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Journal Articles

Knudsen Maximum Effect in Micro-Scale Gas Lubrication

Haijun Zhang, Xiaojun Gu, Qin Yang, Wei Zhao, Feilong Jiang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. February 2024, 146(2): 024501.
Paper No: TRIB-23-1195
https://doi.org/10.1115/1.4063268
Published Online: October 5, 2023
View Article titled, Knudsen Maximum Effect in Micro-Scale Gas Lubrication
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Topics: Knudsen number, Lubrication, Microscale devices, Slider bearings, Stress, Bearings
Journal Articles

Slip Characteristics in Cylindrical Roller Bearings—Part II: Influence of Cage Type on Rolling Element Slip

Michael Dawoud, Stephan Beitler, Hubert Schwarze
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2023, 145(2): 021204.
Paper No: TRIB-22-1046
https://doi.org/10.1115/1.4055556
Published Online: November 10, 2022
View Article titled, Slip Characteristics in Cylindrical Roller Bearings—Part II: Influence of Cage Type on Rolling Element Slip
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Topics: Bearings, Rollers, Stress, Knudsen number
Journal Articles

Slip Characteristics in Cylindrical Roller Bearings. Part I: Influence of Cage Type on Rolling Set Slip

Michael Dawoud, Stephan Beitler, Hubert Schwarze
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2023, 145(2): 021203.
Paper No: TRIB-22-1063
https://doi.org/10.1115/1.4055555
Published Online: November 10, 2022
View Article titled, Slip Characteristics in Cylindrical Roller Bearings. Part I: Influence of Cage Type on Rolling Set Slip
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Topics: Bearings, Rollers, Knudsen number, Flow (Dynamics), Roller bearings, Stress
Journal Articles

Mechanical Power Losses of Ball Bearings: Model and Experimental Validation

A. Dindar, A. S. Chimanpure, A. Kahraman
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051603.
Paper No: TRIB-21-1177
https://doi.org/10.1115/1.4052064
Published Online: August 27, 2021
View Article titled, Mechanical Power Losses of Ball Bearings: Model and Experimental Validation
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Topics: Ball bearings, Bearings, Friction, Stress, Surface roughness, Knudsen number, Transients (Dynamics), Traction, Dynamic models, Elastohydrodynamic lubrication
Journal Articles

A Thermal Elastohydrodynamic Lubrication Model for Crowned Rollers and Its Application on Apex Seal–Housing Interfaces

Zhong Liu, David Pickens III, Tao He, Xin Zhang, Yuchuan Liu, Takayuki Nishino, Q. Jane Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2019, 141(4): 041501.
Paper No: TRIB-18-1407
https://doi.org/10.1115/1.4042503
Published Online: February 13, 2019
View Article titled, A Thermal Elastohydrodynamic Lubrication Model for Crowned Rollers and Its Application on Apex Seal–Housing Interfaces
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Topics: Elastohydrodynamic lubrication, Film thickness, Pressure, Rollers, Temperature, Knudsen number, Stress, Lubricants, Geometry
Journal Articles

Transient Motion of Hydrostatic Lead Screws With Continuous Helical Recesses

Yongtao Zhang, Changhou Lu, Wei Pan, Shujiang Chen, Yunpeng Liu
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2017, 139(1): 011703.
Paper No: TRIB-15-1375
https://doi.org/10.1115/1.4033361
Published Online: July 22, 2016
View Article titled, Transient Motion of Hydrostatic Lead Screws With Continuous Helical Recesses
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Topics: Hydrostatics, Screws, Stress, Thread, Transients (Dynamics), Knudsen number, Errors
Journal Articles

Combined Effects of Surface Roughness and Rarefaction in the Region Between High Wave Number-Limited and High Bearing Number-Limited Lubricant Flows

