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Journal Articles

Can the Bubble Surface Tension Affect the Equivalent Viscosity of Bubbly Oil?

Shuyun Jiang, Chibin Zhang, Xiaohui Lin, Shaohua Li
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. October 2025, 147(10): 104501.
Paper No: TRIB-24-1419
https://doi.org/10.1115/1.4067494
Published Online: January 20, 2025
View Article titled, Can the Bubble Surface Tension Affect the Equivalent Viscosity of Bubbly Oil?
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Topics: Bubbles, Clearances (Engineering), Surface tension, Viscosity
Journal Articles

Effect of Radial Clearance on Static and Dynamic Performances of Single-Structured Hybrid Gas-Magnetic Bearing Rotor System

Qing Liu, Mingdi Wu, Ruihuan Ge, Weipei He, Ziyu Cheng
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2025, 147(10): 104601.
Paper No: TRIB-24-1334
https://doi.org/10.1115/1.4067409
Published Online: January 17, 2025
View Article titled, Effect of Radial Clearance on Static and Dynamic Performances of Single-Structured Hybrid Gas-Magnetic Bearing Rotor System
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Topics: Bearings, Clearances (Engineering), Rotors, Stress, Vibration, Stability
Journal Articles

Rolling Element Bearing Fault Diagnosis by the Implementation of Elman Neural Networks With Long Short-Term Memory Strategy

Vishal G. Salunkhe, S. M. Khot, Nitesh P. Yelve, T. Jagadeesha, R. G. Desavale
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2025, 147(8): 084301.
Paper No: TRIB-24-1340
https://doi.org/10.1115/1.4067382
Published Online: January 13, 2025
View Article titled, Rolling Element Bearing Fault Diagnosis by the Implementation of Elman Neural Networks With Long Short-Term Memory Strategy
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Topics: Artificial neural networks, Bearings, Clearances (Engineering), Vibration
Journal Articles

DESIGN, MODELING, AND TESTING OF A NOVEL ELASTOHYDRODYNAMIC SEAL FOR SUPERCRITICAL CO 2 POWER CYCLES

Accepted Manuscript
Mohammad Fuad Hassan, Sevki Cesmeci, Karthik Reddy Lyathakula, Hanping Xu
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol.
Paper No: TRIB-24-1311
https://doi.org/10.1115/1.4067553
Published Online: January 2, 2025
View Article titled, DESIGN, MODELING, AND TESTING OF A NOVEL ELASTOHYDRODYNAMIC SEAL FOR SUPERCRITICAL CO 2 POWER CYCLES
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Topics: Design, Modeling, Seals, Supercritical carbon dioxide, Testing, Thermodynamic power cycles, Leakage, Pressure, Sealing (Process), Clearances (Engineering)
Journal Articles

Research on Working Mechanism and Structural Optimization of High-Speed Bearing of Tricone Bits Based on Finite Difference Method

Yang Liu, Yangzhou She, Wenqi Li
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2025, 147(4): 044103.
Paper No: TRIB-24-1209
https://doi.org/10.1115/1.4066946
Published Online: November 12, 2024
View Article titled, Research on Working Mechanism and Structural Optimization of High-Speed Bearing of Tricone Bits Based on Finite Difference Method
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Topics: Bearings, Clearances (Engineering), Plain bearings, Pressure, Friction, Temperature, Finite difference methods
Journal Articles

Structural Optimization of the Main Bearing in a Tunnel Boring Machine Considering Clearance

Xinqi Wang, Wei Sun, Lintao Wang, Shihu Liang, Xiaokai Mu
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2024, 146(4): 044301.
Paper No: TRIB-23-1238
https://doi.org/10.1115/1.4064019
Published Online: January 12, 2024
View Article titled, Structural Optimization of the Main Bearing in a Tunnel Boring Machine Considering Clearance
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Topics: Bearings, Clearances (Engineering), Design, Rollers, Stress, Optimization, Fatigue life
Journal Articles

Mixed Lubrication Analysis of Scrolls Lubricated With CO 2 /Oil Mixture Based on a Homogeneous Model

