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Proceedings Papers

Oil Film Thickness Measurements on Surfaces Close to an Aero-Engine Ball Bearing Using Optical Techniques

Jee Loong Hee, R. Santhosh, Kathy Simmons, Graham Johnson, David Hann, Michael Walsh

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A017, June 26–30, 2017

Paper No: GT2017-63813

DOI: https://doi.org/10.1115/GT2017-63813

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Topics: Aircraft engines, Ball bearings, Film thickness, Bearings, Stress, Flow (Dynamics), Engines, Knudsen number, Imaging, Gas turbines

Proceedings Papers

Experimental Investigation of Oil Shedding From an Aero-Engine Ball Bearing at Moderate Speeds

R. Santhosh, Jee Loong Hee, Kathy Simmons, Graham Johnson, David Hann, Michael Walsh

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A018, June 26–30, 2017

Paper No: GT2017-63815

DOI: https://doi.org/10.1115/GT2017-63815

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Topics: Aircraft engines, Ball bearings, Bearings, Stress, Engines, Flow (Dynamics), Knudsen number, Rotating disks, Design, Gas turbines

Proceedings Papers

Velocity Measurements in the Vicinity of the Exit and Inlet of a Spiral Bevel Gear Shroud

Kathy Simmons, Graham Johnson

Proc. ASME. GT2015, Volume 5C: Heat Transfer, V05CT15A031, June 15–19, 2015

Paper No: GT2015-43549

DOI: https://doi.org/10.1115/GT2015-43549

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Topics: Spiral bevel gears, Velocity measurement, Flow (Dynamics), Gears, Computational fluid dynamics, Bevel gears, Boundary-value problems, Containment, Gas turbines, Laser Doppler anemometry

Journal Articles

Effect of Pressure and Oil Mist on Windage Power Loss of a Shrouded Spiral Bevel Gear

Kathy Simmons, Graham Johnson, Nikolas Wiedemann

J. Eng. Gas Turbines Power. August 2012, 134(8): 081202.

DOI: https://doi.org/10.1115/1.4005984

Published Online: June 29, 2012

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Topics: Gears, Pressure, Sprays

Proceedings Papers

Effect of Pressure and Oil Mist on Windage Power Loss of a Shrouded Spiral Bevel Gear

Kathy Simmons, Graham Johnson, Nikolas Wiedemann

Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 327-335, June 6–10, 2011

Paper No: GT2011-46426

DOI: https://doi.org/10.1115/GT2011-46426

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Topics: Pressure, Spiral bevel gears, Fluids, Gears, Density, Bevel gears, Gas turbines, Heat, Measurement systems, Mechanical drives

Proceedings Papers

Windage Power Losses From Spiral Bevel Gears With Varying Oil Flows and Shroud Configurations

Graham Johnson, Budi Chandra, Colin Foord, Kathy Simmons

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1415-1421, June 9–13, 2008

Paper No: GT2008-50424

DOI: https://doi.org/10.1115/GT2008-50424

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Topics: Flow (Dynamics), Spiral bevel gears, Gears, Torque, Bevel gears, Design, Torque measurement, Aircraft engines, Engines, Fittings

Proceedings Papers

Experimental Investigations of Film Flows Around Obstacles

Johannes Kneer, Carol Eastwick, Armin Mu¨ller, Graham Johnson, Adam Robinson, Hans-Jo¨rg Bauer

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1461-1470, June 9–13, 2008

Paper No: GT2008-50630

DOI: https://doi.org/10.1115/GT2008-50630

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Topics: Bearings, Film flow

Proceedings Papers

Experimental Investigation Into the Behaviour Within Flush Offtake Pipes

Helge Dagefo¨rde, Carol Eastwick, Adam Robinson, Graham Johnson, Sinisˇa Kontin, Hans-Jo¨rg Bauer

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1471-1481, June 9–13, 2008

Paper No: GT2008-50632

DOI: https://doi.org/10.1115/GT2008-50632

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Topics: Pipes, Flow (Dynamics), Liquid films, Water, Aircraft engines, Fluids, Temperature, Visualization, Bearings, Circuits

Journal Articles

Windage Power Losses From Spiral Bevel Gears With Varying Oil Flows and Shroud Configurations

Graham Johnson, Budi Chandra, Colin Foord, Kathy Simmons

J. Turbomach. October 2009, 131(4): 041019.

DOI: https://doi.org/10.1115/1.3072519

Published Online: July 13, 2009

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Topics: Flow (Dynamics), Gears, Torque, Spiral bevel gears

Proceedings Papers

Experimental Investigation Into Windage Power Loss From a Shrouded Spiral Bevel Gear

Graham Johnson, Kathy Simmons, Colin Foord

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 57-66, May 14–17, 2007

Paper No: GT2007-27885

DOI: https://doi.org/10.1115/GT2007-27885

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Topics: Spiral bevel gears, Gears, Design, Bearings, Rotation, Aircraft engines, Cooling, Flow (Dynamics), Gas turbines, Heat

Proceedings Papers

The Effect of Obstacles in a Liquid Film

Carol Eastwick, Lucie Bertin, Graham Johnson

Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 1443-1452, May 8–11, 2006

Paper No: GT2006-90520

DOI: https://doi.org/10.1115/GT2006-90520

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Topics: Bearings, Film flow, Liquid films, Waves, Flow (Dynamics), Shapes, Cooling, Film thickness, Heat transfer coefficients, Shear (Mechanics)

Journal Articles

Gear Windage: A Review

Carol N. Eastwick, Graham Johnson

J. Mech. Des. March 2008, 130(3): 034001.

DOI: https://doi.org/10.1115/1.2829983

Published Online: February 14, 2008

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Topics: Gears

Journal citation

NARROW

Oil Film Thickness Measurements on Surfaces Close to an Aero-Engine Ball Bearing Using Optical Techniques

Experimental Investigation of Oil Shedding From an Aero-Engine Ball Bearing at Moderate Speeds

Velocity Measurements in the Vicinity of the Exit and Inlet of a Spiral Bevel Gear Shroud

Effect of Pressure and Oil Mist on Windage Power Loss of a Shrouded Spiral Bevel Gear

Effect of Pressure and Oil Mist on Windage Power Loss of a Shrouded Spiral Bevel Gear

Windage Power Losses From Spiral Bevel Gears With Varying Oil Flows and Shroud Configurations

Experimental Investigations of Film Flows Around Obstacles

Experimental Investigation Into the Behaviour Within Flush Offtake Pipes

Windage Power Losses From Spiral Bevel Gears With Varying Oil Flows and Shroud Configurations

Experimental Investigation Into Windage Power Loss From a Shrouded Spiral Bevel Gear

The Effect of Obstacles in a Liquid Film

Gear Windage: A Review

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