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Journal Articles

Acoustic And Optical Investigations Of The Flame Dynamics Of Rich And Lean Kerosene Flames In The Primary Zone Of An Air-Staged Combustion Test-Rig

Accepted Manuscript
Martin March, Julian Renner, Thomas Sattelmayer
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
Publisher: ASME
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1355
https://doi.org/10.1115/1.4063380
Published Online: September 8, 2023
View Article titled, Acoustic And Optical Investigations Of The Flame Dynamics Of Rich And Lean Kerosene Flames In The Primary Zone Of An Air-Staged Combustion Test-Rig
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Topics: Acoustics, Combustion, Dynamics (Mechanics), Flames, Chemiluminescence, Thermal energy, Aircraft engines, Calibration, Carbon dioxide, Combustion chambers
Journal Articles

Impact Of Transverse Acoustic Excitation And Air Swirl On A Confined Hollow Cone Sheet

Accepted Manuscript
Rohit Bhattacharjee, Aravind I. B., S. R. Chakravarthy
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1117
https://doi.org/10.1115/1.4063280
Published Online: August 30, 2023
View Article titled, Impact Of Transverse Acoustic Excitation And Air Swirl On A Confined Hollow Cone Sheet
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Topics: Acoustics, Excitation, Flow (Dynamics), Pressure, Waves, Principal component analysis, Sprays, Wavelet transforms
Journal Articles

Mistuning Sensitivity of a Fan Bladed-disk with Geometrical Nonlinearities

Accepted Manuscript
Samuel Quaegebeur, Fabrice Thouverez
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1342
https://doi.org/10.1115/1.4063318
Published Online: August 1, 2023
View Article titled, Mistuning Sensitivity of a Fan Bladed-disk with Geometrical Nonlinearities
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Topics: Bladed disks, Blades, Design, Disks, Excitation, Finite element model, Frequency response, Nonlinear systems, Rotors
Journal Articles

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

Accepted Manuscript
Homin Lim, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1303
https://doi.org/10.1115/1.4063308
Published Online: August 1, 2023
View Article titled, Experimental Force Coefficients of a Hydrostatic Thrust Bearing and Comparisons to Predictions
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Topics: Hydrostatics, Thrust bearings, Bearings, Hammers, Damping, Design, Film thickness, Stress, Databases, Excitation
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
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
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Topics: Dampers, Excitation, Rotation, Rotors, Steady state, Displacement, Yaw
Journal Articles

Modal Identification for Integrally Bladed Rotors Under Traveling Wave Excitation

Joseph A. Beck, Jeffrey M. Brown, Daniel L. Gillaugh, Alex A. Kaszynski
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061010.
Paper No: GTP-22-1625
https://doi.org/10.1115/1.4056538
Published Online: January 13, 2023
View Article titled, Modal Identification for Integrally Bladed Rotors Under Traveling Wave Excitation
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Topics: Blades, Excitation, Spectral energy distribution, Traveling waves, Rotors, Damping, Mode shapes, Testing
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
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
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Topics: Computational fluid dynamics, Dampers, Damping, Excitation, Flow (Dynamics), Leakage, Pressure, Rotors, Stiffness, Stability
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
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041022.
Paper No: GTP-22-1469
https://doi.org/10.1115/1.4055786
Published Online: December 14, 2022
View Article titled, The Numerical and Experimental Evaluation of a Coupled Blade Dynamic Limit Response With Friction Contacts
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Topics: Blades, Displacement, Excitation, Friction, Strain gages, Damping, Stiffness
Journal Articles

Experimental Evidence of the Band Gap Formation in Rotors With Longitudinal Periodicity

Patrick B. Lamas, Rodrigo Nicoletti
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. February 2023, 145(2): 024501.
Paper No: GTP-22-1112
https://doi.org/10.1115/1.4055776
Published Online: November 29, 2022
View Article titled, Experimental Evidence of the Band Gap Formation in Rotors With Longitudinal Periodicity
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Topics: Disks, Energy gap, Rotors, Excitation
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
https://doi.org/10.1115/1.4055414
Published Online: November 29, 2022
View Article titled, Nonlinear Damper-Blade Coupling Calculations Reduced to Essentials
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Topics: Blades, Cycles, Dampers, Rotation, Excitation, Vibration
Journal Articles

