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Proceedings Papers

Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines

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Rahul A. Bidkar, Uttara Kumar, Deepak Trivedi, Xiaohua Zhang, Collin Rambacher, Aaron Rimpel, Thomas Kerr, Jeremy Johnson
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123289
https://doi.org/10.1115/GT2024-123289
View Paper titled, Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines
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Topics: Turbines, Temperature, Clearances (Engineering), Film thickness, Fluids, Carbon dioxide, Design, Rotors, Computational fluid dynamics, Deformation
Proceedings Papers

The Impact of Pad Elasticity on Frequency-Dependent Linear Dynamic Coefficients of Tilting-Pad Journal Bearings

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Daniel Vetter, Philipp Zemella, Thomas Hagemann, Hubert Schwarze
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126246
https://doi.org/10.1115/GT2024-126246
View Paper titled, The Impact of Pad Elasticity on Frequency-Dependent Linear Dynamic Coefficients of Tilting-Pad Journal Bearings
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Topics: Elasticity, Journal bearings, Stiffness, Bearings, Boundary-value problems, Deformation, Film thickness, Finite element model, Hydrodynamics, Lubricants
Proceedings Papers

Ball Bearing Dynamic Stiffness Prediction Considering an Uncertain Position of Rolling Elements

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Roman Kochurov, Volodymyr Martynenko, Leonid Moroz, Yuriy Govorushchenko
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127790
https://doi.org/10.1115/GT2024-127790
View Paper titled, Ball Bearing Dynamic Stiffness Prediction Considering an Uncertain Position of Rolling Elements
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Topics: Ball bearings, Stiffness
Proceedings Papers

Mechanical Properties of the Support Structure With Recoverable Stiffness

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He Sun, Dayi Zhang, Qicheng Zhang, Cheng Yang
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126043
https://doi.org/10.1115/GT2024-126043
View Paper titled, Mechanical Properties of the Support Structure With Recoverable Stiffness
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Topics: Blades, Mechanical properties, Shape memory alloys, Stiffness, Rotors, Stress, Bearings, Heating, Phase transitions, Stability
Proceedings Papers

Experimental Investigation of Randomly Oriented Wire Mesh Damper Performance

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Seth P. Pietrowski, Bryce Villanueva, Jeffrey L. Kauffman
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A012, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124095
https://doi.org/10.1115/GT2024-124095
View Paper titled, Experimental Investigation of Randomly Oriented Wire Mesh Damper Performance
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Topics: Dampers, Wire mesh, Damping, Compression, Wire, Friction, Stiffness, Density, Plates (structures), Testing
Proceedings Papers

Study on Dynamic Characteristics of Single-Span Rotor Under Cross-Coupling Stiffness Control on Non-Drive End

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Yuhang Ma, Qihang Li, Bowen Yang, Rui Zhang, Weimin Wang, Jianfei Yao
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A014, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127689
https://doi.org/10.1115/GT2024-127689
View Paper titled, Study on Dynamic Characteristics of Single-Span Rotor Under Cross-Coupling Stiffness Control on Non-Drive End
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Topics: Rotors, Stability, Stiffness
Proceedings Papers

Damping Phenomena in Rotating Machines: A Focus on Rotor Damping With Synchronous and Asynchronous Excitation

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Francesco D’Alessandro, Florian Garnier, Damien Guivarch, Amit Zutshi, Weize Kang, Manoj Kunnil, Payyoor Narayanan, Mark Robinson, J. S. Kumar, Jianming Cao, Ted Rose
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125865
https://doi.org/10.1115/GT2024-125865
View Paper titled, Damping Phenomena in Rotating Machines: A Focus on Rotor Damping With Synchronous and Asynchronous Excitation
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Topics: Damping, Excitation, Machinery, Rotors, Aircraft engines, Computer software, Rotation, Vibration, Whirls, Aerospace industry
Proceedings Papers

Rotordynamics of a Single-Stage Brush Seal in Isolation: The Effects of Variable Stiffness and Back Plate Geometry

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Joshua Bird, Patrick S. Keogh, Carl M. Sangan, Aaron A. Bowsher, Peter F. Crudgington, James A. Scobie
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128839
https://doi.org/10.1115/GT2024-128839
View Paper titled, Rotordynamics of a Single-Stage Brush Seal in Isolation: The Effects of Variable Stiffness and Back Plate Geometry
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Topics: Damping, Geometry, Rotordynamics, Stiffness
Proceedings Papers

Influence of Baseplate Flexibility in Rotordynamic Analysis of Rotating Equipment

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Vincenzo D’Addio, Alessio Gorgeri, Mirko Libraschi, Francesco Capanni
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127259
https://doi.org/10.1115/GT2024-127259
View Paper titled, Influence of Baseplate Flexibility in Rotordynamic Analysis of Rotating Equipment
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Topics: Bearings, Computers, Condensation, Damping, Dynamics (Mechanics), Fluid films, Frequency response, Rotors, Sensitivity analysis, Shapes
Proceedings Papers

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

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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
Proceedings Papers

A Bladed Disk Reduction Technique That Captures Variation in Blade Stiffness and Blade Root Joint Contacts

