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Journal Articles

Quasi-dynamic approximation of unsteady pressure distribution for transonic airfoils in flutter

Jan Lepicovsky, David Simurda, Robert Kielb, Petr Sidlof, Martin Stepan

J. Turbomach.

Paper No: TURBO-22-1366

DOI: https://doi.org/10.1115/1.4062181

Published Online: March 21, 2023

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Topics: Airfoils, Approximation, Flutter (Aerodynamics), Pressure, Turbochargers, Blades, Design, Turbomachinery, Cascades (Fluid dynamics), Flow (Dynamics)

Journal Articles

A Method for Predicting the Aeroelastic Response of Radial Turbomachines

David Fellows, Vincent Iskandar, Daniel Bodony, Ryan C. McGowan, Sang-Guk Kang, Aaron J. Pope, Chol-Bum M. Kweon

J. Turbomach.

Paper No: TURBO-22-1117

DOI: https://doi.org/10.1115/1.4057062

Published Online: March 8, 2023

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Topics: Computational fluid dynamics, Turbine blades, Turbochargers, Turbomachinery, Flutter (Aerodynamics), Blades, Fluids, Turbines, Aircraft, Combustion

Journal Articles

Nonlinear Flutter Analysis of Labyrinth Seals

Roque Corral, Michele Greco, Luis Matabuena

J. Turbomach. July 2023, 145(7): 071007.

Paper No: TURBO-22-1326

DOI: https://doi.org/10.1115/1.4056701

Published Online: February 10, 2023

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Topics: Cavities, Clearances (Engineering), Cycles, Flutter (Aerodynamics), Pressure, Stability, Vibration, Flow (Dynamics), Torsion

Journal Articles

Experimental Subsonic Flutter of a Linear Turbine Blade Cascade With Various Mode Shapes and Chordwise Torsion Axis Locations

Petr Eret, Volodymyr Tsymbalyuk

J. Turbomach. June 2023, 145(6): 061002.

Paper No: TURBO-21-1237

DOI: https://doi.org/10.1115/1.4056204

Published Online: December 6, 2022

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Topics: Blades, Cascades (Fluid dynamics), Flutter (Aerodynamics), Mode shapes, Torsion, Stability

Journal Articles

Instabilities Everywhere! Hard Problems in Aero-Engines

Zoltán S. Spakovszky

J. Turbomach. February 2023, 145(2): 021011.

Paper No: TURBO-21-1198

DOI: https://doi.org/10.1115/1.4055424

Published Online: October 14, 2022

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Topics: Aircraft engines, Damping, Engines, Whirls, Compressors, Bearings, Rotors, Flow (Dynamics), Flutter (Aerodynamics)

Journal Articles

Numerical Investigation of the Fan Flutter Mechanism Related to Acoustic Propagation Characteristics

Xu Dong, Yanfeng Zhang, Xingen Lu, Yingjie Zhang, Jiuliang Gan

J. Turbomach. October 2022, 144(10): 101009.

Paper No: TURBO-21-1041

DOI: https://doi.org/10.1115/1.4054161

Published Online: April 19, 2022

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Topics: Acoustics, Blades, Damping, Flutter (Aerodynamics), Pressure, Chords (Trusses), Suction, Flow (Dynamics)

Journal Articles

Forced Response Due to Vane Stagger Angle Variation in an Axial Compressor

Niklas Maroldt, Mona Amer, Joerg R. Seume

J. Turbomach. August 2022, 144(8): 081011.

Paper No: TURBO-21-1042

DOI: https://doi.org/10.1115/1.4053839

Published Online: March 4, 2022

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Topics: Blades, Compressors, Damping, Engines, Excitation, Flow (Dynamics), Inlet guide vanes, Rotors, Simulation, Vibration

Journal Articles

Effective Clearance and Differential Gapping Impact on Seal Flutter Modeling and Validation

Roque Corral, Michele Greco, Almudena Vega

J. Turbomach. July 2022, 144(7): 071010.

Paper No: TURBO-21-1238

DOI: https://doi.org/10.1115/1.4053290

Published Online: March 2, 2022

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Topics: Cavities, Kinetic energy, Pressure, Stability, Clearances (Engineering), Simulation, Flutter (Aerodynamics), Flow (Dynamics), Discharge coefficient, Computational fluid dynamics

