Effects of surface roughness on the squeeze film between rectangular porous annular disc with arbitrary porous wall thickness. - Int. J. Mech. Sci., vol.27, No.3, pp.135-144.
• [16] Prakash J. and Vij S.K. (1973): Load capacity and time-height relations for squeeze films between porous plates. - Wear, vol.24, pp.309-322.
• [17] Shukla J.B. and Isa M. (1978): Externally pressurised porous thrust bearing with power-law lubricant. - Wear, vol.33, pp.85-92.
• [18] Walicka A. (1994): Accurate and Asymptotic Solutions of Viscous Fluids in a Clearance Bounded by Two Co-axial Surfaces of Revolution (in Polish). - Warsaw: WN-T.
• [19] Walicka A. (2002): Rotational Flows of Rheologically Complex Fluids in Thin Channels (in Russian). - Zielona Gora: University Press.
• [20] Walicka A. (2009): Surface roughness effects in a curvilinear squeeze film bearing lubricated by a power-law fluid, Int. J. Appl. Mech. Engng, vol.14, No.1, pp.277-293.
• [21] Walicka A. (2011): Pressure distribution in a porous curvilinear squeeze film bearing lubricated by a Bingham fluid. - Int. J. Appl. Mech. Enging, vol.16, No.4, pp.1215-1224.
• [22] Walicka A. (2012): Porous curvilinear squeeze film bearing with rough surfaces lubricated by a power-law fluid. - Journal of Porous Media, vol.15, No.1, pp.29-49.
• [23] Walicka A. and Walicki E. (2002a): Surface roughness effect on the pressure distribution in curvilinear thrust bearings. - Exploitation Problems of Machines, vol. 131, No.3, pp.157-167.
• [24] Walicka A. and Walicki E. (2002b): Couple stress and surface roughness effects in curvilinear thrust bearings, Int. J. Appl. Mech. Engng, vol.7, Spec. Issue: SITC, pp.109-117.
• [25] Walicka A. and Walicki E. (2011): Non-Newtonian fluids flows in porous media. - In: Rheology - Theory and Application, vol.2., pp.337-367, EKMA Press, Warsaw.
• [26] Walicki E. (2005): Rheodynamics of Slide Bearings Lubrication (in Polish). - Zielona Gora: University Press.