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Proceedings Papers

Measurements of Static and Dynamic Load Performance of a 102 mm Carbon-Graphite Porous Surface Tilting-Pad Gas Journal Bearing

Luis San Andrés, Rachel Bolen, Jing Yang, Ryan McGowan

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A015, June 7–11, 2021

Paper No: GT2021-59131

DOI: https://doi.org/10.1115/GT2021-59131

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Topics: Carbon fibers, Gas bearings, Journal bearings, Stress

Proceedings Papers

Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings

Jason Wilkes, Steve White

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A001, June 7–11, 2021

Paper No: GT2021-02669

DOI: https://doi.org/10.1115/GT2021-02669

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Topics: Damping, Foil bearings, Pressure, Stiffness, Bearings, Gas bearings, Gases

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

Experiments With a Rotor-Hybrid Gas Bearing System Undergoing Maneuver Loads From its Base Support

Luis San Andrés, Bryan Rodríguez

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A021, September 21–25, 2020

Paper No: GT2020-16043

DOI: https://doi.org/10.1115/GT2020-16043

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Topics: Gas bearings, Rotors, Stress

Proceedings Papers

Influence of Large Relative Tip Clearances for a Micro Radial Fan and Design Guidelines for Increased Efficiency

Patrick H. Wagner, Jan Van herle, Lili Gu, Jürg Schiffmann

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A025, September 21–25, 2020

Paper No: GT2020-15994

DOI: https://doi.org/10.1115/GT2020-15994

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Topics: Design, Blades, Clearances (Engineering), Computational fluid dynamics, Computer simulation, Engineering simulation, Fans, Gas bearings, Pressure, Reynolds number

Proceedings Papers

A General-Purpose Test Facility for Evaluating Gas Lubricated Thrust Bearings

Keith Gary, Bugra Ertas, Adolfo Delgado

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A027, September 21–25, 2020

Paper No: GT2020-15520

DOI: https://doi.org/10.1115/GT2020-15520

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Topics: Test facilities, Thrust bearings, Bearings, Fluids, Design, Gas turbines, Hydrostatics, Lubricants, Stress, Testing

Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Design and Proof of Concept Testing

Bugra Ertas

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A017, September 21–25, 2020

Paper No: GT2020-14959

DOI: https://doi.org/10.1115/GT2020-14959

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Topics: Additive manufacturing, Design, Testing, Thrust bearings, Turbomachinery, Bearings, Thrust, Deflection, Stiffness, Clearances (Engineering)

Proceedings Papers

The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig

Jason Wilkes, Ryan Cater, Erik Swanson, Kevin Passmore, Jerry Brady

Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A037, June 17–21, 2019

Paper No: GT2019-91735

DOI: https://doi.org/10.1115/GT2019-91735

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Topics: Gas bearings, High pressure (Physics), Pressure, Stress, Thrust bearings, Thrust, Bearings, Failure, Air bearings, Cavities

Proceedings Papers

Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers

Bugra Ertas

Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A023, June 17–21, 2019

Paper No: GT2019-90865

DOI: https://doi.org/10.1115/GT2019-90865

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Topics: Dampers, Gas bearings, Bearings, Cavities, Vibration, Bearing design, Damping, Design, Excitation, Fluid structure interaction

Proceedings Papers

Experimental Rotordynamic Force Coefficients for a Diffusion Bonded Compliant Hybrid Journal Gas Bearing Utilizing Fluid-Filled Hermetic Dampers

Keith Gary, Bugra Ertas

Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A029, June 17–21, 2019

Paper No: GT2019-91109

DOI: https://doi.org/10.1115/GT2019-91109

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Topics: Dampers, Diffusion (Physics), Fluids, Gas bearings, Bearings, Damping, Excitation, Rotors, Stress, Design

Proceedings Papers

Theoretical and Experimental Investigation of a Small-Scale, High-Speed, and Oil-Free Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Patrick H. Wagner, Jan Van herle, Jürg Schiffmann

Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T26A019, June 17–21, 2019

Paper No: GT2019-91361

DOI: https://doi.org/10.1115/GT2019-91361

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Topics: Anodes, Solid oxide fuel cells, Flow (Dynamics), Bearings, Blades, Computational fluid dynamics, Design, Design engineering, Fluids, Gas bearings

Proceedings Papers

Hermetically Sealed Squeeze Film Damper for Operation in Oil-Free Environments

Bugra Ertas, Adolfo Delgado

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A035, June 11–15, 2018

Paper No: GT2018-76308

DOI: https://doi.org/10.1115/GT2018-76308

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Topics: Dampers, Damping, Cavitation, Flow (Dynamics), Gas bearings, Stiffness, Clearances (Engineering), Bearings, Cavities, Density

Proceedings Papers

Compliant Hybrid Gas Bearing Using Modular Hermetically-Sealed Squeeze Film Dampers

Bugra Ertas, Adolfo Delgado

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A036, June 11–15, 2018

Paper No: GT2018-76312

DOI: https://doi.org/10.1115/GT2018-76312

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Topics: Dampers, Gas bearings, Bearings, Damping, Stress, Flow (Dynamics), Testing, Bearing design, Carbon, Cavities

Proceedings Papers

Ultra-High Temperature Compliant Foil Bearings: The Journey to 870°C and Application in Gas Turbine Engines — Experiment

Hooshang Heshmat, James F. Walton, II, Brian D. Nicholson

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A016, June 11–15, 2018

Paper No: GT2018-75555

DOI: https://doi.org/10.1115/GT2018-75555

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Topics: Foil bearings, Gas turbines, Temperature, Bearings, Ceramics, High temperature, Testing, Turbochargers, Air Force, Automotive engines

