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Proceedings Papers

An Optimization Method for Stiffness and Damping Mistuning Identification From Blade Tip Timing Data

Troy Krizak, Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125263
https://doi.org/10.1115/GT2024-125263
View Paper titled, An Optimization Method for Stiffness and Damping Mistuning Identification From Blade Tip Timing Data
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Topics: Blades, Damping, Optimization, Stiffness, Computer simulation, Bladed disks, Dynamics (Mechanics), System identification, Turbomachinery, Vibration
Journal Articles

An Optimization Method for Stiffness and Damping Mistuning Identification From Blade Tip Timing Data

Troy Krizak, Eric Kurstak, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121005.
Paper No: GTP-24-1300
https://doi.org/10.1115/1.4066165
Published Online: August 23, 2024
View Article titled, An Optimization Method for Stiffness and Damping Mistuning Identification From Blade Tip Timing Data
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Topics: Blades, Damping, Optimization, Stiffness
Journal Articles

Damping and Stiffness Mistuning Effects in a Bladed Disk With Varied Disk Coupling

Troy Krizak, Eric Kurstak, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2024, 146(1): 011018.
Paper No: GTP-23-1373
https://doi.org/10.1115/1.4063542
Published Online: November 21, 2023
View Article titled, Damping and Stiffness Mistuning Effects in a Bladed Disk With Varied Disk Coupling
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Topics: Blades, Damping, Stiffness, Disks, Bladed disks
Proceedings Papers

Simultaneous Damping and Mistuning Identification Using Nonlinear Optimization of Blade Tip Timing Data

Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT27A021, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103214
https://doi.org/10.1115/GT2023-103214
View Paper titled, Simultaneous Damping and Mistuning Identification Using Nonlinear Optimization of Blade Tip Timing Data
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Topics: Blades, Damping, Optimization, Computer simulation, Approximation, Bladed disks, Dynamics (Mechanics), Engineering simulation, Parameter estimation, Resonance
Proceedings Papers

Damping and Stiffness Mistuning Effects in a Bladed Disk With Varied Disk Coupling

Troy Krizak, Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT27A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101746
https://doi.org/10.1115/GT2023-101746
View Paper titled, Damping and Stiffness Mistuning Effects in a Bladed Disk With Varied Disk Coupling
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Topics: Bladed disks, Damping, Disks, Stiffness, Blades, Coordinate measuring machines, Engineering simulation, Modeling, Simulation
Proceedings Papers

An Experimental and Computational Investigation of a Pulsed Air-Jet Excitation System on a Rotating Bladed Disk

Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A041, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16301
https://doi.org/10.1115/GT2020-16301
View Paper titled, An Experimental and Computational Investigation of a Pulsed Air-Jet Excitation System on a Rotating Bladed Disk
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Topics: Air jets, Disks, Excitation systems, Blades, Excitation, Vibration, Computer simulation, Design, Engines, Dynamics (Mechanics)
Journal Articles

An Experimental and Computational Investigation of a Pulsed Air-Jet Excitation System on a Rotating Bladed Disk

Eric Kurstak, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011017.
Paper No: GTP-20-1595
https://doi.org/10.1115/1.4049014
Published Online: January 4, 2021
View Article titled, An Experimental and Computational Investigation of a Pulsed Air-Jet Excitation System on a Rotating Bladed Disk
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Topics: Air jets, Blades, Disks, Excitation, Vibration, Traveling waves, Engines, Damping, Stiffness, Computer simulation
Proceedings Papers

Mistuning Identification for Rotating Bladed Disks Using Stationary Measurements and Reduced Order Models

Eric Kurstak, Karsten Look, Kiran D’Souza
Proc. ASME. IDETC-CIE2020, Volume 7: 32nd Conference on Mechanical Vibration and Noise (VIB), V007T07A026, August 17–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: DETC2020-22652
https://doi.org/10.1115/DETC2020-22652
View Paper titled, Mistuning Identification for Rotating Bladed Disks Using Stationary Measurements and Reduced Order Models
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Topics: Disks, Design, Computer simulation, Turbomachinery, Blades, Boundary-value problems, Engineering prototypes, High temperature, Machinery, Manufacturing
Journal Articles

A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks

Eric Kurstak, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041015.
Paper No: GTP-19-1441
https://doi.org/10.1115/1.4045023
Published Online: February 3, 2020
View Article titled, A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks
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Topics: Blades, Design, Disks, Dynamics (Mechanics), Modeling, Modal analysis, Engines, Rotors, Stiffness, Damage
Proceedings Papers

A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks

Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT35A015, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91094
https://doi.org/10.1115/GT2019-91094
View Paper titled, A Statistical Characterization of the Effects and Interactions of Small and Large Mistuning on Multistage Bladed Disks
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Topics: Damage, Design, Disks, Dynamics (Mechanics), Engines, Manufacturing, Modal analysis, Modeling, Rotors, Statistical analysis
Journal Articles

Parametric Reduced Order Models for Bladed Disks With Mistuning and Varying Operational Speed

Eric Kurstak, Ryan Wilber, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2019, 141(5): 051018.
Paper No: GTP-18-1495
https://doi.org/10.1115/1.4041204
Published Online: March 8, 2019
View Article titled, Parametric Reduced Order Models for Bladed Disks With Mistuning and Varying Operational Speed
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Topics: Blades, Coordinate measuring machines, Disks, Finite element methods, Finite element model, Stiffness, Modal analysis, Errors
Proceedings Papers

Parametric Reduced Order Models for Bladed Disks With Mistuning and Varying Operational Speed

Eric Kurstak, Ryan Wilber, Kiran D’Souza
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT35A012, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75563
https://doi.org/10.1115/GT2018-75563
View Paper titled, Parametric Reduced Order Models for Bladed Disks With Mistuning and Varying Operational Speed
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Topics: Disks, Coordinate measuring machines, Finite element analysis
Journal Articles

Multistage Blisk and Large Mistuning Modeling Using Fourier Constraint Modes and PRIME

Eric Kurstak, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072505.
Paper No: GTP-17-1483
https://doi.org/10.1115/1.4038613
Published Online: April 10, 2018
View Article titled, Multistage Blisk and Large Mistuning Modeling Using Fourier Constraint Modes and PRIME
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Topics: Blades, Displacement, Errors, Finite element analysis, Finite element methods, Finite element model, Modeling, Stiffness, Computation, Coordinate measuring machines
Proceedings Papers

Multistage Blisk and Large Mistuning Modeling Using Fourier Constraint Modes and PRIME

Eric Kurstak, Kiran D’Souza
Proc. ASME. GT2017, Volume 7B: Structures and Dynamics, V07BT35A012, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63835
https://doi.org/10.1115/GT2017-63835
View Paper titled, Multistage Blisk and Large Mistuning Modeling Using Fourier Constraint Modes and PRIME
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Topics: Computation, Degrees of freedom, Finite element analysis, Modeling, Turbomachinery