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Journal Articles

Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen

Accepted Manuscript
Chaeyeon Baek, Hyunsung Jung, Junwon Heo, Kyuman Kim, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1603
https://doi.org/10.1115/1.4066781
Published Online: October 4, 2024
View Article titled, Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen
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Topics: Design, Hydrostatics, Journal bearings, Lasers, Nitrogen, Stress, Testing, Turbomachinery, Water, Bearings
Journal Articles

The Effect of Air-Water Mixture on The Dynamic Response of A Hydrodynamic Journal Bearing With Inclined Grooves

Accepted Manuscript
Anthony Voitus, Mihai Arghir, Mohamed-Amine Hassini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1626
https://doi.org/10.1115/1.4066716
Published Online: September 28, 2024
View Article titled, The Effect of Air-Water Mixture on The Dynamic Response of A Hydrodynamic Journal Bearing With Inclined Grooves
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Topics: Dynamic response, Journal bearings, Water, Stress, Bearings, Stability, Lubricants, Friction, Nuclear power stations, Pressure
Journal Articles

Dynamic Response of a Rotor Supported On Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions

Accepted Manuscript
Howon Yi, Kyuman Kim, Hyunsung Jung, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1501
https://doi.org/10.1115/1.4066539
Published Online: September 13, 2024
View Article titled, Dynamic Response of a Rotor Supported On Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions
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Topics: Bearings, Dynamic response, Nitrogen, Rotors, Water, Fluids, Rocket engines, Fluid films, Bearing design, Databases
Journal Articles

Tilting Pad Journal Bearing Computational Fluid Dynamic Parametric Modeling for New Energy Transition Challenges

Edoardo Gheller, Vishnu Vardhan Reddy, Satish Koyyalamudi, Steven Chatterton, Daniele Panara, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2024, 146(4): 041019.
Paper No: GTP-23-1347
https://doi.org/10.1115/1.4063831
Published Online: December 26, 2023
View Article titled, Tilting Pad Journal Bearing Computational Fluid Dynamic Parametric Modeling for New Energy Transition Challenges
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Topics: Bearings, Computational fluid dynamics, Equilibrium (Physics), Journal bearings, Modeling, Temperature, Turbulence, Pressure, Flow (Dynamics)
Journal Articles

Rigid Mode Vibration Control for 250 HP Air Compressor System With Integrated Hybrid Air-Foil Magnetic Thrust Bearing ( i -HFMTB)

Yunseok Ha, Jungwan Kim, Keonwoo Jeong, Yongbok Lee
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2024, 146(4): 041002.
Paper No: GTP-23-1422
https://doi.org/10.1115/1.4063591
Published Online: December 1, 2023
View Article titled, Rigid Mode Vibration Control for 250 HP Air Compressor System With Integrated Hybrid Air-Foil Magnetic Thrust Bearing ( i -HFMTB)
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Topics: Air compressors, Compressors, Impellers, Journal bearings, Rotors, Stress, Thrust, Thrust bearings, Vibration, Cooling
Journal Articles

An Algorithm for Starved Lubricated Journal Bearings With Optionally Locked Lube Oil Feed Grooves

Thomas Hagemann, Daniel Vetter, Hubert Schwarze
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2024, 146(2): 021019.
Paper No: GTP-23-1457
https://doi.org/10.1115/1.4063528
Published Online: November 28, 2023
View Article titled, An Algorithm for Starved Lubricated Journal Bearings With Optionally Locked Lube Oil Feed Grooves
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Topics: Algorithms, Bearings, Flow (Dynamics), Journal bearings, Lubricants, Pressure, Cavitation
Journal Articles

Machine Learning-Based Optimizer for Tilting Pad Journal Bearing Inlet Flowrate

Edoardo Gheller, Steven Chatterton, Daniele Panara, Gabriele Turini, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2023, 145(12): 121017.
Paper No: GTP-23-1323
https://doi.org/10.1115/1.4063532
Published Online: October 26, 2023
View Article titled, Machine Learning-Based Optimizer for Tilting Pad Journal Bearing Inlet Flowrate
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Topics: Artificial neural networks, Bearings, Optimization, Temperature, Journal bearings, Stress, Probes
Journal Articles

The Impact of Thermal Load and Turbulent Flow on Minimum Film Thickness of a Large Tilting-Pad Journal Bearing

Daniel Vetter, Thomas Hagemann, Hubert Schwarze
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2024, 146(1): 011007.
Paper No: GTP-23-1370
https://doi.org/10.1115/1.4063383
Published Online: October 17, 2023
View Article titled, The Impact of Thermal Load and Turbulent Flow on Minimum Film Thickness of a Large Tilting-Pad Journal Bearing
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Topics: Approximation, Bearings, Clearances (Engineering), Deformation, Film thickness, Stress, Temperature, Thermomechanics, Turbulence, Journal bearings
Journal Articles

On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions

Hyunsung Jung, Kyuman Kim, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2023, 145(11): 111011.
Paper No: GTP-23-1304
https://doi.org/10.1115/1.4063282
Published Online: September 29, 2023
View Article titled, On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions
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Topics: Bearings, Hydrostatics, Journal bearings, Nitrogen, Stress, Water, Fluids, Pressure, Flow (Dynamics)
Journal Articles

Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing

Mohamed-Amine Hassini, Silun Zhang, Steven Chatterton, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2023, 145(2): 021008.
Paper No: GTP-22-1312
https://doi.org/10.1115/1.4055482
Published Online: November 28, 2022
View Article titled, Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing
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Topics: Bearings, Film thickness, Journal bearings, Pressure, Rotors, Stiffness, Stress, Temperature, Displacement, Damping
Journal Articles

Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry

Leonardo Urbiola-Soto, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2022, 144(8): 081009.
Paper No: GTP-22-1010
https://doi.org/10.1115/1.4054606
Published Online: June 20, 2022
View Article titled, Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
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Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing
Journal Articles

Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective

Chao Fu, Weidong Zhu, Jiaojiao Ma, Fengshou Gu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071012.
Paper No: GTP-22-1040
https://doi.org/10.1115/1.4054376
Published Online: May 20, 2022
View Article titled, Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective
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Topics: Bearings, Journal bearings, Uncertainty, Viscosity, Clearances (Engineering), Pressure, Lubricants, Stress, Film thickness
Journal Articles

Effect of Eccentricity and Surface Roughness on Probabilistic Performance of Two Axial Groove Bearing

Biswajit Roy, Lintu Roy, Sudip Dey
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101013.
Paper No: GTP-21-1061
https://doi.org/10.1115/1.4051910
Published Online: September 20, 2021
View Article titled, Effect of Eccentricity and Surface Roughness on Probabilistic Performance of Two Axial Groove Bearing
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Topics: Bearings, Surface roughness, Steady state, Journal bearings, Simulation, Flow (Dynamics)
Journal Articles

Nonlinear Vibration Analysis of a Flexible Rotor Supported by a Flexure Pivot Tilting Pad Journal Bearing in Comparison to a Fixed Profile Journal Bearing With Experimental Verification

Nuntaphong Koondilogpiboon, Tsuyoshi Inoue
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2021, 143(9): 091007.
Paper No: GTP-20-1468
https://doi.org/10.1115/1.4050367
Published Online: May 3, 2021
View Article titled, Nonlinear Vibration Analysis of a Flexible Rotor Supported by a Flexure Pivot Tilting Pad Journal Bearing in Comparison to a Fixed Profile Journal Bearing With Experimental Verification
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Topics: Bearings, Bifurcation, Journal bearings, Rotors, Limit cycles, Bending (Stress), Equilibrium (Physics)
Journal Articles

Influence of Manufacturing Variation on the Dynamic and Tribological Performance of Tilting Pad Journal Bearings

Leonardo Urbiola-Soto
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2021, 143(6): 061017.
Paper No: GTP-20-1254
https://doi.org/10.1115/1.4049205
Published Online: March 31, 2021
View Article titled, Influence of Manufacturing Variation on the Dynamic and Tribological Performance of Tilting Pad Journal Bearings
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Topics: Bearings, Clearances (Engineering), Design, Manufacturing, Pressure, Shells, Tribology, Journal bearings, Transfer functions, Temperature
Journal Articles

Identification of Dynamic Coefficients of a Five-Pad Tilting Pad Journal Bearing Up to Highest Surface Speeds

Philipp Zemella, Thomas Hagemann, Bastian Pfau, Hubert Schwarze
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081013.
Paper No: GTP-20-1572
https://doi.org/10.1115/1.4049664
Published Online: March 31, 2021
View Article titled, Identification of Dynamic Coefficients of a Five-Pad Tilting Pad Journal Bearing Up to Highest Surface Speeds
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Topics: Bearings, Damping, Flow (Dynamics), Stiffness, Stress, Journal bearings, Excitation, Fluid films
Journal Articles

Squeeze Film Damper Suppression of Thermal Bow-Morton Effect Instability

Dongil Shin, Alan B. Palazzolo, Xiaomeng Tong
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2020, 142(12): 121013.
Paper No: GTP-20-1389
https://doi.org/10.1115/1.4048602
Published Online: December 1, 2020
View Article titled, Squeeze Film Damper Suppression of Thermal Bow-Morton Effect Instability
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Topics: Bearings, Dampers, Damping, Rotors, Simulation, Stiffness, Vibration, Transients (Dynamics), Lubricants, Journal bearings
Journal Articles

Extended Windage Loss Models for Gas Bearing Supported Spindles Operated in Dense Gases

Kévin Rosset, Jürg Schiffmann
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2020, 142(6): 061010.
Paper No: GTP-19-1651
https://doi.org/10.1115/1.4047124
Published Online: May 29, 2020
View Article titled, Extended Windage Loss Models for Gas Bearing Supported Spindles Operated in Dense Gases
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Topics: Bearings, Cylinders, Flow (Dynamics), Friction, Gas bearings, Journal bearings, Laminar flow, Rotating disks, Skin friction (Fluid dynamics), Thrust bearings
Journal Articles

Nonlinear Vibration Prediction of a Highly Flexible Rotor Supported by an Axial Groove Journal Bearing Considering Journal Angular Whirling Motion

Nuntaphong Koondilogpiboon, Tsuyoshi Inoue
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041025.
Paper No: GTP-19-1360
https://doi.org/10.1115/1.4044761
Published Online: February 14, 2020
View Article titled, Nonlinear Vibration Prediction of a Highly Flexible Rotor Supported by an Axial Groove Journal Bearing Considering Journal Angular Whirling Motion
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Topics: Bearings, Journal bearings, Rotors, Whirls, Nonlinear vibration, Disks, Equilibrium (Physics)
Journal Articles

Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions

Giuseppe Vannini, Filippo Cangioli, Enrico Ciulli, Matteo Nuti, Paola Forte, Jongsoo Kim, Richard Livermore-Hardy
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2020, 142(3): 031004.
Paper No: GTP-19-1320
https://doi.org/10.1115/1.4045520
Published Online: January 17, 2020
View Article titled, Experiments on a Large Flexure Pivot Journal Bearing: Summary of Test Results and Comparison With Predictions
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Topics: Bearings, Bending (Stress), Design, Journal bearings, Stress, Temperature, Stiffness, Flow (Dynamics)