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Journal Articles

Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions

Luis San Andrés, Andy Alcantar
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061012.
Paper No: GTP-22-1468
DOI: https://doi.org/10.1115/1.4056535
Published Online: January 17, 2023
View Article titled, Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions
Click here to open pdf in another window PDF for Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions
Topics: Bearings, Flow (Dynamics), Stress, Temperature
Journal Articles

Finite Element Analysis of Bent Rotors

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011025.
Paper No: GTP-22-1404
DOI: https://doi.org/10.1115/1.4055452
Published Online: December 14, 2022
View Article titled, Finite Element Analysis of Bent Rotors
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Topics: Rotors, Bearings
Journal Articles

Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results

Marie Kasprzyk, John Sentmanat, Adolfo Delgado
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041019.
Paper No: GTP-22-1517
DOI: https://doi.org/10.1115/1.4055946
Published Online: December 13, 2022
View Article titled, Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results
Click here to open pdf in another window PDF for Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results
Topics: Damping, Fluids, Rotors, Vibration, Waves, Bearings, Whirls
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
Article Type: Research-Article
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
View Article titled, Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing
Click here to open pdf in another window PDF for Theoretical and Experimental Comparisons for Rotordynamic Coefficients of a Multiscratched Tilting Pad Journal Bearing
Topics: Bearings, Film thickness, Journal bearings, Pressure, Rotors, Stiffness, Stress, Temperature, Displacement, Damping
Journal Articles

Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation

Ioannis Gavalas, Athanasios Chasalevris
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011003.
Paper No: GTP-22-1375
DOI: https://doi.org/10.1115/1.4055533
Published Online: October 19, 2022
View Article titled, Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation
Click here to open pdf in another window PDF for Nonlinear Dynamics of Turbine Generator Shaft Trains: Evaluation of Bifurcation Sets Applying Numerical Continuation
Topics: Bearings, Bifurcation, Rotors, Trains, Design, Turbogenerators, Limit cycles, Stability
Journal Articles

Roller Bearing Skidding for Aero-Engine Applications: All-Steel Versus Hybrid Bearings

Azzedine Dadouche, Rami Kerrouche
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011004.
Paper No: GTP-22-1385
DOI: https://doi.org/10.1115/1.4055510
Published Online: October 19, 2022
View Article titled, Roller Bearing Skidding for Aero-Engine Applications: All-Steel Versus Hybrid Bearings
Click here to open pdf in another window PDF for Roller Bearing Skidding for Aero-Engine Applications: All-Steel Versus Hybrid Bearings
Topics: Bearings, Roller bearings, Stress, Rollers
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
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121010.
Paper No: GTP-22-1353
DOI: 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
Click here to open pdf in another window PDF for Design Methodology and Concept Demonstration of Preassembled Additively Manufactured Turbomachinery Systems: Case Study of Turbocharger Based Medical Ventilators
Topics: Additive manufacturing, Bearings, Biomedicine, Design, Flow (Dynamics), Hydrostatics, Pressure, Turbines, Turbomachinery, Manufacturing
Journal Articles

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

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

A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System

Wonbae Jung, Luis San Andrés, Jungbae Kim
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111002.
Paper No: GTP-22-1275
DOI: https://doi.org/10.1115/1.4055365
Published Online: September 20, 2022
View Article titled, A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System
Click here to open pdf in another window PDF for A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System
Topics: Bearings, Rotors, Clearances (Engineering)
Journal Articles

Forced Response System Identification of Full Aero-Engine Rotordynamic Systems for Prognostics and Diagnostics

I. Hur, Z. S. Spakovszky
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101008.
Paper No: GTP-22-1310
DOI: https://doi.org/10.1115/1.4055216
Published Online: September 2, 2022
View Article titled, Forced Response System Identification of Full Aero-Engine Rotordynamic Systems for Prognostics and Diagnostics
Click here to open pdf in another window PDF for Forced Response System Identification of Full Aero-Engine Rotordynamic Systems for Prognostics and Diagnostics
Topics: Aircraft engines, Damping, Engines, System identification, Rotors, Modeling, Design, Bearings, Vibration
Journal Articles

How Do Interfacial Shear and Gravity Affect the Oil Film Characteristics Near an Aero-Engine Bearing?

