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Journal Articles

Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method

Bo Zhang, Xi Chen, Fengguang Xiang, Xiaohua Gan, Guangming Ren
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061008.
Paper No: GTP-22-1555
DOI: https://doi.org/10.1115/1.4056048
Published Online: January 13, 2023
View Article titled, Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method
Click here to open pdf in another window PDF for Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method
Topics: Dampers, Excitation, Rotation, Rotors, Steady state, Displacement, Yaw
Journal Articles

Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types

Adolfo Delgado, Luis San Andrés, Jing Yang, Jonathan Thiele
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051019.
Paper No: GTP-22-1478
DOI: https://doi.org/10.1115/1.4056347
Published Online: January 10, 2023
View Article titled, Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
Click here to open pdf in another window PDF for Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
Topics: Computational fluid dynamics, Dampers, Damping, Excitation, Flow (Dynamics), Leakage, Pressure, Rotors, Stiffness, Stability
Journal Articles

A Model and Experimental Validation for a Piston Rings—Squeeze Film Damper: A Step Toward Quantifying Air Ingestion

Bonjin Koo, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041012.
Paper No: GTP-22-1403
DOI: https://doi.org/10.1115/1.4055712
Published Online: December 13, 2022
View Article titled, A Model and Experimental Validation for a Piston Rings—Squeeze Film Damper: A Step Toward Quantifying Air Ingestion
Click here to open pdf in another window PDF for A Model and Experimental Validation for a Piston Rings—Squeeze Film Damper: A Step Toward Quantifying Air Ingestion
Topics: Dampers, Damping, Pressure, Piston rings, Pistons, Lubricants, Whirls
Journal Articles

A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump

Zhihong Jin, Kai Mao, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031025.
Paper No: GTP-22-1247
DOI: https://doi.org/10.1115/1.4055351
Published Online: December 8, 2022
View Article titled, A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
Click here to open pdf in another window PDF for A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
Topics: Damping, Impellers, Leakage, Oxygen, Rotors, Sealing (Process), Stators, Stiffness, Stress, Whirls
Journal Articles

Analyses of Damping Sustainability of Additively Manufactured Nickel Alloy Components Subjected to High Strain Loading Cycles

John P. Hollkamp, Onome Scott-Emuakpor, Dino Celli
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031011.
Paper No: GTP-22-1462
DOI: https://doi.org/10.1115/1.4055579
Published Online: December 5, 2022
View Article titled, Analyses of Damping Sustainability of Additively Manufactured Nickel Alloy Components Subjected to High Strain Loading Cycles
Click here to open pdf in another window PDF for Analyses of Damping Sustainability of Additively Manufactured Nickel Alloy Components Subjected to High Strain Loading Cycles
Topics: Damping, Particulate matter, Sustainability, Lasers, Additive manufacturing, Dampers
Journal Articles

Nonlinear Damper-Blade Coupling Calculations Reduced to Essentials

Chiara Gastaldi, Muzio M. Gola
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2023, 145(2): 021016.
Paper No: GTP-22-1427
DOI: https://doi.org/10.1115/1.4055414
Published Online: November 29, 2022
View Article titled, Nonlinear Damper-Blade Coupling Calculations Reduced to Essentials
Click here to open pdf in another window PDF for Nonlinear Damper-Blade Coupling Calculations Reduced to Essentials
Topics: Blades, Cycles, Dampers, Rotation, Excitation, Vibration
Journal Articles

An Experimental Investigation on the Dynamic Response Variability of a Turbine Blade With Midspan Dampers

Erhan Ferhatoglu, Daniele Botto, Stefano Zucca
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011002.
Paper No: GTP-22-1373
DOI: https://doi.org/10.1115/1.4055494
Published Online: October 19, 2022
View Article titled, An Experimental Investigation on the Dynamic Response Variability of a Turbine Blade With Midspan Dampers
Click here to open pdf in another window PDF for An Experimental Investigation on the Dynamic Response Variability of a Turbine Blade With Midspan Dampers
Topics: Blades, Dampers, Friction
Journal Articles

