Pressure distribution in a porous squeeze film bearing lubricated by a simple Casson fluid

• Autorzy: Walicka A. , Walicki E. , Jurczak P.
• Języki publikacji: EN

Abstrakty

EN

The influence of a wall porosity on the pressure distribution in a curvilinear squeeze film bearing lubricated by a lubricant being a viscoplastic fluid of a simple Casson type is considered. After general considerations on the flow of the viscoplastic fluid (lubricant) in a bearing clearance and in a porous layer the modified Reynolds equation for the curvilinear squeeze film bearing with a Casson lubricant is given. The solution of this equation is obtained by a method of successive approximation. As a result one obtains a formula expressing the pressure distribution. The example of squeeze film in a step bearing (modeled by two parallel disks) is discussed in detail.

Słowa kluczowe

EN

Casson type lubricant; squeeze film; thrust bearing

PL

smar typu Casson; porowate łożysko; łożysko oporowe

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2012
• Tom: Vol. 17, no. 3
• Strony: 1039--1049
• Opis fizyczny: Bibliogr. 22 poz., wykr.

Twórcy

autor

Walicka A.

autor

Walicki E.

autor

Jurczak P.

• University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, P.O.Box 47, 65-516 Zielona Góra, POLAND,

Bibliografia

• Adams M.J. and Edmondson B. (1987): Forces between particles in continuous and discrete liquid media. - In: B.J.Briscoe and M.J.Adams (Eds): Tribology in Particulate Technology, pp.154-172, IOP Publishing, New York.
• 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.
• 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.
• 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.
• Engman J., Servais C. and Burbidge A.S. (2005): Squeeze flow theory and applications to rheometry: a review. - J. Non-Newtonian Fluid Mech., vol.132, pp.1-27.
• Etsion I. and Michael O. (1994): Enhancing sealing and dynamic performance with partially porous mechanical face seals. - Trib. Transactions, vol.37, pp.701-710.
• 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.
• 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.
• 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.
• Rodin G.J. (1996): Squeeze film between two spheres in a power-law fluid. - J. Non-Newtonian Fluid Mech., vol.63, pp.141-152.
• Shukla J.B. and Isa M. (1978): Externally pressurised porous thrust bearing with power-law lubricant. - Wear, vol.33, pp.85-92.
• Smyrnaios D.N. and Tsamopoulos J.A. (2001): Squeeze flow of Bingham plastic. - J. Non-Newtonian Fluid Mech., vol.100, pp.165-190.
• Vishwanath K.P and Kandasamy A. (2010): Inertia effects in circular squeeze film bearing using Herschel-Bulkley lubricants. - Appl. Math. Modelling, vol.34, pp.219-227.
• 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.
• Walicka A. (2002a): Rheodynamics of Non-Newtonian Fluids Flows in Straight and Curved Channels (in Polish). - Zielona Góra: University Press.
• Walicka A. (2002b): Rotational Flows of the Rheologically Complex Media in Thin Annular Channels (in Russian). - Zielona Góra: University Press.
• 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.
• 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.
• Walicki E. and Walicka A. (1997): Throughflow of viscoplastic fluids between fixed surface of revolution. - Proc. 5th Nat. Conf. on Multiphase Flows, Gdańsk, vol.2, pp.133-136.
• Walicki E., Walicka A. and Michalski D. (1997): The influence of wall's porosity on the pressure distribution in the curvilinear bearing lubricated by power-law fluid. - Proc. Nat. Conf.: Problems of Non-Conventional Bearings Systems, No.3, pp.102-109.
• Walicki E, Walicka A. and Makhaniok A. (2000): Pressure distribution in a curvilinear thrust bearing with one porous wall lubricated by a Bingham fluid. - Proc. First 2000 AIMETA Int. Trib. Conf., L'Aquila, pp.528-539.
• Walicki E. (2005): Rheodynamics of the Lubrication of Slide Bearings (in Polish). - Zielona Góra: University Press.