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Journal Articles

Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability In Hydrostatic Thrust Bearings: Analysis And Experimental Validation

Accepted Manuscript
Homin Lim, 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-24-1601
https://doi.org/10.1115/1.4066780
Published Online: October 4, 2024
View Article titled, Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability In Hydrostatic Thrust Bearings: Analysis And Experimental Validation
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Topics: Hammers, Hydrostatics, Thrust bearings, Bearings, Stress, Design, Stiffness, Damping, Fluids, Friction
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

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

Effect of Air-Liquid Homogeneous Mixture on the Linear Dynamic Characteristics of a Hydrostatic Journal Bearing

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. December 2023, 145(12): 121018.
Paper No: GTP-23-1333
https://doi.org/10.1115/1.4063523
Published Online: October 26, 2023
View Article titled, Effect of Air-Liquid Homogeneous Mixture on the Linear Dynamic Characteristics of a Hydrostatic Journal Bearing
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Topics: Bearings, Flow (Dynamics), Hydrostatics, Viscosity, Inertia (Mechanics), Pressure, Stiffness
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

Experimental Force Coefficients of a Hydrostatic Thrust Bearing and Comparisons to Predictions

Homin Lim, 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): 111010.
Paper No: GTP-23-1303
https://doi.org/10.1115/1.4063308
Published Online: September 29, 2023
View Article titled, Experimental Force Coefficients of a Hydrostatic Thrust Bearing and Comparisons to Predictions
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Topics: Bearings, Film thickness, Hydrostatics, Stress, Thrust bearings, Pressure, Stiffness, Hammers, Thrust
Journal Articles

Design Methodology and Concept Demonstration of Preassembled Additively Manufactured Turbomachinery Systems: Case Study of Turbocharger Based Medical Ventilators

Acar Çelik, David Linsky, Ron Miezner, Alex Kleiman, Boris Leizeronok, Michael Palman, Sercan Acarer, Beni Cukurel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121010.
Paper No: GTP-22-1353
https://doi.org/10.1115/1.4055461
Published Online: October 7, 2022
View Article titled, Design Methodology and Concept Demonstration of Preassembled Additively Manufactured Turbomachinery Systems: Case Study of Turbocharger Based Medical Ventilators
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Topics: Additive manufacturing, Bearings, Biomedicine, Design, Flow (Dynamics), Hydrostatics, Pressure, Turbines, Turbomachinery, Manufacturing
Journal Articles

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Experimental Evaluation and Fluid–Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081023.
Paper No: GTP-20-1671
https://doi.org/10.1115/1.4050864
Published Online: May 7, 2021
View Article titled, Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Experimental Evaluation and Fluid–Structure Model Predictions
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Topics: Bearings, Fluids, Stress, Thrust, Thrust bearings, Turbomachinery, Pressure, Clearances (Engineering), Flow (Dynamics), Supercritical carbon dioxide
Journal Articles

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Design and Proof of Concept Testing

Bugra Ertas
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081024.
Paper No: GTP-20-1710
https://doi.org/10.1115/1.4050865
Published Online: May 7, 2021
View Article titled, Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Design and Proof of Concept Testing
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Topics: Bearings, Design, Stress, Testing, Thrust, Thrust bearings, Turbomachinery, Additive manufacturing, Springs, Stiffness
Journal Articles

Static Performance of a Hydrostatic Thrust Foil Bearing for Large Scale Oil-Free Turbomachines

Nguyen LaTray, Daejong Kim, Myongsok Song
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041017.
Paper No: GTP-20-1721
https://doi.org/10.1115/1.4049884
Published Online: February 26, 2021
View Article titled, Static Performance of a Hydrostatic Thrust Foil Bearing for Large Scale Oil-Free Turbomachines
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Topics: Bearings, Deflection, Film thickness, Foil bearings, Hydrostatics, Pressure, Stress, Thrust, Turbomachinery, Disks
Journal Articles

Measurements Versus Predictions for a Hybrid (Hydrostatic Plus Hydrodynamic) Thrust Bearing for a Range of Orifice Diameters

Dara W. Childs, Paul Esser
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2019, 141(6): 061015.
Paper No: GTP-18-1432
https://doi.org/10.1115/1.4042721
Published Online: February 21, 2019
View Article titled, Measurements Versus Predictions for a Hybrid (Hydrostatic Plus Hydrodynamic) Thrust Bearing for a Range of Orifice Diameters
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Topics: Bearings, Clearances (Engineering), Flow (Dynamics), Pressure, Stress, Thrust bearings, Stiffness, Rotors, Hydrostatics
Journal Articles

Static Load Performance of a Water-Lubricated Hydrostatic Thrust Bearing

Michael Rohmer, Luis San Andrés, Scott Wilkinson
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 062401.
Paper No: GTP-17-1419
https://doi.org/10.1115/1.4038472
Published Online: February 27, 2018
View Article titled, Static Load Performance of a Water-Lubricated Hydrostatic Thrust Bearing
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Topics: Bearings, Clearances (Engineering), Flow (Dynamics), Hydrostatics, Pressure, Rotors, Stress, Thrust bearings, Water, Thrust
Journal Articles