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Troy Krizak, Christian Maria Firrone, Giuseppe Battiato, Kiran D’Souza
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A034, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129039
https://doi.org/10.1115/GT2024-129039
View Paper titled, A Bladed Disk Reduction Technique That Captures Variation in Blade Stiffness and Blade Root Joint Contacts
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Topics: Bladed disks, Blades, Stiffness, Manufacturing, Deflection, Degrees of freedom, Design, Disks, Elastic moduli, Engineering simulation
Proceedings Papers

On the Influence of Bearing Modeling Details on the Dynamical System Effects of a Mid-Size Turbocharger Rotor

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Arthur Zobel, Christopher Fuhrer, Damian M. Vogt, Alex Nakos, Bernd Beirow, Alexander Blessing, Carolin Zippack
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102098
https://doi.org/10.1115/GT2023-102098
View Paper titled, On the Influence of Bearing Modeling Details on the Dynamical System Effects of a Mid-Size Turbocharger Rotor
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Topics: Bearings, Dynamic systems, Modeling, Rotors, Turbochargers, Compressors, Turbines, Wheels, Damping, Excitation
Proceedings Papers

Leakage and Rotordynamic Force Coefficients of a Labyrinth Seal and a Pocket Damper Seal Operating With Wet Gas

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Jose Torres, Luis San Andrés
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100555
https://doi.org/10.1115/GT2023-100555
View Paper titled, Leakage and Rotordynamic Force Coefficients of a Labyrinth Seal and a Pocket Damper Seal Operating With Wet Gas
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Topics: Dampers, Leakage, Clearances (Engineering), Damping, Uncertainty, Cavities, Compressors, Design, Engineers, Errors
Proceedings Papers

Dynamic Characterization of an Adaptive Film-Riding Seal

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Joshua Bird, Patrick Keogh, Carl Sangan, Aaron Bowsher, Peter Crudgington, James Scobie
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103118
https://doi.org/10.1115/GT2023-103118
View Paper titled, Dynamic Characterization of an Adaptive Film-Riding Seal
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Topics: Clearances (Engineering), Computer simulation, Damping, Design, Displacement, Eddies (Fluid dynamics), Eddy currents (Electricity), Fluid films, Fluids, High pressure (Physics)
Proceedings Papers

Analytical Study on Hybrid Thrust Foil Bearing, Structural Characterization and Measurement of Static Performance

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Ehiremen Ebewele, Daejong Kim, Jeongpill Ki
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A039, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104282
https://doi.org/10.1115/GT2023-104282
View Paper titled, Analytical Study on Hybrid Thrust Foil Bearing, Structural Characterization and Measurement of Static Performance
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Topics: Foil bearings, Hydrostatic pressure, Stiffness, Stress, Thrust
Proceedings Papers

Identification of Dynamic Force Coefficients for an Additively Manufactured Hermetic Squeeze Film Bearing Support Damper Utilizing a Pass-Through Channel

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Bugra Ertas, Keith Gary, Tom Adcock
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A038, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104108
https://doi.org/10.1115/GT2023-104108
View Paper titled, Identification of Dynamic Force Coefficients for an Additively Manufactured Hermetic Squeeze Film Bearing Support Damper Utilizing a Pass-Through Channel
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Topics: Additive manufacturing, Bearings, Dampers, Stiffness, Damping, Design, Fluid structure interaction, Computational fluid dynamics, Dynamic testing (Engineering), Finite element analysis
Proceedings Papers

Pressure Actuated Leaf Seal Design and Test for sCO2 Applications

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Clayton Grondahl, Rich Armstrong
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102258
https://doi.org/10.1115/GT2023-102258
View Paper titled, Pressure Actuated Leaf Seal Design and Test for sCO2 Applications
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Topics: Design, Pressure, Leakage, Sealing (Process), Cycles, Dynamic testing (Engineering), Dynamic testing (Materials), Energy conversion, Leakage flows, Turbomachinery
Proceedings Papers

Flame Transfer Function and Emissions of a Piloted Single Jet Burner: Influence of Hydrogen Content

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Philipp Maximilian zur Nedden, Mattias Ettore Giulio Eck, Finn Lückoff, Lukasz Panek, Alessandro Orchini, Christian Oliver Paschereit
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A017, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103032
https://doi.org/10.1115/GT2023-103032
View Paper titled, Flame Transfer Function and Emissions of a Piloted Single Jet Burner: Influence of Hydrogen Content
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Topics: Emissions, Flames, Hydrogen, Transfer functions, Nitrogen oxides, Combustion, Ejectors, Acoustics, Chemiluminescence, Combustion chambers
Proceedings Papers

Insights Into Frictional Brush Seal Hysteresis

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Hien M. Phan, Michael J. Pekris, John W. Chew
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102443
https://doi.org/10.1115/GT2023-102443
View Paper titled, Insights Into Frictional Brush Seal Hysteresis
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Topics: Computer simulation, Displacement, Fluid structure interaction, Friction, High pressure (Physics), Leakage, Modeling, Pressure, Rotation, Sealing (Process)
Proceedings Papers

Vibration Control of a Rotor-Magnetic Bearing System on the Moving Base Through H ∞ Control

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Guorong Zhang, Mingyang Liu, Hansen Zou, Xikui Wang, Guang Xi
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, V11BT26A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102528
https://doi.org/10.1115/GT2023-102528
View Paper titled, Vibration Control of a Rotor-Magnetic Bearing System on the Moving Base Through H ∞ Control
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Topics: Aircraft, Bearings, Magnetic bearings, Rotors, Vibration control, Control equipment, Flight, Design, Displacement, Damping