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Journal Articles

Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors

Shreyas Hegde, Jonathan D. Inge, Robert Kielb
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051004.
Paper No: GTP-22-1389
DOI: https://doi.org/10.1115/1.4055832
Published Online: December 20, 2022
View Article titled, Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors
Click here to open pdf in another window PDF for Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors
Topics: Blades, Compressors, Damping, Flutter (Aerodynamics), Rotors
Proceedings Papers

A Fluid-Structure Interaction Tool Using a Van der Pol Based Reduced-Order Model for Buffet and Non-Synchronous Vibrations

Richard Hollenbach, Robert Kielb, Kenneth Hall
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A007, June 13–17, 2022
Paper No: GT2022-80277
DOI: https://doi.org/10.1115/GT2022-80277
View Paper titled, A Fluid-Structure Interaction Tool Using a Van der Pol Based Reduced-Order Model for Buffet and Non-Synchronous Vibrations
Click here to open pdf in another window PDF for A Fluid-Structure Interaction Tool Using a Van der Pol Based Reduced-Order Model for Buffet and Non-Synchronous Vibrations
Topics: Fluid structure interaction, Vibration
Proceedings Papers

Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response

Shreyas Hegde, Laith Zori, Rubens Campregher, Robert Kielb
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A004, June 13–17, 2022
Paper No: GT2022-78101
DOI: https://doi.org/10.1115/GT2022-78101
View Paper titled, Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response
Click here to open pdf in another window PDF for Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response
Topics: Blades, Compressors, Computational fluid dynamics, Rotors, Stators, Engineering simulation, Simulation, Waves, Disks, Reflection
Proceedings Papers

Impact of Upstream and Downstream Excitation and Multi-Row Interaction on the Mistuned Forced Response Behavior of an Embedded Compressor Rotor: Higher-Order Mode Aeromechanics

Shreyas Hegde, Laith Zori, Rubens Campregher, Robert Kielb
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A002, June 13–17, 2022
Paper No: GT2022-78033
DOI: https://doi.org/10.1115/GT2022-78033
View Paper titled, Impact of Upstream and Downstream Excitation and Multi-Row Interaction on the Mistuned Forced Response Behavior of an Embedded Compressor Rotor: Higher-Order Mode Aeromechanics
Click here to open pdf in another window PDF for Impact of Upstream and Downstream Excitation and Multi-Row Interaction on the Mistuned Forced Response Behavior of an Embedded Compressor Rotor: Higher-Order Mode Aeromechanics
Topics: Compressors, Computational fluid dynamics, Excitation, Rotors
Proceedings Papers

An Improved Preliminary Design Tool for Turbomachinery Blades Using Van der Pol Based Reduced-Order Model for Non-Synchronous Vibrations

Richard Hollenbach, Robert Kielb, Kenneth Hall
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A032, June 13–17, 2022
Paper No: GT2022-83391
DOI: https://doi.org/10.1115/GT2022-83391
View Paper titled, An Improved Preliminary Design Tool for Turbomachinery Blades Using Van der Pol Based Reduced-Order Model for Non-Synchronous Vibrations
Click here to open pdf in another window PDF for An Improved Preliminary Design Tool for Turbomachinery Blades Using Van der Pol Based Reduced-Order Model for Non-Synchronous Vibrations
Topics: Blades, Design, Fluid structure interaction, Turbomachinery, Vibration
Proceedings Papers

Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors

Shreyas Hegde, Jonathan D. Inge, Robert Kielb
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A003, June 13–17, 2022
Paper No: GT2022-79761
DOI: https://doi.org/10.1115/GT2022-79761
View Paper titled, Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors
Click here to open pdf in another window PDF for Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors
Topics: Compressors, Damping, Rotors
Journal Articles

A Fluid–Structure Interaction Tool Using a Van der Pol-Based Reduced-Order Model for Buffet and Nonsynchronous Vibrations

