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Proceedings Papers

Design Methodology and Concept Demonstration of Preassembled Additively Manufactured Turbomachinery Systems: Case Study of Turbocharger Based Medical Ventilators

Acar Çelik, David Linsky, Ron Miezner, Alex Kleiman, Boris Leizeronok, Michael Palman, Sercan Acarer, Beni Cukurel
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T18A011, June 13–17, 2022
Paper No: GT2022-81739
DOI: https://doi.org/10.1115/GT2022-81739
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Topics: Additive manufacturing, Bearings, Biomedicine, Design methodology, Hydrostatics, Turbochargers, Turbomachinery
Proceedings Papers

Investigation of the Transient Closing Behavior of a Radially Adaptive Seal

James Lofts, Corina Schwitzke, Hans-Jörg Bauer, Vincent Peltier, Kunyuan Zhou
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, V08AT22A012, June 13–17, 2022
Paper No: GT2022-82235
DOI: https://doi.org/10.1115/GT2022-82235
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Topics: Transients (Dynamics), Pressure, Stress, Cycles, Engines, Turbomachinery, Hydrostatics, Leakage, Rotation, Rotors
Proceedings Papers

Additively Manufactured Compliant Hybrid Gas Thrust Bearing for sCO 2 Turbomachinery: Experimental Evaluation and Fluid-Structure Model Predictions

Bugra Ertas, Keith Gary, Adolfo Delgado
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A018, September 21–25, 2020
Paper No: GT2020-14964
DOI: https://doi.org/10.1115/GT2020-14964
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Topics: Additive manufacturing, Fluids, Thrust bearings, Turbomachinery, Stress, Bearings, Pressure, Hydrostatics, Thrust, Deflection
Proceedings Papers

Load Influence on Hydrostatic Oil Film Journal Bearing Stiffness Characteristics

Leonid Moroz, Leonid Romanenko, Roman Kochurov, Evgen Kashtanov
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A020, September 21–25, 2020
Paper No: GT2020-15008
DOI: https://doi.org/10.1115/GT2020-15008
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Topics: Bearings, Damping, Hydrostatics, Journal bearings, Stiffness, Stress
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

Static Performance of a Hydrostatic Thrust Foil Bearing for Large Scale Oil-Free Turbomachines

Nguyen LaTray, Daejong Kim, Myongsok Song
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A022, September 21–25, 2020
Paper No: GT2020-15056
DOI: https://doi.org/10.1115/GT2020-15056
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Topics: Foil bearings, Hydrostatics, Stress, Thrust, Turbomachinery
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

Flow Induced Dynamics of Plate Seals

Deepak Trivedi, Bernardo Kerr
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A025, June 17–21, 2019
Paper No: GT2019-90962
DOI: https://doi.org/10.1115/GT2019-90962
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Topics: Dynamics (Mechanics), Flow (Dynamics), Vibration, Plates (structures), Rotors, Hydrostatics, Pressure drop, Stators, Turbomachinery, Boundary-value problems
Proceedings Papers

Supercritical CO 2 Tests for Hydrostatic Film Stiffness in Film-Riding Seals

Deepak Trivedi, Rahul A. Bidkar, Christopher E. Wolfe, Jason Mortzheim
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A018, June 17–21, 2019
Paper No: GT2019-90975
DOI: https://doi.org/10.1115/GT2019-90975
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Topics: Hydrostatics, Stiffness, Supercritical carbon dioxide, Bearings, Temperature, Computational fluid dynamics, Flow (Dynamics), Fluid films, Fluids, Design
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

Tilting-Pad Journal Bearing in Hybrid Operation: A Numerical and Experimental Investigation

Nico Buchhorn, Sebastian Kukla, Beate Bender, Marc Neumann
Proc. ASME. GT2018, Volume 7B: Structures and Dynamics, V07BT34A007, June 11–15, 2018
Paper No: GT2018-75256
DOI: https://doi.org/10.1115/GT2018-75256
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Topics: Journal bearings, Bearings, Deformation, Load bearing capacity, Hydrostatic pressure, Hydrostatics, Turbines, Viscosity, Film thickness, Lubricants
Proceedings Papers

Static Load Performance of a Water Lubricated Hydrostatic Thrust Bearing

Luis San Andrés, Michael Rohmer, Scott Wilkinson
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A008, June 26–30, 2017
Paper No: GT2017-63385
DOI: https://doi.org/10.1115/GT2017-63385
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Topics: Hydrostatics, Stress, Thrust bearings, Water, Flow (Dynamics), Pressure, Bearings, Clearances (Engineering), Rotors, Arches
Proceedings Papers

Rotordynamic Performance of Hybrid Air Foil Bearings With Regulated Hydrostatic Injection

Behzad Zamanian Yazdi, Daejong Kim
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A012, June 26–30, 2017
Paper No: GT2017-63495
DOI: https://doi.org/10.1115/GT2017-63495
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Topics: Foil bearings, Hydrostatics, Engineering simulation, Simulation, Bearings, Friction, Rotors, Vibration, Clearances (Engineering), Drag (Fluid dynamics)
Proceedings Papers

Measurements Versus Predictions for a Hybrid (Hydrostatic Plus Hydrodynamic) Thrust Bearing for a Range of Orifice Diameters

Dara W. Childs, Paul Esser
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A003, June 13–17, 2016
Paper No: GT2016-56213
DOI: https://doi.org/10.1115/GT2016-56213
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Topics: Hydrostatics, Thrust bearings, Bearings, Flow (Dynamics), Fluid films, Orifices, Pressure, Rotors, Stiffness, Water
Proceedings Papers

A Water Lubricated Hybrid Thrust Bearing: Measurements and Predictions of Static Load Performance

Luis San Andrés, Stephen Phillips, Dara Childs
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A010, June 13–17, 2016
Paper No: GT2016-56349
DOI: https://doi.org/10.1115/GT2016-56349
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Topics: Stress, Thrust bearings, Water, Bearings, Flow (Dynamics), Pressure, Rotors, Clearances (Engineering), Thrust, 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

Non-Invasive Parameter Identification in Rotordynamics via Fluid Film Bearings: Linking Active Lubrication and Operational Modal Analysis

Ilmar Ferreira Santos, Peter Kjær Svendsen
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A028, June 13–17, 2016
Paper No: GT2016-57618
DOI: https://doi.org/10.1115/GT2016-57618
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Topics: Bearings, Fluid films, Lubrication, Modal analysis, Rotordynamics, Pressure, Rotors, Damping, Lubricants, Signals
Proceedings Papers

Influence of Gas Feeding Position on the Performance of Radial-Inflow Hydrostatic Gas Ultra-Short Journal Bearings

Chao Nie, Xiaojun Yan, Xia Chen
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A029, June 13–17, 2016
Paper No: GT2016-57709
DOI: https://doi.org/10.1115/GT2016-57709
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Topics: Hydrostatics, Inflow, Journal bearings, Rotors, Clearances (Engineering), Bearings, Stability, Thrust bearings, Computational fluid dynamics, Failure
Proceedings Papers

Design of Hybrid Hydrostatic/Hydrodynamic Journal Bearings for Optimum Self-Compensation Under Misaligning External Loads

L. F. Martinez Esparza, J. G. Cervantes de Gortari, E. J. Chicurel Uziel
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT31A037, June 13–17, 2016
Paper No: GT2016-58125
DOI: https://doi.org/10.1115/GT2016-58125
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Topics: Design, Hydrostatics, Journal bearings, Stress, Bearings, Lubricants, Bearing design, Boundary-value problems, Cavitation, Clearances (Engineering)