A Study of the Thermohydrodynamic Performance of Steadily Loaded Journal Bearings

A comprehensive thermohydrodynamic (THD) analysis of steadily loaded journal bearings has been developed that includes mass conserving cavitation, full solution of the 3-D energy equation in the oil film, heat conduction in the bushing and journal, mixing of hot circulating oil with fresh supply oil and solution of the inverse problem (given the load, find the film thickness). The temperature distribution in the oil film and bushing is found using a coupled approach where the same 3-D energy equation is solved in both the oil film and bushing. With this approach the steady-state problem can be solved without iterations between the thermal solutions in the oil film and the bushing, thereby allowing ready analysis of multilayer bushings. Predictions of the analysis compared very well with measurements reported by Dowson et al. (1). A thermohydro-dynamic study of bearing performance as a function of clearance for a typical automotive bearing revealed that there is an optimum clearance that gives the largest ...

[1]  A. Cameron.  Basic lubrication theory , 1976 .

[2]  H. H. Ott,et al.  Thermohydrodynamic Analysis of Journal Bearings Considering Cavitation and Reverse Flow , 1988 .

[3]  M. Fillon,et al.  Analysis of Thermal Effects in Hydrodynamic Bearings , 1986 .

[4]  D. E. Brewe,et al.  Theoretical Modeling of the Vapor Cavitation in Dynamically Loaded Journal Bearings , 1986 .

[5]  Taeyoung Han.  A Navier-Stokes Analysis of Three-Dimensional Turbulent Flows around a Bluff Body in Ground Proximity , 1988 .

[6]  D. Spalding.  A novel finite difference formulation for differential expressions involving both first and second derivatives , 1972 .

[7]  D. Dowson.  A generalized Reynolds equation for fluid-film lubrication , 1962 .

[8]  Suhas V. Patankar,et al.  A NUMERICAL METHOD FOR CONDUCTION IN COMPOSITE MATERIALS, FLOW IN IRREGULAR GEOMETRIES AND CONJUGATE HEAT TRANSFER , 1978 .

[9]  H. H. Rachford,et al.  The Numerical Solution of Parabolic and Elliptic Differential Equations , 1955 .

[10]  D. Dowson,et al.  Paper 3: An Experimental Investigation of the Thermal Equilibrium of Steadily Loaded Journal Bearings , 1966 .

[11]  Michael M. Khonsari,et al.  A Review of Thermal Effects in Hydrodynamic Bearings. Part II: Journal Bearings , 1987 .

[12]  R. S. Paranjpe,et al.  Analysis of Non-Newtonian Effects in Dynamically Loaded Finite Journal Bearings Including Mass Conserving Cavitation , 1992 .

[13]  P. K. Goenka,et al.  Analysis of Crankshaft Bearings Using a Mass Conserving Algorithm , 1990 .

[14]  J. Glienicke,et al.  Operating Conditions of Multi-Lobe Journal Bearings Under High Thermal Loads , 1990 .

[15]  Rohit S. Paranjpe,et al.  A Finite Volume Analysis of the Thermohydrodynamic Performance of Finite Journal Bearings , 1990 .

[16]  S. Rohde,et al.  A Study of the Thermohydrodynamic Performance of Finite Slider Bearings , 1973 .

[17]  Michael M. Khonsari,et al.  On The Fluid-Solid Interaction in Reference to Thermoelastohydrodynamic Analysis of Journal Bearings , 1991 .

[18]  Michael M. Khonsari,et al.  A Review of Thermal Effects in Hydrodynamic Bearings Part I: Slider and Thrust Bearings , 1987 .

[19]  Michael M. Khonsari,et al.  Thermohydrodynamic analysis of laminar incompressible journal bearings. , 1985 .

[20]  H. Elrod.  A Cavitation Algorithm , 1981 .

[21]  Jean Frene,et al.  Experimental Study of Tilting-Pad Journal Bearings—Comparison With Theoretical Thermoelastohydrodynamic Results , 1992 .

[22]  P. K. Goenka.  Analytical Curve Fits for Solution Parameters of Dynamically Loaded Journal Bearings , 1984 .

[23]  R. D. Richtmyer,et al.  Difference methods for initial-value problems , 1959 .

[24]  P. K. Goenka,et al.  Dynamically Loaded Journal Bearings: Finite Element Method Analysis , 1984 .