Hysteresis and Bistability in Transversely Excited Swirling Flows

Ravi Gupta, Rajat Gohiya, Chandan Vempati, Santosh Hemchandra, Pratikash Panda
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011022.
Paper No: GTP-22-1392
https://doi.org/10.1115/1.4055669
Published Online: October 21, 2022
View Article titled, Hysteresis and Bistability in Transversely Excited Swirling Flows
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Topics: Acoustics, Ejectors, Flow (Dynamics), Swirling flow, Combustion chambers, Excitation, Pressure
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
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
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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
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111017.
Paper No: GTP-22-1317
https://doi.org/10.1115/1.4055368
Published Online: September 22, 2022
View Article titled, Reduced Order Modeling of Forced Response in a Multistage Compressor Under Mistuning and Aerocoupling
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Topics: Acoustics, Blades, Compressors, Damping, Excitation, Fatigue, Rotors, Stiffness, Vibration, Modeling
Journal Articles

Prediction of Rotating Instabilities in Low Pressure Steam Turbines Operating at Low Load

Oliver Pütz
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091007.
Paper No: GTP-22-1223
https://doi.org/10.1115/1.4055017
Published Online: August 1, 2022
View Article titled, Prediction of Rotating Instabilities in Low Pressure Steam Turbines Operating at Low Load
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Topics: Blades, Excitation, Pressure, Transients (Dynamics), Flow (Dynamics), Resonance ionization spectroscopy, Turbines, Computation, Design, Stress
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
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091006.
Paper No: GTP-22-1116
https://doi.org/10.1115/1.4055019
Published Online: August 1, 2022
View Article titled, Identification of Mistuning Based on Forced Response Measurements and Assessment for a Real Compressor Blisk
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Topics: Blades, Cantilevers, Damping, Frequency response, Stiffness, Compressors, Resonance, Excitation, Vibration, Electromagnetic spectrum
Journal Articles

Data-Driven Approach for Identifying Mistuning in As-Manufactured Blisks

Sean T. Kelly, Andrea Lupini, Bogdan I. Epureanu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051006.
Paper No: GTP-21-1431
https://doi.org/10.1115/1.4052503
Published Online: February 21, 2022
View Article titled, Data-Driven Approach for Identifying Mistuning in As-Manufactured Blisks
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Topics: Blades, Excitation, Noise (Sound), Artificial neural networks
Journal Articles

Practical Method for Burner Staging Turbine Forced Response Evaluation

Nikola Kafedzhiyski, Maria Mayorca
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051009.
Paper No: GTP-21-1456
https://doi.org/10.1115/1.4052646
Published Online: February 21, 2022
View Article titled, Practical Method for Burner Staging Turbine Forced Response Evaluation
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Topics: Blades, Combustion chambers, Computational fluid dynamics, Temperature, Turbines, Temperature distribution, Rotors, Excitation
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
https://doi.org/10.1115/1.4053123
Published Online: February 21, 2022
View Article titled, Determining the Influence of Casing Vibrational Behavior on Rotordynamics
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Topics: Bearings, Compressors, Computer simulation, Damping, Excitation, Manufacturing, Modal analysis, Modeling, Rotordynamics, Rotors
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
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121012.
Paper No: GTP-20-1576
https://doi.org/10.1115/1.4051111
Published Online: October 12, 2021
View Article titled, Integrally Bladed Rotor Mistuning Identification and Model Updating Using Geometric Mistuning Models
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Topics: Algorithms, Approximation, Blades, Eigenvalues, Elastic moduli, Errors, Excitation, Finite element model, Geometry, Materials properties
Journal Articles

Experimental Investigation on Nonlinear Response of a Low-Swirl Flame to Acoustic Excitation With Large Amplitude

Weijie Liu, Liang Zhang, Ranran Xue, Qian Yang, Huiru Wang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121021.
Paper No: GTP-21-1328
https://doi.org/10.1115/1.4052024
Published Online: October 12, 2021
View Article titled, Experimental Investigation on Nonlinear Response of a Low-Swirl Flame to Acoustic Excitation With Large Amplitude
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Topics: Excitation, Flames, Acoustics, Heat