Journal Articles

Prediction of the Acoustic Reflection in a Realistic Aeroengine Intake With Three Numerical Methods to Analyze Fan Flutter

Thomas Bontemps, Stéphane Aubert, Maxime de Pret

J. Turbomach. October 2021, 143(10): 101016.

Paper No: TURBO-21-1011

DOI: https://doi.org/10.1115/1.4051113

Published Online: July 5, 2021

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Topics: Acoustics, Flutter (Aerodynamics), Reflection, Simulation, Waves, Errors

Journal Articles

Higher Order Conceptual Model for Labyrinth Seal Flutter

Roque Corral, Michele Greco, Almudena Vega

J. Turbomach. July 2021, 143(7): 071006.

Paper No: TURBO-20-1261

DOI: https://doi.org/10.1115/1.4050334

Published Online: April 9, 2021

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Topics: Cavities, Computational fluid dynamics, Cycles, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Stability, Torsion, Simulation, Vibration

Journal Articles

An Efficient Aeroelastic Eigenvalue Method for Analyzing Coupled-Mode Flutter in Turbomachinery

Huang Huang, Wei Liu, Paul Petrie-Repar, Dingxi Wang

J. Turbomach. February 2021, 143(2): 021010.

Paper No: TURBO-20-1042

DOI: https://doi.org/10.1115/1.4048294

Published Online: February 2, 2021

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Topics: Blades, Eigenvalues, Flutter (Aerodynamics), Rotors, Torsion, Turbomachinery, NASA, Displacement, Vibration

Journal Articles

Flutter in Started and Unstarted Transonic Linear Cascades: Simultaneous Measurements of Unsteady Loads and Shock Dynamics

Prahallada Jutur, Raghuraman N. Govardhan

J. Turbomach. December 2019, 141(12): 121004.

Paper No: TURBO-19-1085

DOI: https://doi.org/10.1115/1.4045105

Published Online: November 8, 2019

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Topics: Blades, Cascades (Fluid dynamics), Flutter (Aerodynamics), Shock (Mechanics), Excitation, Dynamics (Mechanics), Oscillations, Stress, Pressure, Suction

Journal Articles

Radial Decomposition of Blade Vibration to Identify a Stall Flutter Source in a Transonic Fan

Q. Rendu, M. Vahdati, L. Salles

J. Turbomach. October 2019, 141(10): 101011.

Paper No: TURBO-18-1314

DOI: https://doi.org/10.1115/1.4044484

Published Online: October 1, 2019

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Topics: Blades, Flutter (Aerodynamics), Pressure, Shock waves, Vibration, Fluctuations (Physics), Flow (Dynamics), Damping, Computation, Oscillations

Journal Articles

Study of the Effect of the Scatter of Acoustic Modes on Turbine Flutter

Juan Manuel Gallardo, Adrián Sotillo, Óscar Bermejo

J. Turbomach. October 2019, 141(10): 101010.

Paper No: TURBO-18-1306

DOI: https://doi.org/10.1115/1.4043909

Published Online: September 30, 2019

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Topics: Acoustics, Flutter (Aerodynamics), Waves, Simulation, Reflection, Electromagnetic scattering, Turbines

Journal Articles

Tip-Shroud Labyrinth Seal Effect on the Flutter Stability of Turbine Rotor Blades

Roque Corral, Michele Greco, Almudena Vega

J. Turbomach. October 2019, 141(10): 101006.

Paper No: TURBO-18-1336

DOI: https://doi.org/10.1115/1.4043962

Published Online: September 25, 2019

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Topics: Airfoils, Blades, Cavities, Damping, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Rotors, Stability, Turbines

Journal Articles

Detached-Eddy Simulation Applied to Aeroelastic Stability Analysis in a Last-Stage Steam Turbine Blade