Richard Hollenbach, Robert Kielb, Kenneth Hall
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. January 2023, 145(1): 011009.
Paper No: TURBO-22-1189
DOI: https://doi.org/10.1115/1.4055447
Published Online: October 7, 2022
View Article titled, A Fluid–Structure Interaction Tool Using a Van der Pol-Based Reduced-Order Model for Buffet and Nonsynchronous Vibrations
Click here to open pdf in another window PDF for A Fluid–Structure Interaction Tool Using a Van der Pol-Based Reduced-Order Model for Buffet and Nonsynchronous Vibrations
Topics: Cycles, Cylinders, Fluid structure interaction, Fluids, Locks (Waterways), Oscillations, Phase shift, Simulation, Vibration, Turbomachinery
Journal Articles

Extending a Van Der Pol-Based Reduced-Order Model for Fluid–Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery

Richard Hollenbach, Robert Kielb, Kenneth Hall
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2022, 144(3): 031006.
Paper No: TURBO-21-1165
DOI: https://doi.org/10.1115/1.4052405
Published Online: October 4, 2021
View Article titled, Extending a Van Der Pol-Based Reduced-Order Model for Fluid–Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery
Click here to open pdf in another window PDF for Extending a Van Der Pol-Based Reduced-Order Model for Fluid–Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery
Topics: Cylinders, Design, Errors, Fluid structure interaction, Fluids, Locks (Waterways), Stiffness, System identification, Turbomachinery, Vibration
Proceedings Papers

Influence of Stator Hub Cavities on the Forced Response Behaviour of an Embedded Compressor Rotor

Shreyas Hegde, Robert Kielb, Laith Zori, Rubens Campregher
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A002, June 7–11, 2021
Paper No: GT2021-58779
DOI: https://doi.org/10.1115/GT2021-58779
View Paper titled, Influence of Stator Hub Cavities on the Forced Response Behaviour of an Embedded Compressor Rotor
Click here to open pdf in another window PDF for Influence of Stator Hub Cavities on the Forced Response Behaviour of an Embedded Compressor Rotor
Topics: Cavities, Compressors, Rotors, Stators
Proceedings Papers

Influence of Disc Modes and Sideband Excitations on the Mistuned Forced Response Behaviour of an Embedded Compressor Rotor

Shreyas Hegde, Andrew Madden, Robert Kielb
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A003, June 7–11, 2021
Paper No: GT2021-58780
DOI: https://doi.org/10.1115/GT2021-58780
View Paper titled, Influence of Disc Modes and Sideband Excitations on the Mistuned Forced Response Behaviour of an Embedded Compressor Rotor
Click here to open pdf in another window PDF for Influence of Disc Modes and Sideband Excitations on the Mistuned Forced Response Behaviour of an Embedded Compressor Rotor
Topics: Compressors, Coordinate measuring machines, Disks, Excitation, Rotors
Proceedings Papers

Extending a Van der Pol Based Reduced-Order Model for Fluid-Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery

Richard Hollenbach, Robert Kielb, Kenneth Hall
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A008, June 7–11, 2021
Paper No: GT2021-58965
DOI: https://doi.org/10.1115/GT2021-58965
View Paper titled, Extending a Van der Pol Based Reduced-Order Model for Fluid-Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery
Click here to open pdf in another window PDF for Extending a Van der Pol Based Reduced-Order Model for Fluid-Structure Interaction Applied to Non-Synchronous Vibrations in Turbomachinery
Topics: Fluid structure interaction, Turbomachinery, Vibration
Proceedings Papers

Impact of Multi-Row Aerodynamic Interaction on the Forced Response Behaviour of an Embedded Compressor Rotor

Shreyas Hegde, Robert Kielb, Laith Zori, Rubens Campregher
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A012, September 21–25, 2020
Paper No: GT2020-14482
DOI: https://doi.org/10.1115/GT2020-14482
View Paper titled, Impact of Multi-Row Aerodynamic Interaction on the Forced Response Behaviour of an Embedded Compressor Rotor
Click here to open pdf in another window PDF for Impact of Multi-Row Aerodynamic Interaction on the Forced Response Behaviour of an Embedded Compressor Rotor
Topics: Compressors, Rotors
Journal Articles

Separation of Up and Downstream Forced Response Excitations of an Embedded Compressor Rotor

