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Journal Articles

On The Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons with Test Data

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Accepted Manuscript
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.
Paper No: GTP-25-1097
https://doi.org/10.1115/1.4068651
Published Online: May 12, 2025
View Articletitled, On The Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons with Test Data
Open the PDF for On The Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons with Test Data in another window
Topics: Fluids, Hammers, Hydrostatics, Journal bearings, Bearings, Pressure, Stiffness, Design, Load bearing capacity, Risk
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

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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. June 2025, 147(6): 061012.
Paper No: GTP-24-1603
https://doi.org/10.1115/1.4066781
Published Online: November 25, 2024
View Articletitled, Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen
Open the PDF for Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen in another window
Topics: Bearings, Journal bearings, Nitrogen, Stress, Water, Hydrostatics, Flow (Dynamics), Manufacturing, Fluids, Design
Journal Articles

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

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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. February 2025, 147(2): 021027.
Paper No: GTP-24-1501
https://doi.org/10.1115/1.4066539
Published Online: October 26, 2024
View Articletitled, Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions
Open the PDF for Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions in another window
Topics: Bearings, Rotors, Water, Fluids, Nitrogen
Proceedings Papers

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

Available to Purchase

Chaeyeon Baek, Hyunsung Jung, Junwon Heo, Kyuman Kim, Keun Ryu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A029, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129557
https://doi.org/10.1115/GT2024-129557
View Paper titled, Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen
Open the PDF for Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen in another window
Topics: Bearings, Design, Hydrostatics, Journal bearings, Lasers, Manufacturing, Nitrogen, Stress, Testing, Turbomachinery
Proceedings Papers

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

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Howon Yi, Kyuman Kim, Hyunsung Jung, Keun Ryu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A028, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129423
https://doi.org/10.1115/GT2024-129423
View Paper titled, Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions
Open the PDF for Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions in another window
Topics: Bearings, Dynamic response, Hydrostatics, Journal bearings, Nitrogen, Rotors, Water
Proceedings Papers

On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data

Available to Purchase

Hyunsung Jung, Kyuman Kim, Keun Ryu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A027, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129343
https://doi.org/10.1115/GT2024-129343
View Paper titled, On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data
Open the PDF for On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data in another window
Topics: Bearings, Fluids, Hammers, Hydrostatics, Journal bearings
Journal Articles

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

Available to Purchase
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 Articletitled, On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions
Open the PDF for On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions in another window
Topics: Bearings, Hydrostatics, Journal bearings, Nitrogen, Stress, Water, Fluids, Pressure, Flow (Dynamics)
Proceedings Papers

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

Available to Purchase

Hyunsung Jung, Kyuman Kim, Keun Ryu
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104040
https://doi.org/10.1115/GT2023-104040
View Paper titled, On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions
Open the PDF for On the Performance of Hydrostatic Journal Bearings in Air, Water, and Liquid Nitrogen: Measurements and Predictions in another window
Topics: Bearings, Hydrostatics, Journal bearings, Nitrogen, Stress, Water
Proceedings Papers

On the Pneumatic Hammer of Hybrid Gas Bearings: Measurements and Predictions

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Hyunsung Jung, Seki Sin, Kyuman Kim, Junwon Heo, Minsoo Wee, Keun Ryu
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A026, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84146
https://doi.org/10.1115/GT2022-84146
View Paper titled, On the Pneumatic Hammer of Hybrid Gas Bearings: Measurements and Predictions
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Topics: Bearings, Damping, Gas bearings, Hammers
Journal Articles

On the Pneumatic Hammer of Hybrid Gas Bearings: Measurements and Predictions

Available to Purchase
Hyunsung Jung, Seki Sin, Kyuman Kim, Junwon Heo, Minsoo Wee, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121011.
Paper No: GTP-22-1366
https://doi.org/10.1115/1.4055485
Published Online: October 7, 2022
View Articletitled, On the Pneumatic Hammer of Hybrid Gas Bearings: Measurements and Predictions
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Topics: Bearings, Damping, Hammers, Pressure, Gas bearings, Stress, Vibration