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Proceedings Papers

Gaussian Stochastic Process Modeling of Blend Repaired Airfoil Modal Response Using Reduced Basis Mode Shape Approach

Jeffrey M. Brown, Alex A. Kaszynski, Daniel L. Gillaugh, Emily B. Carper, Joseph A. Beck
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT29A028, June 7–11, 2021
Paper No: GT2021-60238
DOI: https://doi.org/10.1115/GT2021-60238
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Topics: Airfoils, Mode shapes, Modeling, Stochastic processes, Modal assurance criterion, Maintenance, Displacement, Geometry, Design, Finite element model
Proceedings Papers

Accurate Interpolation of the Dependency of Modal Properties on the Rotation Speed for the Transient Response Analysis of Bladed Disks

Jing Tong, Chaoping Zang, E. P. Petrov
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT29A012, June 7–11, 2021
Paper No: GT2021-58982
DOI: https://doi.org/10.1115/GT2021-58982
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Topics: Disks, Interpolation, Rotation, Transients (Dynamics), Mode shapes, Vibration, Engines, Finite element analysis, Gas turbines, Modeling
Proceedings Papers

Development of a Multi-Shaker-Control to Investigate the Influence of the Interblade Phase Angle on Frictionally Damped Turbine Blades

Florian Jäger, Ferhat Kaptan, Lars Panning-Von Scheidt, Jörg Wallaschek
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT29A018, June 7–11, 2021
Paper No: GT2021-59272
DOI: https://doi.org/10.1115/GT2021-59272
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Topics: Blades, Control algorithms, Control systems, Dampers, Damping, Degrees of freedom, Friction, Mode shapes, Stress, Turbine blades
Proceedings Papers

Stability and Unbalance Analysis of Rigid Rotors Supported by Spiral Groove Bearings: Comparison of Different Approaches

Elia Iseli, Jürg Schiffmann
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A013, June 7–11, 2021
Paper No: GT2021-59513
DOI: https://doi.org/10.1115/GT2021-59513
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Topics: Bearings, Rotors, Stability, Compressibility, Gas bearings, Transients (Dynamics), Center of mass, Equations of motion, Excitation, Fluids
Proceedings Papers

Towards Reduced Order Models of Small-Scale Acoustically Significant Components in Gas Turbine Combustion Chambers

Suhas A. Kowshik, Sumukha Shridhar, N. C. W. Treleaven
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A013, June 7–11, 2021
Paper No: GT2021-59601
DOI: https://doi.org/10.1115/GT2021-59601
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Topics: Acoustics, Combustion chambers, Gas turbines, Simulation, Computational fluid dynamics, Flow (Dynamics), Artificial neural networks, Damping, Cooling, Design
Proceedings Papers

Impact of the Stabilized Finite Element Method on Acoustic and Vortical Perturbations in Thermoacoustic Systems

Thomas Hofmeister, Tobias Hummel, Thomas Sattelmayer
Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A023, September 21–25, 2020
Paper No: GT2020-14475
DOI: https://doi.org/10.1115/GT2020-14475
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Topics: Acoustics, Finite element methods, Damping, Diffusion (Physics), Mode shapes, Stability
Proceedings Papers

Analysis of Thermoacoustic Modes in Can-Annular Combustors Using Effective Bloch-Type Boundary Conditions

Jakob G. R. von Saldern, Alessandro Orchini, Jonas P. Moeck
Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A036, September 21–25, 2020
Paper No: GT2020-14665
DOI: https://doi.org/10.1115/GT2020-14665
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Topics: Boundary-value problems, Combustion chambers, Acoustics, Eigenvalues, Waves, Combustion systems, Compressors, Electrical conductivity, Flames, Frequency response
Proceedings Papers

Identification of High-Frequency Transverse Acoustic Modes in Multi-Nozzle Can Combustors

J. Kim, W. Gillman, D. Wu, B. Emerson, V. Acharya, R. Mckinney, T. Lieuwen, M. Isono, T. Saitoh
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A051, September 21–25, 2020
Paper No: GT2020-16130
DOI: https://doi.org/10.1115/GT2020-16130
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Topics: Acoustics, Combustion chambers, Nozzles, Finite element methods, Mode shapes, Pressure, Boundary-value problems, Combustion, Flames, Gas turbines
Proceedings Papers

Integration of an Open Source Blade Geometry Generator Using a Physics Based Parameterization With the Engineering Sketch Pad

Mayank Sharma, John F. Dannenhoffer, III, Justin Holder, Mark G. Turner
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A048, September 21–25, 2020
Paper No: GT2020-15943
DOI: https://doi.org/10.1115/GT2020-15943
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Topics: Blades, Generators, Geometry, Physics, Design, B-splines, Pressure, Airfoils, Computation, Finite element methods
Proceedings Papers

The Impact of Excitation and Mode Shape on Non-Linear Blade Vibrations

Johannes Linhard, Andreas Hartung, Stefan Schwarz, Hans-Peter Hackenberg, Mateusz Sienko
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A013, September 21–25, 2020
Paper No: GT2020-14670
DOI: https://doi.org/10.1115/GT2020-14670
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Topics: Blades, Excitation, Mode shapes, Vibration
Proceedings Papers