Investigation of Hydrostatic Fluid Forces in Varying Clearance Turbomachinery Seals

S. M. Tibos, C. Georgakis, J. A. Teixeira, S. Hogg
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052502.
Paper No: GTP-16-1576
https://doi.org/10.1115/1.4038136
Published Online: November 21, 2017
View Article titled, Investigation of Hydrostatic Fluid Forces in Varying Clearance Turbomachinery Seals
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Topics: Clearances (Engineering), Design, Fitness-for-service, Fluids, Hydrostatics, Pressure, Stiffness, Flow (Dynamics), Modeling
Journal Articles

Rotordynamic Performance of Hybrid Air Foil Bearings With Regulated Hydrostatic Injection

Behzad Zamanian Yazdi, Daejong Kim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2018, 140(1): 012506.
Paper No: GTP-17-1278
https://doi.org/10.1115/1.4037667
Published Online: September 19, 2017
View Article titled, Rotordynamic Performance of Hybrid Air Foil Bearings With Regulated Hydrostatic Injection
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Topics: Bearings, Foil bearings, Hydrostatics, Rotors, Vibration, Engineering simulation, Simulation, Stability, Clearances (Engineering), Pressure
Journal Articles

Effect of Recess Shape on the Performance of a High-Speed Hybrid Journal Bearing

Alexandrina Untaroiu, Gen Fu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2017, 139(11): 112501.
Paper No: GTP-16-1076
https://doi.org/10.1115/1.4036946
Published Online: June 21, 2017
View Article titled, Effect of Recess Shape on the Performance of a High-Speed Hybrid Journal Bearing
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Topics: Bearings, Computational fluid dynamics, Design, Friction, Geometry, Journal bearings, Lift (Fluid dynamics), Optimization, Pressure, Regression models
Journal Articles

Investigation of Effective Groove Types for a Film Riding Seal

S. M. Tibos, J. A. Teixeira, C. Georgakis
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072503.
Paper No: GTP-16-1494
https://doi.org/10.1115/1.4035601
Published Online: February 14, 2017
View Article titled, Investigation of Effective Groove Types for a Film Riding Seal
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Topics: Computational fluid dynamics, Design, Gas turbines, Hydrostatics, Optimization, Pressure, Stress, Modeling, Sealing (Process), Lift (Fluid dynamics)
Journal Articles

A Water-Lubricated Hybrid Thrust Bearing: Measurements and Predictions of Static Load Performance

Luis San Andrés, Stephen Phillips, Dara Childs
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2017, 139(2): 022506.
Paper No: GTP-16-1272
https://doi.org/10.1115/1.4034042
Published Online: September 13, 2016
View Article titled, A Water-Lubricated Hybrid Thrust Bearing: Measurements and Predictions of Static Load Performance
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Topics: Bearings, Clearances (Engineering), Flow (Dynamics), Pressure, Rotors, Stress, Thrust bearings, Water, Thrust, Hydrostatics
Journal Articles

Modeling and Analysis of Micro Hybrid Gas Spiral-Grooved Thrust Bearing for Microengine

Xiao-Qing Zhang, Xiao-Li Wang, Ren Liu, Yu-Yan Zhang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2013, 135(12): 122508.
Paper No: GTP-13-1180
https://doi.org/10.1115/1.4025239
Published Online: September 23, 2013
View Article titled, Modeling and Analysis of Micro Hybrid Gas Spiral-Grooved Thrust Bearing for Microengine
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Topics: Bearings, Microfabrication, Orifices, Pressure, Stress, Thrust bearings, Stiffness, Hydrostatics, Steady state, Modeling
Journal Articles

Steady-State and Transient Behavior of Gas/Liquid Phase Boundaries in Impulse Pipes

Stephan Schulz, Rainer Hampel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2013, 135(3): 032903.
Paper No: GTP-12-1367
https://doi.org/10.1115/1.4007874
Published Online: February 21, 2013
View Article titled, Steady-State and Transient Behavior of Gas/Liquid Phase Boundaries in Impulse Pipes
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Topics: Boiling water reactors, Computational fluid dynamics, Drainage, Dynamics (Mechanics), Ethanol, Flow (Dynamics), Hydrostatics, Simulation, Steady state, Temperature
Journal Articles

Design and Performance Prediction of Hybrid Air Foil Thrust Bearings

Donghyun Lee, Daejong Kim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2011, 133(4): 042501.
https://doi.org/10.1115/1.4002249
Published Online: November 18, 2010
View Article titled, Design and Performance Prediction of Hybrid Air Foil Thrust Bearings
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Topics: Bearings, Damping, Deflection, Design, Hydrostatics, Pressure, Stiffness, Thrust, Thrust bearings, Turbomachinery