{"title":"Rheodynamic Lubrication of a Rectangular Squeeze Film Bearing with an Exponential Curvature Variation using Bingham Lubricants","authors":"K. P. Vishwanath, A. Kandasamy","volume":19,"journal":"International Journal of Physical and Mathematical Sciences","pagesStart":380,"pagesEnd":385,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/1676","abstract":"The present work deals with analyses of the effects\r\nof bearing curvature and non-Newtonian characteristics on the load capacity of an exponential rectangular squeeze film bearing using\r\nBingham fluids as lubricants. Bingham fluids are characterized by an\r\nyield value and hence the formation of a \u201crigid\" core in the region\r\nbetween the plates is justified. The flow is confined to the region\r\nbetween the core and the plates. The shape of the core has been\r\nidentified through numerical means. Further, numerical solutions for\r\nthe pressure distribution and load carrying capacity of the bearing\r\nfor various values of Bingham number and curvature parameter have\r\nbeen obtained. The effects of bearing curvature and non-Newtonian\r\ncharacteristics of the lubricant on the bearing performances have been\r\ndiscussed.","references":"[1] M. J. Adams, I. Aydin, B. J. Briscoe, S. K. Sinha, A finite element analysis of the squeeze flow of an elasto-viscoplastic paste material,\r\nJ. Non-Newton. Fluid Mech. 1997, 71, 41-57.\r\n[2] A. Kandasamy, Effects of fluid inertia forces in rheodynamic lubrication\r\nof a rectangular squeeze film bearing, Proceedings of the Japan\r\nInternational Tribology Conference, Nagoya. 1990, 131, 313-318.\r\n[3] A. Cameron, Basic Lubrication Theory, 2nd ed. New York, USA:\r\nJohn Wiley & Sons Inc., 1976.\r\n[4] G. H. Covey, and B. R. Stanmore, Use of parallel-plate plastomer for the\r\ncharacterization of viscous study with a yield stress, J. Non-Newton.\r\nFluid Mech. 1981, 8, 249-260.\r\n[5] D. K. Gartling, and N. Phan-Thien, A numerical simulation of a plastic\r\nflow fluid in a parallel plate plastomer, J. Non-Newton. Fluid Mech.\r\n1984, 14, 347-360.\r\n[6] D. C. Huang, B. C. Liu, T. Q. Jiang, An analytical solution of radial flow\r\nof a Bingham fluid between two fixed circular disks, J. Non-Newton.\r\nFluid Mech. 1987, 26, 143-148.\r\n[7] E. J. O-Donovan, R. I. Tanner, Numerical study of the Bingham Squeeze\r\nfilm problem, J. Non-Newton. Fluid Mech. 1984, 15, 75-83.\r\n[8] K. P. Vishwanath and A. Kandasamy, Rheodynamic Lubrication of a\r\nRectangular Squeeze Film Bearing with Inertial Effects using Herschel-\r\nBulkley Lubricants, Proceedings of International Conference on\r\nMathematical Sciences 2008, Al-Ain, Dubai.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 19, 2008"}