High Fidelity Transient Forced Response Analysis of Mistuned Bladed Disks Under Complex Excitation and Variable Rotation Speeds

Jing Tong, Chaoping Zang, Evgeny Petrov
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A023, September 21–25, 2020
Paper No: GT2020-15223
DOI: https://doi.org/10.1115/GT2020-15223
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Topics: Disks, Excitation, Rotation, Transients (Dynamics), Engines, Finite element analysis, Gas turbines, Mode shapes, Modeling, Resonance
Proceedings Papers

Analysis of Nonlinear Modal Damping due to Friction at Blade Roots in Mistuned Bladed Discs

Junjie Chen, Chaoping Zang, Biao Zhou, E. P. Petrov
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A039, September 21–25, 2020
Paper No: GT2020-16029
DOI: https://doi.org/10.1115/GT2020-16029
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Topics: Blades, Damping, Disks, Friction, Vibration, Engines, Excitation, Finite element model, Manufacturing, Mode shapes
Proceedings Papers

Optimization of Airfoil Blend Limits With As-Manufactured Geometry Finite Element Models

Jeffrey M. Brown, Alex A. Kaszynski, Daniel L. Gillaugh, Emily B. Carper, Joeseph A. Beck
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A029, September 21–25, 2020
Paper No: GT2020-15481
DOI: https://doi.org/10.1115/GT2020-15481
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Topics: Airfoils, Finite element model, Geometry, Optimization, Blades, High cycle fatigue, Maintenance, Manufacturing, Rotors, Accounting
Proceedings Papers

Coupled Mode Flutter Analysis of Turbomachinery Blades Using an Adaptation of the P-K Method

Matthias Schuff, Virginie Anne Chenaux
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A001, September 21–25, 2020
Paper No: GT2020-14105
DOI: https://doi.org/10.1115/GT2020-14105
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Topics: Blades, Flutter (Aerodynamics), Turbomachinery, Damping, Design, Eigenvalues, Engineering simulation, Excitation, Fluids, Mode shapes
Proceedings Papers

Numerical Investigation of the Effect of Operating Point on the Aerodynamic Excitation in a Radial Turbine Stage

Nikola Kovachev, Damian M. Vogt
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A025, September 21–25, 2020
Paper No: GT2020-16045
DOI: https://doi.org/10.1115/GT2020-16045
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Topics: Excitation, Turbines, Computational fluid dynamics, Mode shapes, Pressure, Blades, Engineering simulation, Interpolation, Modeling, Rotors
Proceedings Papers

Experimental Study on Flutter Stability of Transonic Cooled Turbine Blade Stage With 3-Dimensional Mode Shape Excitation

Jeongseek Kang, Ethan Perez, Alex Vorobiev, Scott Morris, Joshua Cameron, Daehyun Kim, Hongsik Im, Matthew Montgomery
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A021, September 21–25, 2020
Paper No: GT2020-15723
DOI: https://doi.org/10.1115/GT2020-15723
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Topics: Damping, Excitation, Flutter (Aerodynamics), Mode shapes, Stability, Turbine blades
Proceedings Papers

Effects of S-Shaped Intake on Aeromechanical Characteristics of a Transonic Fan

Yun Zheng, Kang Xu, Hui Yang, Qingzhe Gao, Xiubo Jin
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A007, September 21–25, 2020
Paper No: GT2020-14750
DOI: https://doi.org/10.1115/GT2020-14750
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Topics: Acoustics, Aeroelasticity, Aircraft engines, Annulus, Blades, Boundary layers, Composite materials, Damping, Diffusers, Ducts
Proceedings Papers

Numerical Investigation of Combustion Instabilities in a Single Element Lean Direct Inject (LDI) Combustor Using Flamelet Based Approaches

Saurabh Patwardhan, Pravin Nakod, Stefano Orsino, Carlo Arguinzoni
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A056, June 17–21, 2019
Paper No: GT2019-90878
DOI: https://doi.org/10.1115/GT2019-90878
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Topics: Combustion, Combustion chambers, Simulation results, Pressure, Acoustics, Flamelet generated manifold, Simulation, Engineering simulation, Boundary-value problems, Chemistry
Proceedings Papers

Effect of Noise and Nonlinearities on Thermoacoustics of Can-Annular Combustors

G. Ghirardo, J. P. Moeck, M. R. Bothien
Proc. ASME. GT2019, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A032, June 17–21, 2019
Paper No: GT2019-90546
DOI: https://doi.org/10.1115/GT2019-90546
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Topics: Combustion chambers, Noise (Sound), Thermoacoustics, Flames, Ducts, Engineering simulation, Simulation, Turbines, Acoustics, Engines
Proceedings Papers

High-Frequency Acoustic Mode Identification of Unstable Combustors

J. Kim, T. Lieuwen, B. Emerson, V. Acharya, D. Wu, R. Mckinney, X. Wang, M. Isono
Proc. ASME. GT2019, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A006, June 17–21, 2019
Paper No: GT2019-91029
DOI: https://doi.org/10.1115/GT2019-91029
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Topics: Acoustics, Combustion chambers, Mode shapes, Finite element methods, Pressure, Waves, Combustion systems, Density, Flames, Fluctuations (Physics)