James White
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. January 2015, 137(1): 012001.
Paper No: TRIB-14-1133
https://doi.org/10.1115/1.4028411
Published Online: October 3, 2014
View Article titled, Combined Effects of Surface Roughness and Rarefaction in the Region Between High Wave Number-Limited and High Bearing Number-Limited Lubricant Flows
Open the PDF for Combined Effects of Surface Roughness and Rarefaction in the Region Between High Wave Number-Limited and High Bearing Number-Limited Lubricant Flows in another window
Topics: Bearings, Flow (Dynamics), Surface roughness, Knudsen number, Waves
Journal Articles

Comparison of Moving and Stationary Surface Roughness Effects on Bearing Performance, With Emphasis on High Knudsen Number Flow

James White
Journal: Journal of Tribology
Publisher: ASME
Article Type: Hydrodynamic Lubrication
J. Tribol. July 2012, 134(3): 031705.
https://doi.org/10.1115/1.4006408
Published Online: June 18, 2012
View Article titled, Comparison of Moving and Stationary Surface Roughness Effects on Bearing Performance, With Emphasis on High Knudsen Number Flow
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Topics: Bearings, Clearances (Engineering), Flow (Dynamics), Lubrication, Surface roughness, Lubricants, Knudsen number
Journal Articles

Surface Roughness Effects on Air Bearing Performance Over a Wide Range of Knudsen and Wave Numbers

James White
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 031703.
https://doi.org/10.1115/1.4001848
Published Online: June 24, 2010
View Article titled, Surface Roughness Effects on Air Bearing Performance Over a Wide Range of Knudsen and Wave Numbers
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Topics: Bearings, Knudsen number, Pressure, Surface roughness, Waves, Poiseuille flow, Air bearings, Flow (Dynamics), Lubrication
Journal Articles

A Gas Lubrication Equation for High Knudsen Number Flows and Striated Rough Surfaces

James White
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2010, 132(2): 021701.
https://doi.org/10.1115/1.4001023
Published Online: March 24, 2010
View Article titled, A Gas Lubrication Equation for High Knudsen Number Flows and Striated Rough Surfaces
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Topics: Lubrication, Surface roughness, Knudsen number, Disks, Flow (Dynamics), Bearings, Pressure
Journal Articles

Characteristics of Micro Gas Journal Bearings Based on Effective Viscosity

Haijun Zhang, Changsheng Zhu, Qin Yang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2009, 131(4): 041707.
https://doi.org/10.1115/1.3209145
Published Online: September 24, 2009
View Article titled, Characteristics of Micro Gas Journal Bearings Based on Effective Viscosity
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Topics: Bearings, Journal bearings, Viscosity, Knudsen number, Stress
Journal Articles

Linear Stability Analysis of the Herringbone Groove Journal Bearings in Microsystems: Consideration of Gas Rarefaction Effects

Wang-Long Li, Rui-Wen Shen
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2009, 131(4): 041705.
https://doi.org/10.1115/1.3201872
Published Online: September 23, 2009
View Article titled, Linear Stability Analysis of the Herringbone Groove Journal Bearings in Microsystems: Consideration of Gas Rarefaction Effects
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Topics: Bearings, Journal bearings, Microelectromechanical systems, Rotors, Stability, Flow (Dynamics), Knudsen number, Pressure, Damping, Film thickness
Journal Articles

The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings—Part II: Comparison Between Theory and Experiment

Niels Heinrichson, Axel Fuerst, Ilmar Ferreira Santos
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 904–912.
https://doi.org/10.1115/1.2768610
Published Online: June 19, 2007
View Article titled, The Influence of Injection Pockets on the Performance of Tilting-Pad Thrust Bearings—Part II: Comparison Between Theory and Experiment
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Topics: Film thickness, Flow (Dynamics), Knudsen number, Pressure, Stress, Thrust bearings, High pressure (Physics), Simulation, Bearings, Computer simulation
Journal Articles

