A bump-type foil bearing consists of a compliant corrugated sheet metal supporting structure that is covered by a thin top foil surface. Bumps serve as stiffener and damping elements to increase the stability of the system while top foil creates necessary wedge surface for aerodynamic film formation. Foil bearings are hard to analyze as flexible foil surface deforms and changes shape while aerodynamic film pressure forms. Iterative solutions required typical of EHL analysis. This work utilizes Reynolds Equation to solve aerodynamic film pressure by coupling structural deformation and the fluid film pressure formation. Bearing performance under various operating conditions and the effect of differential pressure boundary condition on sealing capacity is discussed.
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STLE/ASME 2010 International Joint Tribology Conference
October 17–20, 2010
San Francisco, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4419-9
PROCEEDINGS PAPER
A Simple FEM Model for Foil Bearings Under Differential Pressure Available to Purchase
Serdar Aksoy,
Serdar Aksoy
Sabanci University, Istanbul, Turkey
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Mahmut Faruk Aksit,
Mahmut Faruk Aksit
Sabanci University, Istanbul, Turkey
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Yahya Dogu
Yahya Dogu
Kirikkale University, Kirikkale, