The accuracy of the compressible Reynolds equation for predicting the local pressure in gas-lubricated textured parallel slider bearings.

The validity of the compressible Reynolds equation to predict the local pressure in a gas-lubricated, textured parallel slider bearing is investigated. The local bearing pressure is numerically simulated using the Reynolds equation and the Navier-Stokes equations for different texture geometries and operating conditions. The respective results are compared and the simplifying assumptions inherent in the application of the Reynolds equation are quantitatively evaluated. The deviation between the local bearing pressure obtained with the Reynolds equation and the Navier-Stokes equations increases with increasing texture aspect ratio, because a significant cross-film pressure gradient and a large velocity gradient in the sliding direction develop in the lubricant film. Inertia is found to be negligible throughout this study.

[1]  Cornelis H. Venner,et al.  Stokes flow in thin films , 2003 .

[2]  Michael M. Khonsari,et al.  An Experimental Investigation of Dimple Effect on the Stribeck Curve of Journal Bearings , 2007 .

[3]  Izhak Etsion,et al.  Near-Contact Laser Surface Textured Dry Gas Seals , 2004 .

[4]  Izhak Etsion.  State of the Art in Laser Surface Texturing , 2004 .

[5]  Frank E. Talke,et al.  A tightly coupled numerical foil bearing solution , 1990 .

[6]  K. A. Semendyayev,et al.  Handbook of mathematics , 1985 .

[7]  John H. Vohr,et al.  Characteristics of Herringbone-Grooved, Gas-Lubricated Journal Bearings , 1965 .

[8]  Daniel Rixen,et al.  A multiscale method modeling surface texture effects , 2006 .

[9]  Roland Larsson,et al.  Two-Dimensional CFD-Analysis of Micro-Patterned Surfaces in Hydrodynamic Lubrication , 2005 .

[10]  Izhak Etsion,et al.  Friction-Reducing Surface-Texturing in Reciprocating Automotive Components , 2001 .

[11]  John W. Chew,et al.  Calculation of surface roughness effects on air-riding seals , 2004 .

[12]  Pawel Pawlus,et al.  Dimples shape and distribution effect on characteristics of Stribeck curve , 2009 .

[13]  S. B. Malanoski,et al.  The Static and Dynamic Characteristics of the Spiral-Grooved Thrust Bearing , 1965 .

[14]  Izhak Etsion,et al.  Experimental Investigation of Laser Surface Textured Parallel Thrust Bearings , 2004 .

[15]  B. Hamrock,et al.  Fundamentals of Fluid Film Lubrication , 1994 .

[16]  Izhak Etsion,et al.  The Validity of the Reynolds Equation in Modeling Hydrostatic Effects in Gas Lubricated Textured Parallel Surfaces , 2005 .

[17]  Bart Raeymaekers,et al.  The Effect of Texture Shape on the Load-Carrying Capacity of Gas-Lubricated Parallel Slider Bearings , 2012, Tribology Letters.

[18]  X. Q Yu,et al.  Frictional characteristics of mechanical seals with a laser-textured seal face , 2002 .

[19]  Jean Frene,et al.  Theoretical Analysis of the Incompressible Laminar Flow in a Macro-Roughness Cell , 2003 .

[20]  Kwan-Liu Ma,et al.  A Comparison of Gradient Estimation Methods for Volume Rendering on Unstructured Meshes , 2011, IEEE Transactions on Visualization and Computer Graphics.

[21]  Koshi Adachi,et al.  Optimization of the surface texture for silicon carbide sliding in water , 2006 .

[22]  Micro-Inertia Effects in Laminar Thin-Film Flow Past a Sinusoidal Boundary , 1997 .

[23]  Roland Larsson,et al.  Some Remarks on the Validity of Reynolds Equation in the Modeling of Lubricant Film Flows on the Surface Roughness Scale , 2004 .

[24]  M. Fillon,et al.  About the validity of Reynolds equation and inertia effects in textured sliders of infinite width , 2009 .

[25]  S. Glavatskih,et al.  Inertia effects in textured hydrodynamic contacts , 2010 .

[26]  Kôji Katô,et al.  Loads carrying capacity map for the surface texture design of SiC thrust bearing sliding in water , 2003 .

[27]  Compressible Stokes Flow in Thin Films , 2003 .

[28]  Jože Vižintin,et al.  Surface texturing by pulsed Nd:YAG laser , 2009 .

[29]  Izhak Etsion,et al.  The effect of laser surface texturing on transitions in lubrication regimes during unidirectional sliding contact. , 2005 .

[30]  Izhak Etsion,et al.  Analytical and Experimental Investigation of Laser-Textured Mechanical Seal Faces , 1999 .

[31]  F. Talke,et al.  Enhancing tribological performance of the magnetic tape/guide interface by laser surface texturing , 2007 .

[33]  Izhak Etsion,et al.  Analysis of the Hydrodynamic Effects in a Surface Textured Circumferential Gas Seal , 2001 .