Chunjie Wei, Hui Song, Zhaowen Hu, Wei Wang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. November 2023, 145(11): 112201.
Paper No: TRIB-23-1053
https://doi.org/10.1115/1.4062690
Published Online: June 13, 2023
View Article titled, Mixed Lubrication Analysis of Scrolls Lubricated With CO 2 /Oil Mixture Based on a Homogeneous Model
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Topics: Carbon dioxide, Clearances (Engineering), Compressors, Lubrication, Pressure, Refrigerants, Stress, Surface roughness, Tribology, Film thickness
Journal Articles

Study on Lubricating Performance of the Bubbly Oil Under High Shear Rate—Part 1: Generation Method and Viscosity Measurement of the Bubbly Oil

Shuyun Jiang, Shaohua Li, Li Lu, Chibin Zhang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2023, 145(8): 084102.
Paper No: TRIB-23-1024
https://doi.org/10.1115/1.4062366
Published Online: May 12, 2023
View Article titled, Study on Lubricating Performance of the Bubbly Oil Under High Shear Rate—Part 1: Generation Method and Viscosity Measurement of the Bubbly Oil
Open the PDF for Study on Lubricating Performance of the Bubbly Oil Under High Shear Rate—Part 1: Generation Method and Viscosity Measurement of the Bubbly Oil in another window
Topics: Bearings, Lubrication, Shear rate, Viscosity, Viscosity measurement, Temperature, Pressure, Microbubbles, Bubbles, Clearances (Engineering)
Journal Articles

Investigation of Roller Bearing Cage Pocket Lubrication and Friction

Wyatt Peterson, Farshid Sadeghi, Andreas Meinel, Hannes Grillenberger
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2023, 145(5): 054302.
Paper No: TRIB-22-1332
https://doi.org/10.1115/1.4056649
Published Online: January 31, 2023
View Article titled, Investigation of Roller Bearing Cage Pocket Lubrication and Friction
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Topics: Bearings, Clearances (Engineering), Friction, Lubrication, Roller bearings, Rollers, Torque, Stress
Journal Articles

Effects of Axial Clearance on Surface Initiated Flaking in Tapered Roller Bearings

Ken Takahashi, Takafumi Nagatomo
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2023, 145(5): 054301.
Paper No: TRIB-22-1309
https://doi.org/10.1115/1.4056627
Published Online: January 17, 2023
View Article titled, Effects of Axial Clearance on Surface Initiated Flaking in Tapered Roller Bearings
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Topics: Bearings, Clearances (Engineering), Rollers, Stress, Tapered roller bearings, Life testing
Journal Articles

A Simulation Analysis of Ball Bearing Lubrication Characteristics Considering the Cage Clearance

Jing Liu, Hengtai Ni, Ruyi Zhou, Xinyi Li, Qinkun Xing, Guang Pan
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2023, 145(4): 044301.
Paper No: TRIB-22-1274
https://doi.org/10.1115/1.4056358
Published Online: December 26, 2022
View Article titled, A Simulation Analysis of Ball Bearing Lubrication Characteristics Considering the Cage Clearance
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Topics: Ball bearings, Bearings, Cavities, Clearances (Engineering), Flow (Dynamics), Lubricating oils, Lubrication, Dynamic models, Rotation, Computational fluid dynamics
Journal Articles

Slip Characteristics in Cylindrical Roller Bearings—Part III: Influence of Bearing Clearance on the Roller and Set Slip

Michael Dawoud, Stephan Beitler, Hubert Schwarze
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2023, 145(2): 021205.
Paper No: TRIB-22-1050
https://doi.org/10.1115/1.4055557
Published Online: November 10, 2022
View Article titled, Slip Characteristics in Cylindrical Roller Bearings—Part III: Influence of Bearing Clearance on the Roller and Set Slip
Open the PDF for Slip Characteristics in Cylindrical Roller Bearings—Part III: Influence of Bearing Clearance on the Roller and Set Slip in another window
Topics: Bearings, Clearances (Engineering), Rollers, Stress
Journal Articles

A Simplified Model for Numerical Investigation of Bump-Type Foil Bearings Based on Contact Nonlinearity

Yan Zhang, Shuhong Xiao
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. December 2022, 144(12): 121001.
Paper No: TRIB-21-1635
https://doi.org/10.1115/1.4055027
Published Online: July 29, 2022
View Article titled, A Simplified Model for Numerical Investigation of Bump-Type Foil Bearings Based on Contact Nonlinearity
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Topics: Bearings, Clearances (Engineering), Contact mechanics, Displacement, Foil bearings, Friction, Pressure, Rotors, Stiffness, Stress
Journal Articles