Shreyas Hegde, Zhiping Mao, Tianyu Pan, Laith Zori, Rubens Campregher, Robert Kielb
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. September 2019, 141(9): 091013.
Paper No: TURBO-18-1340
DOI: https://doi.org/10.1115/1.4044212
Published Online: August 1, 2019
View Article titled, Separation of Up and Downstream Forced Response Excitations of an Embedded Compressor Rotor
Click here to open pdf in another window PDF for Separation of Up and Downstream Forced Response Excitations of an Embedded Compressor Rotor
Topics: Blades, Compressors, Excitation, Pressure, Reflection, Rotors, Simulation, Stators, Waves, Wakes
Journal Articles

Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor—Part II: Mistuned Forced Response Prediction

Jing Li, Nyansafo Aye-Addo, Robert Kielb, Nicole Key
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2018, 140(3): 031006.
Paper No: TURBO-17-1210
DOI: https://doi.org/10.1115/1.4038519
Published Online: December 20, 2017
View Article titled, Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor—Part II: Mistuned Forced Response Prediction
Click here to open pdf in another window PDF for Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor—Part II: Mistuned Forced Response Prediction
Topics: Blades, Compressors, Coordinate measuring machines, Rotors, Eigenvalues, Sensitivity analysis
Proceedings Papers

Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part I — Steady and Unsteady Aerodynamics

Jing Li, Nyansafo Aye-Addo, Nicholas Kormanik, III, Douglas Matthews, Nicole Key, Robert Kielb
Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT36A021, June 26–30, 2017
Paper No: GT2017-64633
DOI: https://doi.org/10.1115/GT2017-64633
View Paper titled, Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part I — Steady and Unsteady Aerodynamics
Click here to open pdf in another window PDF for Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part I — Steady and Unsteady Aerodynamics
Topics: Aerodynamics, Compressors, Rotors, Stators, Resonance, Engineering simulation, Impulse (Physics), Industrial design, Leakage flows, Numerical analysis
Proceedings Papers

Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part II — Mistuned Forced Response Prediction

Jing Li, Nyansafo Aye-Addo, Robert Kielb, Nicole Key
Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT36A023, June 26–30, 2017
Paper No: GT2017-64647
DOI: https://doi.org/10.1115/GT2017-64647
View Paper titled, Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part II — Mistuned Forced Response Prediction
Click here to open pdf in another window PDF for Mistuned Higher-Order Mode Forced Response of an Embedded Compressor Rotor: Part II — Mistuned Forced Response Prediction
Topics: Compressors, Rotors, Blades, Coordinate measuring machines, Density, Measurement systems, Resonance, Sensitivity analysis, Stators, Stress
Proceedings Papers

Forcing Superposition and Decomposition of an Embedded Compressor Rotor

Jing Li, Robert Kielb
Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT36A024, June 26–30, 2017
Paper No: GT2017-64657
DOI: https://doi.org/10.1115/GT2017-64657
View Paper titled, Forcing Superposition and Decomposition of an Embedded Compressor Rotor
Click here to open pdf in another window PDF for Forcing Superposition and Decomposition of an Embedded Compressor Rotor
Topics: Compressors, Rotors, Stators, Computational fluid dynamics, Approximation, Excitation
Proceedings Papers

Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method

Robert Kielb, John Barter, Olga Chernysheva, Torsten Fransson
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 423-428, June 16–19, 2003
Paper No: GT2003-38694
DOI: https://doi.org/10.1115/GT2003-38694
View Paper titled, Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method
Click here to open pdf in another window PDF for Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method
Topics: Design methodology, Flutter (Aerodynamics), Pressure, Turbine blades, Mode shapes, Blades, Rotation, Turbines, Vibration analysis
Journal Articles

Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method

Robert Kielb, Jack Barter, Olga Chernycheva, Torsten Fransson
Journal: Journal of Turbomachinery
Article Type: Technical Papers
J. Turbomach. April 2004, 126(2): 306–309.
DOI: https://doi.org/10.1115/1.1650380
Published Online: June 15, 2004
View Article titled, Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method
Click here to open pdf in another window PDF for Flutter of Low Pressure Turbine Blades With Cyclic Symmetric Modes: A Preliminary Design Method
Topics: Blades, Design methodology, Flutter (Aerodynamics), Mode shapes, Pressure, Turbine blades, Traveling waves, Turbines, Computational fluid dynamics, Rotation