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Proceedings Papers

Numerical Analysis of the Effect of Geometric Variations on the Mass Flow Distribution for an Under-Race Lubrication System

Daniel Mateo Aguirre Bermudez, Aju Abraham, Shreyas Joshi, Corina Schwitzke, Hans-Jörg Bauer
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122481
https://doi.org/10.1115/GT2024-122481
View Paper titled, Numerical Analysis of the Effect of Geometric Variations on the Mass Flow Distribution for an Under-Race Lubrication System
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Topics: Flow (Dynamics), Industrial lubrication systems, Lubrication, Numerical analysis, Cavities, Cooling, Aircraft engines, Bearings, Engineering simulation, Film thickness
Proceedings Papers

Ignition of Aged Lubricants in a Shock Tube

Matthew Abulail, Raquel Juárez, Eric L. Petersen
Proc. ASME. GT2024, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A070, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126713
https://doi.org/10.1115/GT2024-126713
View Paper titled, Ignition of Aged Lubricants in a Shock Tube
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Topics: Coke, Ignition, Lubricants, Shock tubes
Proceedings Papers

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

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

Tribological Evaluation of Coatings for Air Foil Bearing Applications

Eleftherios Iakovakis, Sepideh Aliasghari, Philip Bonello, Allan Matthews, Michael Burkinshaw, Simon Moore
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T17A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121771
https://doi.org/10.1115/GT2024-121771
View Paper titled, Tribological Evaluation of Coatings for Air Foil Bearing Applications
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Topics: Coatings, Diamond films, Foil bearings, Friction, Lubricants, Tribology
Proceedings Papers

The Role of the Working Fluid and Non-Ideal Thermodynamic Effects on Performance of Gas Lubricated Bearings

Wessel de Waart, Matteo Pini
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, V10AT22A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127645
https://doi.org/10.1115/GT2024-127645
View Paper titled, The Role of the Working Fluid and Non-Ideal Thermodynamic Effects on Performance of Gas Lubricated Bearings
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Topics: Bearings, Fluids, Gas bearings, Turbomachinery, Bulk modulus, Machinery, Rotors, Turbines, Vapors, Contamination
Proceedings Papers

Temperature Dependence of Aerated Turbine Lubricating Oil Degradation From a Lab-Scale Test Rig

Raquel Juárez, Barry Creighton, Eric L. Petersen
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT31A008, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128396
https://doi.org/10.1115/GT2024-128396
View Paper titled, Temperature Dependence of Aerated Turbine Lubricating Oil Degradation From a Lab-Scale Test Rig
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Topics: Lubricants, Lubricating oils, Oxidation, Temperature effects, Turbines, Temperature, Electromagnetic induction, Engines, Coke, Economics
Proceedings Papers

Effect of Reduced Oil Flow Rate on the Performance of a Load on Pad Journal Bearing: Flooded vs. Evacuated Conditions

Luis San Andrés, Zihan Ouyang, Yudi Qin
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A025, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103242
https://doi.org/10.1115/GT2023-103242
View Paper titled, Effect of Reduced Oil Flow Rate on the Performance of a Load on Pad Journal Bearing: Flooded vs. Evacuated Conditions
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Damping, Temperature, Babbitt metal, Energy consumption, Failure
Proceedings Papers

Temperature Effect on Solid Deposit Formation in Turbine Lubricants

Raquel Juárez, Noble Gutierrez, Eric L. Petersen
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT31A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102096
https://doi.org/10.1115/GT2023-102096
View Paper titled, Temperature Effect on Solid Deposit Formation in Turbine Lubricants
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Topics: Coke, High temperature, Lubricants, Temperature, Turbines, Electromagnetic induction, Oils, Petroleum, Carbon, Constants (Physics)
Proceedings Papers

Life-Cycle-Assessment for Rough Machining of Inconel 718 Comparing Ceramic to Cemented Carbide End Mills

Kilian Fricke, Richard Zimmermann, Philipp Ganser, Sascha Gierlings, Thomas Bergs
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A020, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82910
https://doi.org/10.1115/GT2022-82910
View Paper titled, Life-Cycle-Assessment for Rough Machining of Inconel 718 Comparing Ceramic to Cemented Carbide End Mills
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Topics: Ceramics, Life cycle assessment, Machining, Surface roughness, Compressors, Temperature, Alloys, Cycles, High pressure (Physics), Nickel alloys
Proceedings Papers

Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions

Luis San Andrés, Andy Alcantar
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, V08AT22A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81839
https://doi.org/10.1115/GT2022-81839
View Paper titled, Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Temperature, Damping, Fluid films, Lubricants, Machinery
Proceedings Papers

Experimental Investigation of Friction Damping in Blade Root Joints

Daniele Botto, Veronica Iannotti, Federica Cuccovillo
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81663
https://doi.org/10.1115/GT2022-81663
View Paper titled, Experimental Investigation of Friction Damping in Blade Root Joints
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Topics: Blades, Damping, Friction, Disks, Stress, Vibration, Design, Dynamics (Mechanics), Excitation systems, Experimental analysis
Proceedings Papers