A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation

Jose Torres, Luis San Andrés, Jing Yang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011006.
Paper No: GTP-22-1390
DOI: https://doi.org/10.1115/1.4055665
Published Online: October 19, 2022
View Article titled, A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation
Click here to open pdf in another window PDF for A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation
Topics: Clearances (Engineering), Dampers, Damping, Flow (Dynamics), Leakage, Pressure, Stiffness, Computational fluid dynamics, Excitation, Rotors
Journal Articles

Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery

Zhigang Li, Zhuocong Li, Jun Li, Zhenping Feng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071006.
Paper No: GTP-21-1636
DOI: https://doi.org/10.1115/1.4054374
Published Online: May 20, 2022
View Article titled, Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery
Click here to open pdf in another window PDF for Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery
Topics: Brakes, Cavities, Clearances (Engineering), Dampers, Damping, Fluids, Pressure, Rotors, Stiffness, Supercritical carbon dioxide
Journal Articles

Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers

Erhan Ferhatoglu, Stefano Zucca, Daniele Botto, Jury Auciello, Lorenzo Arcangeli
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041021.
Paper No: GTP-21-1567
DOI: https://doi.org/10.1115/1.4053107
Published Online: February 21, 2022
View Article titled, Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers
Click here to open pdf in another window PDF for Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers
Topics: Blades, Dampers, Disks, Friction, Stress, Resonance, Nonlinear vibration, Turbines, Vibration
Journal Articles

Impact of Mistuned Underplatform Dampers on the Nonlinear Vibration of Bladed Disks

Samuel Quaegebeur, Benjamin Chouvion, Fabrice Thouverez
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121023.
Paper No: GTP-21-1277
DOI: https://doi.org/10.1115/1.4051868
Published Online: October 13, 2021
View Article titled, Impact of Mistuned Underplatform Dampers on the Nonlinear Vibration of Bladed Disks
Click here to open pdf in another window PDF for Impact of Mistuned Underplatform Dampers on the Nonlinear Vibration of Bladed Disks
Topics: Dampers, Disks, Displacement, Friction, Optimization, Blades, Nonlinear vibration
Journal Articles

An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?

Jing Yang, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121016.
Paper No: GTP-21-1296
DOI: https://doi.org/10.1115/1.4051916
Published Online: October 12, 2021
View Article titled, An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?
Click here to open pdf in another window PDF for An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?
Topics: Dampers, Flow (Dynamics), Leakage, Pressure, Two-phase flow, Computational fluid dynamics, Blades, Cavities, Rotors, Clearances (Engineering)
Journal Articles

On the Performance of Wavy Dry Friction and Piezoelectric Hybrid Flexible Dampers

Y. G. Wu, Y. Fan, L. Li, Z. M. Zhao
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121010.
Paper No: GTP-21-1317
DOI: https://doi.org/10.1115/1.4051955
Published Online: October 5, 2021
View Article titled, On the Performance of Wavy Dry Friction and Piezoelectric Hybrid Flexible Dampers
Click here to open pdf in another window PDF for On the Performance of Wavy Dry Friction and Piezoelectric Hybrid Flexible Dampers
Topics: Dampers, Damping, Dry friction, Friction, Resonance, Vibration
Journal Articles

Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors

Ryota Takeuchi, Hidetsugu Ishimaru, Hideaki Yamashita, Takahiko Inoue, Shota Yabui, Tsuyoshi Inoue
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121006.
Paper No: GTP-21-1342
DOI: https://doi.org/10.1115/1.4051986
Published Online: October 4, 2021
View Article titled, Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors
Click here to open pdf in another window PDF for Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors
Topics: Bearings, Cavitation, Compressors, Dampers, Damping, Excitation, Fluids, Springs, Pressure, Stiffness
Journal Articles

On the Experimental Dynamic Force Performance of a Squeeze Film Damper Supplied Through a Check Valve and Sealed With O-Rings

