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Journal Articles

Elastohydrodynamic Lubrication Traction Coefficient is Not a Property of the Liquid Alone

Scott Bair, Wassim Habchi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. April 2025, 147(4): 044501.
Paper No: TRIB-24-1510
https://doi.org/10.1115/1.4067692
Published Online: February 7, 2025
View Articletitled, Elastohydrodynamic Lubrication Traction Coefficient is Not a Property of the Liquid Alone
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Topics: Elastohydrodynamic lubrication, Pressure, Temperature, Traction, Friction, Rollers, Rheology, Fluids, Viscosity, Turbines
Journal Articles

Quantitative Elastohydrodynamic Lubrication—Seventeen Years In

Scott Bair, Wassim Habchi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Review Articles
J. Tribol. August 2024, 146(8): 080801.
Paper No: TRIB-24-1059
https://doi.org/10.1115/1.4065299
Published Online: May 3, 2024
View Articletitled, Quantitative Elastohydrodynamic Lubrication—Seventeen Years In
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Topics: Elastohydrodynamic lubrication, Film thickness, Pressure, Shear (Mechanics), Traction, Viscosity, Friction, High pressure (Physics), Simulation
Journal Articles

A Universal Mixing Rule for the High-Pressure Viscosity of Oil/Refrigerant Mixtures

Scott Bair, Tequila Harris
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. April 2024, 146(4): 044501.
Paper No: TRIB-23-1385
https://doi.org/10.1115/1.4064307
Published Online: January 9, 2024
View Articletitled, A Universal Mixing Rule for the High-Pressure Viscosity of Oil/Refrigerant Mixtures
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Topics: High pressure (Physics), Refrigerants, Viscosity, Rolling bearings, Pressure
Proceedings Papers

On an Apparent Singularity in the Flow of Liquids Under High Shear Stress

Scott Bair, M. M. Khonsari
Proc. ASME. IMECE96, Rheology and Fluid Mechanics of Nonlinear Materials, 229-236, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0246
https://doi.org/10.1115/IMECE1996-0246
View Paper titled, On an Apparent Singularity in the Flow of Liquids Under High Shear Stress
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Topics: Flow (Dynamics), Shear stress, Pressure, Pressure gradient, Shear (Mechanics), Viscosity, Die cutting, Elastohydrodynamic lubrication, Gears, Lubrication
Journal Articles

Erratum: “Revisiting the ASME Pressure–Viscosity Report Using the Tait-Doolittle Correlations” [ASME J. Tribol., 2021, 143(6), p. 061901; DOI: 10.1115/1.4048605 ]

Thomas J. Zolper, Scott Bair, Kyle Horne
Journal: Journal of Tribology
Publisher: ASME
Article Type: Errata
J. Tribol. February 2022, 144(2): 027001.
Paper No: TRIB-21-1325
https://doi.org/10.1115/1.4052778
Published Online: November 12, 2021
View Articletitled, Erratum: “Revisiting the ASME Pressure–Viscosity Report Using the Tait-Doolittle Correlations” [ASME J. Tribol., 2021, 143(6), p. 061901; DOI: 10.1115/1.4048605 ]
Open the PDF for Erratum: “Revisiting the ASME Pressure–Viscosity Report Using the Tait-Doolittle Correlations” [ASME J. Tribol., 2021, 143(6), p. 061901; DOI: 10.1115/1.4048605 ] in another window
Topics: Pressure, Viscosity
Journal Articles

Your EHD Rig May Not Be As Elastohydrodynamic As You Think

Scott Bair, Wassim Habchi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2021, 143(8): 081601.
Paper No: TRIB-20-1465
https://doi.org/10.1115/1.4049592
Published Online: February 2, 2021
View Articletitled, Your EHD Rig May Not Be As Elastohydrodynamic As You Think
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Topics: Elastohydrodynamic lubrication, Film thickness, Glass, Pressure, Steel, Viscosity, Lubrication
Journal Articles

Revisiting the ASME Pressure-Viscosity Report Using the Tait-Doolittle Correlations

