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Keywords: oil-free turbomachinery
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Journal Articles

Thermal Performance Measurement of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load

Tae Ho Kim, Jin Woo Song, Yong-Bok Lee, Kyuho Sim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. February 2012, 134(2): 024501.
https://doi.org/10.1115/1.4004401
Published Online: December 8, 2011
...Tae Ho Kim; Jin Woo Song; Yong-Bok Lee; Kyuho Sim Identifying thermal characteristics of gas foil bearings (GFBs) provides an insight for successful implementation into high speed oil-free turbomachinery. The paper presents temperature measurements of a bump type GFB floating on a hollow shaft...
View Articletitled, Thermal Performance Measurement of a Bump Type Gas Foil Bearing Floating on a Hollow Shaft for Increasing Rotating Speed and Static Load
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Topics: Bearings, Foil bearings, Stress, Temperature, Turbomachinery, Temperature measurement, Clearances (Engineering), Strain gages, Thermocouples
Journal Articles

Design and Performance Prediction of Hybrid Air Foil Thrust Bearings

Donghyun Lee, Daejong Kim
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2011, 133(4): 042501.
https://doi.org/10.1115/1.4002249
Published Online: November 18, 2010
...Donghyun Lee; Daejong Kim Air foil bearings (AFBs) have been recognized as the most promising for oil-free turbomachinery. However, the applications of AFBs to the relatively large turbomachinery have many technical challenges due to limited load capacity and wear during start/stops. A hybrid air...
View Articletitled, Design and Performance Prediction of Hybrid Air Foil Thrust Bearings
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Topics: Bearings, Damping, Deflection, Design, Hydrostatics, Pressure, Stiffness, Thrust, Thrust bearings, Turbomachinery
Journal Articles

Rotordynamic Performance of Flexure Pivot Hydrostatic Gas Bearings for Oil-Free Turbomachinery

Xuehua Zhu, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. October 2007, 129(4): 1020–1027.
https://doi.org/10.1115/1.2720518
Published Online: January 2, 2007
... and Wilde ( 8 ) advance the accurate and numerically stable finite element analysis of gas bearings into very high-speed numbers. References 9 10 11 detail the research at the authors’ institution on inexpensive gas bearings for oil-free turbomachinery. Wilde and San Andrés ( 10 11 ) report...
View Articletitled, Rotordynamic Performance of Flexure Pivot Hydrostatic Gas Bearings for Oil-Free Turbomachinery
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Topics: Bearings, Damping, Gas bearings, Hydrostatics, Rotors, Stiffness, Turbomachinery, Pressure, Bending (Stress)