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Journal Articles

Numerical Investigation on the Leakage and Rotordynamic Characteristics for a Hole-Pattern Seal in Wet-Gas Conditions

Zhi Fang, Zhigang Li, Jun Li

J. Eng. Gas Turbines Power. June 2023, 145(6): 061003.

Paper No: GTP-22-1241

DOI: https://doi.org/10.1115/1.4056310

Published Online: January 13, 2023

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Topics: Damping, Leakage, Numerical analysis, Pressure, Rotors, Stiffness, Clearances (Engineering), Leakage flows, Cavities, Oscillating frequencies

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

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

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Topics: Computational fluid dynamics, Dampers, Damping, Excitation, Flow (Dynamics), Leakage, Pressure, Rotors, Stiffness, Stability

Journal Articles

Experimental Investigation of Friction Damping in Blade Root Joints

Daniele Botto, Federica Cuccovillo, Veronica Iannotti

J. Eng. Gas Turbines Power. May 2023, 145(5): 051010.

Paper No: GTP-22-1539

DOI: https://doi.org/10.1115/1.4056099

Published Online: December 22, 2022

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Topics: Blades, Damping, Displacement, Friction, Stress, Stiffness, Vibration, Signals, Lubricants

Journal Articles

The Numerical and Experimental Evaluation of a Coupled Blade Dynamic Limit Response With Friction Contacts

Kelly Grant, Chiara Gastaldi, Teresa M. Berruti, Rudolf Kellerer

J. Eng. Gas Turbines Power. April 2023, 145(4): 041022.

Paper No: GTP-22-1469

DOI: https://doi.org/10.1115/1.4055786

Published Online: December 14, 2022

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Topics: Blades, Displacement, Excitation, Friction, Strain gages, Damping, Stiffness

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

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

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Topics: Damping, Impellers, Leakage, Oxygen, Rotors, Sealing (Process), Stators, Stiffness, Stress, Whirls

Journal Articles

Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator

Dara W. Childs, Jing Yang, Luis San Andrés, Jose M. Torres Rueda, James Alex Moreland

J. Eng. Gas Turbines Power. March 2023, 145(3): 031005.

Paper No: GTP-22-1435

DOI: https://doi.org/10.1115/1.4055638

Published Online: December 5, 2022

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Topics: Leakage, Rotors, Stators, Stiffness, Damping, Pumps

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

J. Eng. Gas Turbines Power. February 2023, 145(2): 021008.

Paper No: GTP-22-1312

DOI: https://doi.org/10.1115/1.4055482

Published Online: November 28, 2022

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Topics: Bearings, Film thickness, Journal bearings, Pressure, Rotors, Stiffness, Stress, Temperature, Displacement, Damping

Journal Articles

Static and Rotordynamic Characteristics for Supercritical Carbon Dioxide Spiral Groove Dry Gas Seal With the Tilted Seal Ring

Tao Yuan, Zhigang Li, Jun Li, Qi Yuan

J. Eng. Gas Turbines Power. January 2023, 145(1): 011011.

Paper No: GTP-22-1145

DOI: https://doi.org/10.1115/1.4055787

Published Online: October 20, 2022

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Topics: Damping, Displacement, Film thickness, Fluid films, Fluids, Leakage, Pressure, Sealing (Process), Stiffness, Supercritical carbon dioxide

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

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

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Topics: Clearances (Engineering), Dampers, Damping, Flow (Dynamics), Leakage, Pressure, Stiffness, Computational fluid dynamics, Excitation, Rotors

Journal Articles

Reduced Order Modeling of Forced Response in a Multistage Compressor Under Mistuning and Aerocoupling

Niklas Maroldt, Lukas Schwerdt, Ricarda Berger, Lars Panning-von Scheidt, Raimund Rolfes, Jörg Wallaschek, Joerg R. Seume

J. Eng. Gas Turbines Power. November 2022, 144(11): 111017.

Paper No: GTP-22-1317

DOI: https://doi.org/10.1115/1.4055368

Published Online: September 22, 2022

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Topics: Acoustics, Blades, Compressors, Damping, Excitation, Fatigue, Rotors, Stiffness, Vibration, Modeling

Journal Articles

Identification of Mistuning Based on Forced Response Measurements and Assessment for a Real Compressor Blisk

Benjamin Seeger, Lukas Kohlmann, Harald Schoenenborn, Stefan Schwarz, Malte Krack

J. Eng. Gas Turbines Power. September 2022, 144(9): 091006.

Paper No: GTP-22-1116

DOI: https://doi.org/10.1115/1.4055019

Published Online: August 1, 2022

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Topics: Blades, Cantilevers, Damping, Frequency response, Stiffness, Compressors, Resonance, Excitation, Vibration, Electromagnetic spectrum

Journal Articles

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

Leonardo Urbiola-Soto, Paolo Pennacchi

J. Eng. Gas Turbines Power. August 2022, 144(8): 081009.

Paper No: GTP-22-1010

DOI: https://doi.org/10.1115/1.4054606

Published Online: June 20, 2022

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Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing

Journal Articles

Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings

Jason Wilkes, Steve White

J. Eng. Gas Turbines Power. July 2022, 144(7): 071008.

Paper No: GTP-22-1015

DOI: https://doi.org/10.1115/1.4054059

Published Online: May 20, 2022

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Topics: Bearings, Damping, Foil bearings, Pressure, Stiffness, Gas bearings

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

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

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Topics: Brakes, Cavities, Clearances (Engineering), Dampers, Damping, Fluids, Pressure, Rotors, Stiffness, Supercritical carbon dioxide

Journal Articles

Numerical and Experimental Study on Rod-Fastened Rotor Dynamics Using Semi-Analytical Elastic-Plastic Model

Wenzhen Xie, Chao Liu, Gancai Huang, Dongxiang Jiang

J. Eng. Gas Turbines Power. June 2022, 144(6): 064501.

Paper No: GTP-21-1505

DOI: https://doi.org/10.1115/1.4053780

Published Online: March 11, 2022

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Topics: Disks, Rotors, Stiffness, Surface roughness, Modeling

Journal Articles

Test and Theory for a Refined Structural Model of a Hirth Coupling

Baik Jin Kim, Joseph Oh, Alan Palazzolo

J. Eng. Gas Turbines Power. March 2022, 144(3): 031027.

Paper No: GTP-21-1306

DOI: https://doi.org/10.1115/1.4052088

Published Online: February 21, 2022

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Topics: Finite element analysis, Rotor assembly, Rotors, Stiffness, Stress, Stress concentration, Geometry, Pressure, Knudsen number, Couplings

Journal Articles

Rotordynamic Characteristics of a Novel Labyrinth Seal With Swirl Brakes at Seal Entrance and Cavity

Wensong Xue, Zhi Fang, Zhigang Li, Jun Li

J. Eng. Gas Turbines Power. May 2022, 144(5): 051017.

Paper No: GTP-21-1639

DOI: https://doi.org/10.1115/1.4053706

Published Online: February 21, 2022

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Topics: Brakes, Cavities, Damping, Design, Numerical analysis, Rotors, Stiffness, Whirls, Fluids, Pressure

Journal Articles

Numerical Methods for Calculating Component Modes for Geometric Mistuning Reduced-Order Models

Joseph A. Beck, Jeffrey M. Brown, Alex A. Kaszynski, Daniel L. Gillaugh

J. Eng. Gas Turbines Power. March 2022, 144(3): 031006.

Paper No: GTP-21-1487

DOI: https://doi.org/10.1115/1.4052427

Published Online: December 7, 2021

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Topics: Algorithms, Density, Errors, Finite element model, Geometry, Numerical analysis, Storage, Stiffness, Parallel processing

Journal Articles

Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based on the Applicability Analysis of Leakage Models Using Bulk-Flow Method

Tianhao Wang, Zhigang Li, Jun Li

J. Eng. Gas Turbines Power. January 2022, 144(1): 011028.

Paper No: GTP-21-1430

DOI: https://doi.org/10.1115/1.4052267

Published Online: December 3, 2021

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Topics: Cavities, Clearances (Engineering), Damping, Flow (Dynamics), Leakage, Leakage flows, Pressure, Rotors, Sealing (Process), Stiffness

Journal Articles

Integrally Bladed Rotor Mistuning Identification and Model Updating Using Geometric Mistuning Models

Joseph A. Beck, Jeffrey M. Brown, Daniel L. Gillaugh, Emily B. Carper, Alex A. Kaszynski

J. Eng. Gas Turbines Power. December 2021, 143(12): 121012.

Paper No: GTP-20-1576

DOI: https://doi.org/10.1115/1.4051111

Published Online: October 12, 2021

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Topics: Algorithms, Approximation, Blades, Eigenvalues, Elastic moduli, Errors, Excitation, Finite element model, Geometry, Materials properties

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Journal citation

NARROW

Numerical Investigation on the Leakage and Rotordynamic Characteristics for a Hole-Pattern Seal in Wet-Gas Conditions

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

Experimental Investigation of Friction Damping in Blade Root Joints

The Numerical and Experimental Evaluation of a Coupled Blade Dynamic Limit Response With Friction Contacts

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

Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator

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

Static and Rotordynamic Characteristics for Supercritical Carbon Dioxide Spiral Groove Dry Gas Seal With the Tilted Seal Ring

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

Reduced Order Modeling of Forced Response in a Multistage Compressor Under Mistuning and Aerocoupling

Identification of Mistuning Based on Forced Response Measurements and Assessment for a Real Compressor Blisk

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

Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings

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

Numerical and Experimental Study on Rod-Fastened Rotor Dynamics Using Semi-Analytical Elastic-Plastic Model

Test and Theory for a Refined Structural Model of a Hirth Coupling

Rotordynamic Characteristics of a Novel Labyrinth Seal With Swirl Brakes at Seal Entrance and Cavity

Numerical Methods for Calculating Component Modes for Geometric Mistuning Reduced-Order Models

Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based on the Applicability Analysis of Leakage Models Using Bulk-Flow Method

Integrally Bladed Rotor Mistuning Identification and Model Updating Using Geometric Mistuning Models

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