Avick Sinha, Benjamin Brewster, Kathy Johnson, Mike Walsh, David Hann
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101001.
Paper No: GTP-22-1037
DOI: https://doi.org/10.1115/1.4055211
Published Online: August 25, 2022
View Article titled, How Do Interfacial Shear and Gravity Affect the Oil Film Characteristics Near an Aero-Engine Bearing?
Click here to open pdf in another window PDF for How Do Interfacial Shear and Gravity Affect the Oil Film Characteristics Near an Aero-Engine Bearing?
Topics: Aircraft engines, Bearings, Film thickness, Flow (Dynamics), Gravity (Force), Shear (Mechanics), Stress, Waves, Imaging
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
Article Type: Research-Article
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
View Article titled, Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
Click here to open pdf in another window PDF for Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing
Journal Articles

Experimental Study of Various Low-Friction Coatings for High-Temperature Gas Foil Bearings Under Cold-Start Conditions

Paweł Bagiński, Grzegorz Żywica
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2022, 144(8): 081007.
Paper No: GTP-21-1459
DOI: https://doi.org/10.1115/1.4054746
Published Online: June 20, 2022
View Article titled, Experimental Study of Various Low-Friction Coatings for High-Temperature Gas Foil Bearings Under Cold-Start Conditions
Click here to open pdf in another window PDF for Experimental Study of Various Low-Friction Coatings for High-Temperature Gas Foil Bearings Under Cold-Start Conditions
Topics: Bearings, Coatings, Cycles, Foil bearings, Friction, Stress, Temperature, Torque, High temperature, Wear
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
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071012.
Paper No: GTP-22-1040
DOI: 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
Click here to open pdf in another window PDF for Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective
Topics: Bearings, Journal bearings, Uncertainty, Viscosity, Clearances (Engineering), Pressure, Lubricants, Stress, Film thickness
Journal Articles

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

Jason Wilkes, Steve White
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
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
View Article titled, Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings
Click here to open pdf in another window PDF for Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings
Topics: Bearings, Damping, Foil bearings, Pressure, Stiffness, Gas bearings
Journal Articles

The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig

Jason Wilkes, Ryan Cater, Erik Swanson, Kevin Passmore, Jerry Brady
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2022, 144(6): 061003.
Paper No: GTP-21-1574
DOI: https://doi.org/10.1115/1.4053715
Published Online: March 11, 2022
View Article titled, The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig
Click here to open pdf in another window PDF for The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig
Topics: Bearings, Pressure, Stress, Thrust, Thrust bearings, Gas bearings, High pressure (Physics)
Journal Articles

Novel Cyclo-Nonstationary Indicators for Monitoring of Rotating Machinery Operating Under Speed and Load Varying Conditions

Alexandre Mauricio, Dustin Helm, Markus Timusk, Jerome Antoni, Konstantinos Gryllias
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041018.
Paper No: GTP-20-1600
DOI: https://doi.org/10.1115/1.4049778
Published Online: February 21, 2022
View Article titled, Novel Cyclo-Nonstationary Indicators for Monitoring of Rotating Machinery Operating Under Speed and Load Varying Conditions
Click here to open pdf in another window PDF for Novel Cyclo-Nonstationary Indicators for Monitoring of Rotating Machinery Operating Under Speed and Load Varying Conditions
Topics: Machinery, Signals, Stress, Damage, Bearings
Journal Articles

Comparison of Blind Diagnostic Indicators for Condition Monitoring of Wind Turbine Gearbox Bearings

Junyu Qi, Alexandre Mauricio, Konstantinos Gryllias
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041019.
Paper No: GTP-20-1604
DOI: https://doi.org/10.1115/1.4049797
Published Online: February 21, 2022
View Article titled, Comparison of Blind Diagnostic Indicators for Condition Monitoring of Wind Turbine Gearbox Bearings
Click here to open pdf in another window PDF for Comparison of Blind Diagnostic Indicators for Condition Monitoring of Wind Turbine Gearbox Bearings
Topics: Entropy, Wind turbines, Bearings
Journal Articles

Determining the Influence of Casing Vibrational Behavior on Rotordynamics

Mona Amer, Martin Paehr, Lars Panning-von Scheidt, Joerg R. Seume, Joachim Schmied
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051012.
Paper No: GTP-21-1556
DOI: https://doi.org/10.1115/1.4053123
Published Online: February 21, 2022
View Article titled, Determining the Influence of Casing Vibrational Behavior on Rotordynamics
Click here to open pdf in another window PDF for Determining the Influence of Casing Vibrational Behavior on Rotordynamics
Topics: Bearings, Compressors, Computer simulation, Damping, Excitation, Manufacturing, Modal analysis, Modeling, Rotordynamics, Rotors
Journal Articles

Influence of Lubricant Film Cavitation on the Vibration Behavior of a Semifloating Ring Supported Turbocharger Rotor With Thrust Bearing

Christian Ziese, Cornelius Irmscher, Steffen Nitzschke, Christian Daniel, Elmar Woschke, Thomas Klimpel
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041014.
Paper No: GTP-21-1437
DOI: https://doi.org/10.1115/1.4053266
Published Online: February 10, 2022
View Article titled, Influence of Lubricant Film Cavitation on the Vibration Behavior of a Semifloating Ring Supported Turbocharger Rotor With Thrust Bearing
Click here to open pdf in another window PDF for Influence of Lubricant Film Cavitation on the Vibration Behavior of a Semifloating Ring Supported Turbocharger Rotor With Thrust Bearing
Topics: Bearings, Cavitation, Lubricants, Lubrication, Pressure, Rotors, Temperature, Thrust bearings, Bushings, Simulation