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Journal Articles

Optimal Design and Command Filtered Backstepping Control of Exoskeleton With Series Elastic Actuator

Cong Zhou, Cong Li, Yankui Song, Yuan Lei, Jiaxu Wang, Cheng Wang, Fujiang Zeng
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. September 2022, 144(9): 091002.
Paper No: DS-21-1377
DOI: https://doi.org/10.1115/1.4054818
Published Online: June 28, 2022
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Topics: Design, Exoskeleton devices, Knee, Seas, Errors, Actuators, Control equipment
Journal Articles

Bifurcation and Chaos of a Spur Gear Transmission System With Non-Uniform Wear

Zhibo Geng, Ke Xiao, Junyang Li, Jiaxu Wang
Journal: Journal of Vibration and Acoustics
Article Type: Research Papers
J. Vib. Acoust. June 2021, 143(3): 031004.
Paper No: VIB-20-1183
DOI: https://doi.org/10.1115/1.4048269
Published Online: October 6, 2020
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Topics: Bifurcation, Gears, Stiffness, Wear, Excitation, Spur gears, Dynamic models
Journal Articles

Nonlinear Dynamic Analysis of a Rigid–Flexible Gear Transmission Considering Geometric Eccentricities

Zhibo Geng, Ke Xiao, Jiaxu Wang, Junyang Li
Journal: Journal of Computational and Nonlinear Dynamics
Article Type: Technical Briefs
J. Comput. Nonlinear Dynam. August 2020, 15(8): 084501.
Paper No: CND-19-1416
DOI: https://doi.org/10.1115/1.4047336
Published Online: June 8, 2020
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Topics: Gears, Stiffness, Composite materials
Journal Articles

A Dynamic Wear Model for Micro-Grooved Water-Lubricated Bearings Under Transient Mixed Lubrication Condition

Guo Xiang, Yanfeng Han, Tao He, Jiaxu Wang, Ke Xiao
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. July 2020, 142(7): 071701.
Paper No: TRIB-19-1425
DOI: https://doi.org/10.1115/1.4046175
Published Online: March 2, 2020
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Topics: Bearings, Lubrication, Transients (Dynamics), Water, Wear, Stress
Journal Articles

Calculation of Gear Meshing Stiffness Considering Lubrication

Gong Cheng, Ke Xiao, Jiaxu Wang, Wei Pu, Yanfeng Han
Journal: Journal of Tribology
Article Type: Research Papers
J. Tribol. March 2020, 142(3): 031602.
Paper No: TRIB-19-1133
DOI: https://doi.org/10.1115/1.4045499
Published Online: December 9, 2019
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Topics: Gears, Lubrication, Stiffness, Surface roughness, Stress
Proceedings Papers

Numerical Investigation on the Mixed Lubrication Performance of Water-Lubricated Coupled Journal and Thrust Bearings

Yanfeng Han, Guo Xiang, Jiaxu Wang
Proc. ASME. IDETC-CIE2019, Volume 10: 2019 International Power Transmission and Gearing Conference, V010T11A002, August 18–21, 2019
Paper No: DETC2019-97234
DOI: https://doi.org/10.1115/DETC2019-97234
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Topics: Bearings, Lubrication, Thrust bearings, Water
Journal Articles

Investigation on Nonlinear Dynamic Characteristics of a New Rigid-Flexible Gear Transmission With Wear

Zhibo Geng, Ke Xiao, Jiaxu Wang, Junyang Li
Journal: Journal of Vibration and Acoustics
Article Type: Research-Article
J. Vib. Acoust. October 2019, 141(5): 051008.
Paper No: VIB-19-1023
DOI: https://doi.org/10.1115/1.4043543
Published Online: June 5, 2019
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Topics: Gears, Poincaré maps, Stiffness, Wear, Dynamic models, Phase diagrams, Excitation
Journal Articles

Micropitting Fatigue Wear Simulation in Conformal-Contact Under Mixed Elastohydrodynamic Lubrication

Hang Jia, Junyang Li, Jiaxu Wang, Guo Xiang, Ke Xiao, Yanfeng Han
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. June 2019, 141(6): 061501.
Paper No: TRIB-18-1400
DOI: https://doi.org/10.1115/1.4043180
Published Online: April 5, 2019
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Topics: Elastohydrodynamic lubrication, Fatigue, Stress, Surface roughness, Wear, Lubrication, Cycles, Simulation, Friction, Pressure
Journal Articles

A Starved Mixed Elastohydrodynamic Lubrication Model for the Prediction of Lubrication Performance, Friction and Flash Temperature With Arbitrary Entrainment Angle

Wei Pu, Dong Zhu, Jiaxu Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. May 2018, 140(3): 031501.
Paper No: TRIB-17-1173
DOI: https://doi.org/10.1115/1.4037844
Published Online: October 19, 2017
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Topics: Cavitation, Elastohydrodynamic lubrication, Film thickness, Friction, Lubrication, Pressure, Surface roughness, Temperature, Lubricants
Journal Articles

Experimental and Numerical Investigations of the Stribeck Curves for Lubricated Counterformal Contacts

Tao He, Dong Zhu, Jiaxu Wang, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. March 2017, 139(2): 021505.
Paper No: TRIB-16-1117
DOI: https://doi.org/10.1115/1.4034051
Published Online: August 24, 2016
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Topics: Boundary lubrication, Friction, Lubricants, Lubrication, Oils, Petroleum, Shear stress, Temperature, Pressure, Computer simulation
Journal Articles