Proceedings Papers

Vibration Control for Rotor Mounted on a Novel Active Bump Type Foil Bearing With Controllable Mechanical Preloads

Hanqing Guan, Tianyu Liu, Tao Zhang, Kai Feng, Zhiyang Guo

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A028, June 11–15, 2018

Paper No: GT2018-75894

DOI: https://doi.org/10.1115/GT2018-75894

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Topics: Foil bearings, Rotors, Vibration control, Bearings, Levers, Deformation, Adaptive structures, Bending (Stress), Clearances (Engineering), Drag (Fluid dynamics)

Proceedings Papers

A Feasibility Study of Controllable Gas Foil Bearings With Piezoelectric Materials via Rotordynamic Model Predictions

Jisu Park, Kyuho Sim

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A034, June 11–15, 2018

Paper No: GT2018-76273

DOI: https://doi.org/10.1115/GT2018-76273

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Topics: Foil bearings, Piezoelectric materials, Bearings, Clearances (Engineering), Lubrication, Shapes, Damping, Film thickness, Fluid films, Gas bearings

Proceedings Papers

Dynamic Characterization of a Novel Externally Pressurized Compliantly Damped Gas-Lubricated Bearing With Hermetically Sealed Squeeze Film Damper Modules

Adolfo Delgado, Bugra Ertas

Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A050, June 11–15, 2018

Paper No: GT2018-77212

DOI: https://doi.org/10.1115/GT2018-77212

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Topics: Bearings, Dampers, Damping, Design, Rotors, Gas bearings, Metals, Stiffness, Stress, Turbomachinery

Proceedings Papers

Rotordynamics Performance of Hybrid Foil Bearing Under Forced Vibration Input

Daejong Kim, Brian Nicholson, Lewis Rosado, Garry Givan

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A035, June 26–30, 2017

Paper No: GT2017-65233

DOI: https://doi.org/10.1115/GT2017-65233

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Topics: Foil bearings, Rotordynamics, Vibration, Bearings, Stress, Impulse (Physics), Rotors, Excitation, Air Force, Aircraft engines

Proceedings Papers

Assessment of Porous Type Gas Bearings: Measurements of Bearing Performance and Rotor Vibrations

Luis San Andrés, Travis A. Cable, Yong Zheng, Oscar De Santiago, Drew Devitt

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A031, June 13–17, 2016

Paper No: GT2016-57876

DOI: https://doi.org/10.1115/GT2016-57876

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Topics: Bearings, Gas bearings, Rotor vibration, Rotors, Flow (Dynamics), Clearances (Engineering), Drag (Fluid dynamics), Pressure, Pressurized gas, Stress

Proceedings Papers

Enhancement of the Rotordynamic Performance of a Shaft Supported by Air Foil Bearings With Vibration Damper

Behzad Zamanian Yazdi, Daejong Kim, Fangcheng Xu

Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A021, June 13–17, 2016

Paper No: GT2016-56790

DOI: https://doi.org/10.1115/GT2016-56790

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Topics: Foil bearings, Vibration dampers, Bearings, Dampers, Rotors, Stability, Damping, Simulation, Stiffness, Vibration

2 3 4 5

NARROW

Measurements of Static and Dynamic Load Performance of a 102 mm Carbon-Graphite Porous Surface Tilting-Pad Gas Journal Bearing

Influence of Ambient Pressure on Measured Stiffness and Damping of Radial Gas Foil Bearings

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

Experiments With a Rotor-Hybrid Gas Bearing System Undergoing Maneuver Loads From its Base Support

Influence of Large Relative Tip Clearances for a Micro Radial Fan and Design Guidelines for Increased Efficiency

A General-Purpose Test Facility for Evaluating Gas Lubricated Thrust Bearings

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Design and Proof of Concept Testing

The Influence of Ambient Pressure on the Measured Load Capacity of Bump-Foil and Spiral-Groove Gas Thrust Bearings at Ambient Pressures up to 69 Bar on a Novel High-Pressure Gas Bearing Test Rig

Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers

Experimental Rotordynamic Force Coefficients for a Diffusion Bonded Compliant Hybrid Journal Gas Bearing Utilizing Fluid-Filled Hermetic Dampers

Theoretical and Experimental Investigation of a Small-Scale, High-Speed, and Oil-Free Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Hermetically Sealed Squeeze Film Damper for Operation in Oil-Free Environments

Compliant Hybrid Gas Bearing Using Modular Hermetically-Sealed Squeeze Film Dampers

Ultra-High Temperature Compliant Foil Bearings: The Journey to 870°C and Application in Gas Turbine Engines — Experiment

Vibration Control for Rotor Mounted on a Novel Active Bump Type Foil Bearing With Controllable Mechanical Preloads

A Feasibility Study of Controllable Gas Foil Bearings With Piezoelectric Materials via Rotordynamic Model Predictions

Dynamic Characterization of a Novel Externally Pressurized Compliantly Damped Gas-Lubricated Bearing With Hermetically Sealed Squeeze Film Damper Modules

Rotordynamics Performance of Hybrid Foil Bearing Under Forced Vibration Input

Assessment of Porous Type Gas Bearings: Measurements of Bearing Performance and Rotor Vibrations

Enhancement of the Rotordynamic Performance of a Shaft Supported by Air Foil Bearings With Vibration Damper

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