Static Force Characteristic of Annular Gaps – Experimental and Simulation Results

Maximilian M. G. Kuhr, Sebastian R. Lang, Peter F. Pelz
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. November 2022, 144(11): 111804.
Paper No: TRIB-21-1627
https://doi.org/10.1115/1.4054792
Published Online: July 12, 2022
View Article titled, Static Force Characteristic of Annular Gaps – Experimental and Simulation Results
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Topics: Annulus, Clearances (Engineering), Flow (Dynamics), Pressure, Reynolds number, Rotors, Simulation results
Journal Articles

Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings

Philipp K. Bättig, Patrick H. Wagner, Jürg A. Schiffmann
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. September 2022, 144(9): 091801.
Paper No: TRIB-21-1126
https://doi.org/10.1115/1.4053978
Published Online: March 18, 2022
View Article titled, Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings
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Topics: Bearings, Clearances (Engineering), Rotors
Journal Articles

Lubrication Characteristics of Water-Lubricated Rubber Bearings Based on an Improved Algorithm of the Mass Conservation Boundary Condition

Gang Liu, Ming Li
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2022, 144(8): 081804.
Paper No: TRIB-21-1403
https://doi.org/10.1115/1.4053701
Published Online: February 28, 2022
View Article titled, Lubrication Characteristics of Water-Lubricated Rubber Bearings Based on an Improved Algorithm of the Mass Conservation Boundary Condition
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Topics: Algorithms, Bearings, Boundary-value problems, Cavitation, Flow (Dynamics), Lubrication, Pressure, Water, Rubber, Fluids
Journal Articles

A Nonhomogeneous Bulk Flow Model for Gas in Liquid Flow Annular Seals: An Effort to Produce Engineering Results

Xueliang Lu, Luis San Andrés, Jing Yang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. June 2022, 144(6): 062302.
Paper No: TRIB-21-1239
https://doi.org/10.1115/1.4052678
Published Online: December 14, 2021
View Article titled, A Nonhomogeneous Bulk Flow Model for Gas in Liquid Flow Annular Seals: An Effort to Produce Engineering Results
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Topics: Flow (Dynamics), High pressure (Physics), Pressure, Leakage, Stiffness, Clearances (Engineering), Damping
Journal Articles

A Computationally Efficient, Mass Conserving Generalized Short Bearing Formulation for Dynamically Loaded Journal Bearings

S. Boedo
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051802.
Paper No: TRIB-21-1214
https://doi.org/10.1115/1.4051777
Published Online: August 3, 2021
View Article titled, A Computationally Efficient, Mass Conserving Generalized Short Bearing Formulation for Dynamically Loaded Journal Bearings
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Topics: Bearings, Cavitation, Finite element analysis, Flow (Dynamics), Journal bearings, Pressure, Stress, Density, Steady state, Clearances (Engineering)
Journal Articles

Theoretical Leakage Equations Towards Liquid-Phase Flow in the Straight-Through Labyrinth Seal

Lingsheng Han, Yongqing Wang, Kuo Liu, Ziyou Ban, Bo Qin, Haibo Liu, Minghua Dai
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. March 2022, 144(3): 031802.
Paper No: TRIB-20-1462
https://doi.org/10.1115/1.4051156
Published Online: June 8, 2021
View Article titled, Theoretical Leakage Equations Towards Liquid-Phase Flow in the Straight-Through Labyrinth Seal
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Topics: Clearances (Engineering), Flow (Dynamics), Leakage, Pressure, Steady state, Computational fluid dynamics, Subcooling, Nitrogen
Journal Articles

Analytical Determination of the Optimal Clearance for the Fatigue Life of Ball Bearing Under Different Load Conditions

Bin Fang, Jinhua Zhang
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2022, 144(2): 021203.
Paper No: TRIB-21-1056
https://doi.org/10.1115/1.4051029
Published Online: May 18, 2021
View Article titled, Analytical Determination of the Optimal Clearance for the Fatigue Life of Ball Bearing Under Different Load Conditions
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Topics: Ball bearings, Bearings, Clearances (Engineering), Fatigue life, Stress