Thomas J. Zolper, Scott Bair, Kyle Horne
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. June 2021, 143(6): 061901.
Paper No: TRIB-20-1312
https://doi.org/10.1115/1.4048605
Published Online: October 27, 2020
View Articletitled, Revisiting the ASME Pressure-Viscosity Report Using the Tait-Doolittle Correlations
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Topics: Pressure, Temperature, Viscosity, Density, Lubricants
Journal Articles

The Viscosity of Polyalphaolefins Mixtures at High Pressure and Stress

Scott Bair, Samuel Flores-Torres
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. February 2019, 141(2): 021802.
Paper No: TRIB-18-1154
https://doi.org/10.1115/1.4041124
Published Online: October 11, 2018
View Articletitled, The Viscosity of Polyalphaolefins Mixtures at High Pressure and Stress
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Topics: Shear (Mechanics), Viscosity, Pressure
Journal Articles

Quantitative Elastohydrodynamic Film-Forming for an Oil/Refrigerant System

Scott Bair, Wassim Habchi, Mark Baker, David M. Pallister
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. November 2017, 139(6): 061501.
Paper No: TRIB-16-1303
https://doi.org/10.1115/1.4036171
Published Online: June 7, 2017
View Articletitled, Quantitative Elastohydrodynamic Film-Forming for an Oil/Refrigerant System
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Topics: Film thickness, Pressure, Refrigerants, Temperature, Viscosity
Journal Articles

Revisiting the Compressibility of Oil/Refrigerant Lubricants

Scott Bair, Mark Baker, David M. Pallister
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. March 2017, 139(2): 024501.
Paper No: TRIB-16-1060
https://doi.org/10.1115/1.4033335
Published Online: August 11, 2016
View Articletitled, Revisiting the Compressibility of Oil/Refrigerant Lubricants
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Topics: Compressibility, Lubricants, Pressure, Refrigerants, Viscosity, Bellows (Equipment), Weight (Mass)
Journal Articles

The Equation of State and the Temperature, Pressure, and Shear Dependence of Viscosity for a Highly Viscous Reference Liquid, Dipentaerythritol Hexaisononanoate

Scott Bair, Tsuyoshi Yamaguchi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2017, 139(1): 011801.
Paper No: TRIB-15-1363
https://doi.org/10.1115/1.4033050
Published Online: July 26, 2016
View Articletitled, The Equation of State and the Temperature, Pressure, and Shear Dependence of Viscosity for a Highly Viscous Reference Liquid, Dipentaerythritol Hexaisononanoate
Open the PDF for The Equation of State and the Temperature, Pressure, and Shear Dependence of Viscosity for a Highly Viscous Reference Liquid, Dipentaerythritol Hexaisononanoate in another window
Topics: Pressure, Shear (Mechanics), Temperature, Viscosity
Proceedings Papers

A Fluid Property Model for Piston Pump Case Drain and Pressure Compensator Flow Losses

Shreya Mettakadapa, Scott Bair, Shinji Aoki, Masahiro Kobessho, Laura Carter, Hideto Kamimura, Paul W. Michael
Proc. ASME. FPMC2015, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, V001T01A009, October 12–14, 2015
Publisher: American Society of Mechanical Engineers
Paper No: FPMC2015-9515
https://doi.org/10.1115/FPMC2015-9515
View Paper titled, A Fluid Property Model for Piston Pump Case Drain and Pressure Compensator Flow Losses
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Topics: Flow (Dynamics), Fluids, Pistons, Pressure, Pumps, Modeling, Bulk modulus, Displacement, Mineral oil, Compressible flow
Journal Articles

Time-Temperature-Pressure Superposition in Polymer Thickened Liquid Lubricants

Scott Bair, Farrukh Qureshi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2014, 136(2): 021505.
Paper No: TRIB-13-1176
https://doi.org/10.1115/1.4026591
Published Online: February 19, 2014
View Articletitled, Time-Temperature-Pressure Superposition in Polymer Thickened Liquid Lubricants
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Topics: Polymers, Pressure, Shear (Mechanics), Temperature, Viscosity, Stress, Flow (Dynamics), Lubricants, Oils, Petroleum
Journal Articles