Tianrui Sun, Paul Petrie-Repar, Damian M. Vogt, Anping Hou

J. Turbomach. September 2019, 141(9): 091002.

Paper No: TURBO-18-1274

DOI: https://doi.org/10.1115/1.4043407

Published Online: May 29, 2019

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Topics: Blades, Flutter (Aerodynamics), Simulation, Steam turbines, Vortices, Clearances (Engineering), Flow (Dynamics), Eddies (Fluid dynamics), Stability, Vibration

Journal Articles

Improving the Flutter Margin of an Unstable Fan Blade

Sina Stapelfeldt, Mehdi Vahdati

J. Turbomach. July 2019, 141(7): 071006.

Paper No: TURBO-18-1334

DOI: https://doi.org/10.1115/1.4042645

Published Online: February 22, 2019

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Topics: Blades, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Stability

Journal Articles

A Low-Speed Compressor Test Rig for Flutter Investigations

Leonie Malzacher, Silvio Geist, Valentina Motta, Dieter Peitsch, Holger Hennings

J. Turbomach. May 2019, 141(5): 051009.

Paper No: TURBO-18-1223

DOI: https://doi.org/10.1115/1.4041817

Published Online: January 25, 2019

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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Flutter (Aerodynamics), Pressure, Traveling waves, Wind tunnels, Compressors

Journal Articles

Consequences of Borescope Blending Repairs on Modern High Pressure Compressor Blisk Aeroelasticity

Benjamin Hanschke, Arnold Kühhorn, Sven Schrape, Thomas Giersch

J. Turbomach. February 2019, 141(2): 021002.

Paper No: TURBO-18-1028

DOI: https://doi.org/10.1115/1.4041672

Published Online: January 16, 2019

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Topics: Blades, Compressors, Damping, Flow (Dynamics), Maintenance, Pressure, Steady state, High pressure (Physics), Aerodynamics, Fluid-dynamic forces

Journal Articles

Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part II: Physical Interpretation

Almudena Vega, Roque Corral

J. Turbomach. December 2018, 140(12): 121007.

Paper No: TURBO-18-1171

DOI: https://doi.org/10.1115/1.4041377

Published Online: October 18, 2018

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Topics: Cavities, Clearances (Engineering), Cycles, Flutter (Aerodynamics), Pressure, Stability, Torsion, Fluids, Oscillating frequencies, Damping

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Journal citation

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Quasi-dynamic approximation of unsteady pressure distribution for transonic airfoils in flutter

A Method for Predicting the Aeroelastic Response of Radial Turbomachines

Nonlinear Flutter Analysis of Labyrinth Seals

Experimental Subsonic Flutter of a Linear Turbine Blade Cascade With Various Mode Shapes and Chordwise Torsion Axis Locations

Instabilities Everywhere! Hard Problems in Aero-Engines

Numerical Investigation of the Fan Flutter Mechanism Related to Acoustic Propagation Characteristics

Forced Response Due to Vane Stagger Angle Variation in an Axial Compressor

Effective Clearance and Differential Gapping Impact on Seal Flutter Modeling and Validation

Prediction of the Acoustic Reflection in a Realistic Aeroengine Intake With Three Numerical Methods to Analyze Fan Flutter

Higher Order Conceptual Model for Labyrinth Seal Flutter

An Efficient Aeroelastic Eigenvalue Method for Analyzing Coupled-Mode Flutter in Turbomachinery

Flutter in Started and Unstarted Transonic Linear Cascades: Simultaneous Measurements of Unsteady Loads and Shock Dynamics

Radial Decomposition of Blade Vibration to Identify a Stall Flutter Source in a Transonic Fan

Study of the Effect of the Scatter of Acoustic Modes on Turbine Flutter

Tip-Shroud Labyrinth Seal Effect on the Flutter Stability of Turbine Rotor Blades

Detached-Eddy Simulation Applied to Aeroelastic Stability Analysis in a Last-Stage Steam Turbine Blade

Improving the Flutter Margin of an Unstable Fan Blade

A Low-Speed Compressor Test Rig for Flutter Investigations

Consequences of Borescope Blending Repairs on Modern High Pressure Compressor Blisk Aeroelasticity

Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part II: Physical Interpretation

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