Experimental Investigation of the Influence of Supply Temperature and Supply Pressure on the Performance of a Two-Axial Groove Hydrodynamic Journal Bearing

F. P. Brito, A. S. Miranda, J. Bouyer, M. Fillon
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. January 2007, 129(1): 98–105.
https://doi.org/10.1115/1.2401206
Published Online: June 23, 2006
View Article titled, Experimental Investigation of the Influence of Supply Temperature and Supply Pressure on the Performance of a Two-Axial Groove Hydrodynamic Journal Bearing
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Topics: Bearings, Knudsen number, Pressure, Stress, Temperature, Flow (Dynamics), Journal bearings
Journal Articles

Homogenization of the Generalized Reynolds Equation for Ultra-Thin Gas Films and Its Resolution by FEM

G. C. Buscaglia, M. Jai
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. July 2004, 126(3): 547–552.
https://doi.org/10.1115/1.1739410
Published Online: June 28, 2004
View Article titled, Homogenization of the Generalized Reynolds Equation for Ultra-Thin Gas Films and Its Resolution by FEM
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Topics: Disks, Finite element methods, Resolution (Optics), Surface roughness, Texture (Materials), Finite element analysis, Knudsen number, Lubrication, Shapes, Pressure
Journal Articles

New First and Second Order Slip Models for the Compressible Reynolds Equation

Lin Wu, D. B. Bogy
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. July 2003, 125(3): 558–561.
https://doi.org/10.1115/1.1538620
Published Online: June 19, 2003
View Article titled, New First and Second Order Slip Models for the Compressible Reynolds Equation
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Topics: Lubrication, Pressure, Knudsen number, Mean free path, Momentum
Journal Articles

Compressible Narrow Groove Analysis—Part 2: Computation of Pressure Field in a Spherical Device Rotating in Either Direction

Coda H. T. Pan
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 1998, 120(4): 765–771.
https://doi.org/10.1115/1.2833777
Published Online: October 1, 1998
View Article titled, Compressible Narrow Groove Analysis—Part 2: Computation of Pressure Field in a Spherical Device Rotating in Either Direction
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Topics: Computation, Pressure, Compressibility, Modeling, Resolution (Optics), Rotation, Thin films, Design, Evacuations, Gas bearings
Journal Articles

Ultra-Thin Gas Squeeze Film Characteristics for Infinitely Large Squeeze Number

Wang-Long Li
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 1998, 120(4): 750–757.
https://doi.org/10.1115/1.2833775
Published Online: October 1, 1998
View Article titled, Ultra-Thin Gas Squeeze Film Characteristics for Infinitely Large Squeeze Number
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Topics: Bearings, Boundary-value problems, Composite materials, Knudsen number, Lubrication, Surface roughness
Journal Articles

Roughness Effects on the Dynamic Coefficients of Ultra-Thin Gas Film in Magnetic Recording

Wang-Long Li, Cheng-I Weng, Chi-Chuan Hwang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 1996, 118(4): 774–782.
https://doi.org/10.1115/1.2831608
Published Online: October 1, 1996
View Article titled, Roughness Effects on the Dynamic Coefficients of Ultra-Thin Gas Film in Magnetic Recording
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Topics: Magnetic recording, Surface roughness, Damping, Knudsen number, Bearings, Film thickness, Flow (Dynamics), Gas bearings, Lubricants, Stability
Journal Articles

Analysis of a Gas Lubricated Hydrodynamic Thrust Bearing

S. J. Hughes, S. I. Hogg, T. V. Jones
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 1996, 118(3): 449–456.
https://doi.org/10.1115/1.2831557
Published Online: July 1, 1996
View Article titled, Analysis of a Gas Lubricated Hydrodynamic Thrust Bearing
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Topics: Thrust bearings, Bearings, Clearances (Engineering), Lubrication, Pressure, Design, Transients (Dynamics), Dynamics (Mechanics), Flow (Dynamics), Fluctuations (Physics)