Luis San Andrés, Bryan Rodríguez
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111011.
Paper No: GTP-21-1380
DOI: https://doi.org/10.1115/1.4051964
Published Online: September 30, 2021
View Article titled, On the Experimental Dynamic Force Performance of a Squeeze Film Damper Supplied Through a Check Valve and Sealed With O-Rings
Click here to open pdf in another window PDF for On the Experimental Dynamic Force Performance of a Squeeze Film Damper Supplied Through a Check Valve and Sealed With O-Rings
Topics: Dampers, Damping, Lubricants, Pressure, Seals, Stiffness, Valves, Stress
Journal Articles

An Accelerating Sweep Frequency Excitation Method for the Rotordynamic Coefficients Identification of Annular Gas Seals Based on Computational Fluid Dynamics

Qianlei Gu, Jiangang Yang, Wanfu Zhang, Mingjie Zhang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2021, 143(9): 091021.
Paper No: GTP-20-1814
DOI: https://doi.org/10.1115/1.4051101
Published Online: June 17, 2021
View Article titled, An Accelerating Sweep Frequency Excitation Method for the Rotordynamic Coefficients Identification of Annular Gas Seals Based on Computational Fluid Dynamics
Click here to open pdf in another window PDF for An Accelerating Sweep Frequency Excitation Method for the Rotordynamic Coefficients Identification of Annular Gas Seals Based on Computational Fluid Dynamics
Topics: Computational fluid dynamics, Computer simulation, Damping, Excitation, Rotors, Transients (Dynamics), Whirls, Resolution (Optics), Dampers, Stiffness
Journal Articles

Leakage and Rotordynamic Characteristics for Three Types of Annular Gas Seals Operating in Supercritical CO 2 Turbomachinery

Zhigang Li, Zhuocong Li, Jun Li, Zhenping Feng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101002.
Paper No: GTP-21-1024
DOI: https://doi.org/10.1115/1.4051104
Published Online: June 17, 2021
View Article titled, Leakage and Rotordynamic Characteristics for Three Types of Annular Gas Seals Operating in Supercritical CO 2 Turbomachinery
Click here to open pdf in another window PDF for Leakage and Rotordynamic Characteristics for Three Types of Annular Gas Seals Operating in Supercritical CO 2 Turbomachinery
Topics: Brakes, Cavities, Dampers, Damping, Fluids, Leakage, Pressure, Rotors, Stiffness, 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
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081024.
Paper No: GTP-20-1710
DOI: 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
Click here to open pdf in another window PDF for Additively Manufactured Compliant Hybrid Gas Thrust Bearing for Supercritical Carbon Dioxide Turbomachinery: Design and Proof of Concept Testing
Topics: Bearings, Design, Stress, Testing, Thrust, Thrust bearings, Turbomachinery, Additive manufacturing, Springs, Stiffness
Journal Articles

Platform-Centered Reduction: A Process Capturing the Essentials for Blade-Damper Coupled Optimization

Chiara Gastaldi, Muzio M. Gola
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2021, 143(8): 081001.
Paper No: GTP-20-1470
DOI: https://doi.org/10.1115/1.4049187
Published Online: March 31, 2021
View Article titled, Platform-Centered Reduction: A Process Capturing the Essentials for Blade-Damper Coupled Optimization
Click here to open pdf in another window PDF for Platform-Centered Reduction: A Process Capturing the Essentials for Blade-Damper Coupled Optimization
Topics: Airfoils, Blades, Dampers, Excitation, Design, Optimization
Journal Articles

Experimental Evaluation of Dynamic Characteristics of Circular Arc Spring Dampers for Rotating Machinery

Ryota Takeuchi, Hidetsugu Ishimaru, Hideaki Yamashita, Shota Yabui, Tsuyoshi Inoue
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2021, 143(6): 061008.
Paper No: GTP-20-1481
DOI: https://doi.org/10.1115/1.4049164
Published Online: March 15, 2021
View Article titled, Experimental Evaluation of Dynamic Characteristics of Circular Arc Spring Dampers for Rotating Machinery
Click here to open pdf in another window PDF for Experimental Evaluation of Dynamic Characteristics of Circular Arc Spring Dampers for Rotating Machinery
Topics: Dampers, Damping, Machinery, Shock absorbers, Springs, Stiffness, Excitation, Clearances (Engineering)