Combustion and Oxidation of Lube Oils at Gas Turbine Conditions: Experimental Methods

Eric L. Petersen, Olivier Mathieu, James C. Thomas, Sean P. Cooper, David S. Teitge, Raquel Juárez, Nobel Gutierrez, Chad V. Mashuga
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A045, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60319
https://doi.org/10.1115/GT2021-60319
View Paper titled, Combustion and Oxidation of Lube Oils at Gas Turbine Conditions: Experimental Methods
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Topics: Combustion, Experimental methods, Gas turbines, Ignition, Oils, Oxidation, Petroleum, Temperature, High temperature, Lubricants
Proceedings Papers

Thermohydrodynamic Modeling of a Tapered-Land Thrust Bearing With Validation Against Experimental Data

Seckin Gokaltun
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A025, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60203
https://doi.org/10.1115/GT2021-60203
View Paper titled, Thermohydrodynamic Modeling of a Tapered-Land Thrust Bearing With Validation Against Experimental Data
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Topics: Modeling, Thermohydrodynamics, Thrust bearings, Bearings, Stress, Fluid films, Heat transfer, Computational fluid dynamics, Deformation, Pressure
Proceedings Papers

Measurements to Quantify the Effect of a Reduced Flow Rate on the Performance of a Tilting Pad Journal Bearing (LBP) With Flooded Ends

Luis San Andrés, Jonathan Toner, Andy Alcantar
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A007, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58771
https://doi.org/10.1115/GT2021-58771
View Paper titled, Measurements to Quantify the Effect of a Reduced Flow Rate on the Performance of a Tilting Pad Journal Bearing (LBP) With Flooded Ends
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Temperature, Drag (Fluid dynamics), Babbitt metal, Damping, Energy efficiency, Floods
Proceedings Papers

Evaluation of the Rotor Temperature Distribution of an Automotive Turbocharger Under Hot Gas Conditions Including Indirect Experimental Validation

Christopher Zeh, Ole Willers, Thomas Hagemann, Hubert Schwarze, Joerg R. Seume
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A051, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16077
https://doi.org/10.1115/GT2020-16077
View Paper titled, Evaluation of the Rotor Temperature Distribution of an Automotive Turbocharger Under Hot Gas Conditions Including Indirect Experimental Validation
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Topics: Computational fluid dynamics, Heat transfer, Rotors, Temperature, Temperature distribution, Turbochargers, Bearings, Flow (Dynamics), Fluid films, Heat
Proceedings Papers

Modelling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications

K. Singh, M. Sharabi, R. Jefferson-Loveday, S. Ambrose, C. Eastwick, J. Cao, A. Jacobs
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A046, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15845
https://doi.org/10.1115/GT2020-15845
View Paper titled, Modelling of Partially Wetting Liquid Film Using an Enhanced Thin Film Model for Aero-Engine Bearing Chamber Applications
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Topics: Aircraft engines, Bearings, Liquid films, Modeling, Thin films, Wetting, Flow (Dynamics), Film thickness, Cooling, Drying
Proceedings Papers

On the Effect of the Gap of End Seals on Force Coefficients of a Test Integral Squeeze Film Damper: Experiments and Predictions

Luis San Andrés, Xueliang Lu, Bonjin Koo, Scott Tran
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A005, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14182
https://doi.org/10.1115/GT2020-14182
View Paper titled, On the Effect of the Gap of End Seals on Force Coefficients of a Test Integral Squeeze Film Damper: Experiments and Predictions
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Topics: Dampers, Damping, Bearings, Lubricants, Rotors, Stiffness, Clearances (Engineering), Flow (Dynamics), Stress, Compressibility
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
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15520
https://doi.org/10.1115/GT2020-15520
View Paper titled, A General-Purpose Test Facility for Evaluating Gas Lubricated Thrust Bearings
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Topics: Test facilities, Thrust bearings, Bearings, Fluids, Design, Gas turbines, Hydrostatics, Lubricants, Stress, Testing
Proceedings Papers

Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture

Luis San Andrés, Bonjin Koo
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A010, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90330
https://doi.org/10.1115/GT2019-90330
View Paper titled, Model and Experimental Verification of the Dynamic Forced Performance of a Tightly Sealed Squeeze Film Damper Supplied With a Bubbly Mixture
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Topics: Dampers, Pressure, Lubricants, Damping, Cycles, Flow (Dynamics), Inertia (Mechanics), Piston rings, Stiffness, Whirls
Proceedings Papers

Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing

Rasool Koosha, Luis San Andrés
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A006, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90231
https://doi.org/10.1115/GT2019-90231
View Paper titled, Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing
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Topics: Materials properties, Stress, Thrust bearings, Steel, Polymers, Temperature, Drag (Fluid dynamics), Fluid films, Babbitt metal, Film thickness