Normalized Ashurst-Hoover Scaling and a Comprehensive Viscosity Correlation for Compressed Liquids

Scott Bair, Arno Laesecke
Journal: Journal of Tribology
Publisher: ASME
Article Type: Lubricants
J. Tribol. April 2012, 134(2): 021801.
https://doi.org/10.1115/1.4005374
Published Online: March 6, 2012
View Articletitled, Normalized Ashurst-Hoover Scaling and a Comprehensive Viscosity Correlation for Compressed Liquids
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Topics: Pressure, Viscosity, Temperature
Proceedings Papers

Lubricant Effects in Hydraulic Motor Starting Efficiency

Paul Michael, Ashlie Martini, Scott Bair, Kelly Burgess, Jose Garcia
Proc. ASME. IJTC2010, STLE/ASME 2010 International Joint Tribology Conference, 259-261, October 17–20, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2010-41262
https://doi.org/10.1115/IJTC2010-41262
View Paper titled, Lubricant Effects in Hydraulic Motor Starting Efficiency
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Topics: Hydraulic motors, Lubricants, Fluids, Friction, Motors, Pistons, Pressure, Viscosity, Displacement, Engine design
Proceedings Papers

The Role of Fragility in EHL Entrapment

Ashlie Martini, Scott Bair
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 159-161, October 19–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15110
https://doi.org/10.1115/IJTC2009-15110
View Paper titled, The Role of Fragility in EHL Entrapment
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Topics: High pressure (Physics), Lubricants, Simulation, Transients (Dynamics), Viscosity
Proceedings Papers

Modeling the Pressure and Temperature Dependence of Viscosity and Volume for Hydraulic Fluids

Scott Bair, Paul Michael
Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 193-195, October 20–22, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2008-71028
https://doi.org/10.1115/IJTC2008-71028
View Paper titled, Modeling the Pressure and Temperature Dependence of Viscosity and Volume for Hydraulic Fluids
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Topics: Fluids, Modeling, Pressure, Temperature effects, Viscosity, Compressibility, Temperature, Dynamic response, Fluid power systems, Power systems (Machinery)
Proceedings Papers

Fragility and the Dynamic Crossover in Lubricants

Scott Bair, C. M. Roland, R. Casalini
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 145-147, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44024
https://doi.org/10.1115/IJTC2007-44024
View Paper titled, Fragility and the Dynamic Crossover in Lubricants
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Topics: Lubricants, Pressure, Temperature, Traction, Viscosity measurement, Elastohydrodynamic lubrication, Glass, Glass transition, Stress, Viscosity
Proceedings Papers

A Quantitative Solution for the Full Shear-Thinning EHL Point Contact Problem Including Traction

Yuchuan Liu, Q. Jane Wang, Scott Bair, Philippe Vergne
Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 1031-1032, October 22–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2007-44100
https://doi.org/10.1115/IJTC2007-44100
View Paper titled, A Quantitative Solution for the Full Shear-Thinning EHL Point Contact Problem Including Traction
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Topics: Contact mechanics, Shear (Mechanics), Traction, Viscosity, Film thickness, Simulation, Elastohydrodynamic lubrication, Pressure
Proceedings Papers

The Actual Eyring Models for Thixotropy and Shear-Thinning: Experimental Validation and Application to EHD

Scott Bair
Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 439-445, October 24–27, 2004
Publisher: American Society of Mechanical Engineers
Paper No: TRIB2004-64017
https://doi.org/10.1115/TRIB2004-64017
View Paper titled, The Actual Eyring Models for Thixotropy and Shear-Thinning: Experimental Validation and Application to EHD
Open the PDF for The Actual Eyring Models for Thixotropy and Shear-Thinning: Experimental Validation and Application to EHD in another window
Topics: Shear (Mechanics), Thixotropy