Simulation of Plasto-Elastohydrodynamic Lubrication in a Rolling Contact

Tao He, Dong Zhu, Jiaxu Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. July 2016, 138(3): 031503.
Paper No: TRIB-15-1133
DOI: https://doi.org/10.1115/1.4032137
Published Online: March 11, 2016
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Topics: Cycles, Deformation, Pressure, Rolling contact, Stress, Film thickness, Lubrication, Hardening
Journal Articles

Progressive Mesh Densification Method for Numerical Solution of Mixed Elastohydrodynamic Lubrication

Wei Pu, Jiaxu Wang, Dong Zhu
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. April 2016, 138(2): 021502.
Paper No: TRIB-15-1047
DOI: https://doi.org/10.1115/1.4031495
Published Online: October 15, 2015
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Topics: Density, Elastohydrodynamic lubrication, Film thickness, Lubrication, Surface roughness, Transients (Dynamics)
Journal Articles

Mixed Elastohydrodynamic Lubrication With Three-Dimensional Machined Roughness in Spiral Bevel and Hypoid Gears

Wei Pu, Jiaxu Wang, Rongsong Yang, Dong Zhu
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. October 2015, 137(4): 041503.
Paper No: TRIB-14-1274
DOI: https://doi.org/10.1115/1.4030185
Published Online: October 1, 2015
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Topics: Friction, Gears, Geometry, Lubrication, Pressure, Spiral bevel gears, Surface roughness, Temperature, Elastohydrodynamic lubrication, Stress
Journal Articles

Simulation of Plasto-Elastohydrodynamic Lubrication in Line Contacts of Infinite and Finite Length

Tao He, Jiaxu Wang, Zhanjiang Wang, Dong Zhu
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. October 2015, 137(4): 041505.
Paper No: TRIB-14-1316
DOI: https://doi.org/10.1115/1.4030690
Published Online: October 1, 2015
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Topics: Deformation, Film thickness, Lubrication, Pressure, Stress, Simulation, Surface roughness
Journal Articles

A New Singularity Treatment Approach for Journal-Bearing Mixed Lubrication Modeled by the Finite Difference Method With a Herringbone Mesh

Yanfeng Han, Shangwu Xiong, Jiaxu Wang, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. January 2016, 138(1): 011704.
Paper No: TRIB-15-1079
DOI: https://doi.org/10.1115/1.4031138
Published Online: August 31, 2015
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Topics: Bearings, Friction, Journal bearings, Lubrication, Pressure, Stress, Surface roughness, Finite difference methods, Lubricants
Journal Articles

On the Stribeck Curves for Lubricated Counterformal Contacts of Rough Surfaces

Dong Zhu, Jiaxu Wang, Q. Jane Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. April 2015, 137(2): 021501.
Paper No: TRIB-14-1130
DOI: https://doi.org/10.1115/1.4028881
Published Online: April 1, 2015
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Topics: Film thickness, Friction, Lubricants, Lubrication, Pressure, Surface roughness, Geometry, Temperature, Shear (Mechanics), Shear stress
Journal Articles

Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling-Contact Fatigue Life

Qinghua Zhou, Lechun Xie, Xiaoqing Jin, Zhanjiang Wang, Jiaxu Wang, Leon M. Keer, Qian Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. January 2015, 137(1): 011402.
Paper No: TRIB-14-1072
DOI: https://doi.org/10.1115/1.4028406
Published Online: September 24, 2014
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Topics: Composite materials, Life testing, Titanium, Computer simulation, Rolling contact, Enterprise information management, Stress, Fatigue life, Computation
Journal Articles

A Theoretical Analysis of the Mixed Elastohydrodynamic Lubrication in Elliptical Contacts With an Arbitrary Entrainment Angle

Wei Pu, Jiaxu Wang, Ying Zhang, Dong Zhu
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. October 2014, 136(4): 041505.
Paper No: TRIB-14-1064
DOI: https://doi.org/10.1115/1.4028126
Published Online: August 25, 2014
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Topics: Film thickness, Stress, Elastohydrodynamic lubrication, Curve fitting, Lubricants
Journal Articles

Plasto-Elastohydrodynamic Lubrication in Point Contacts for Surfaces With Three-Dimensional Sinusoidal Waviness and Real Machined Roughness

Tao He, Ning Ren, Dong Zhu, Jiaxu Wang
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. July 2014, 136(3): 031504.
Paper No: TRIB-13-1215
DOI: https://doi.org/10.1115/1.4027478
Published Online: May 7, 2014
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Topics: Deformation, Lubrication, Pressure, Stress, Surface roughness, Film thickness, Hardening
Proceedings Papers

Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling Contact Fatigue Life

Qinghua Zhou, Xiaoqing Jin, Zhanjiang Wang, Jiaxu Wang, Leon M. Keer, Qian Wang
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 313-315, October 7–10, 2012
Paper No: IJTC2012-61156
DOI: https://doi.org/10.1115/IJTC2012-61156
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Topics: Computer simulation, Fatigue life, Rolling contact, Finite element methods, Enterprise information management, Fatigue, Gaussian distribution, Materials properties, Numerical analysis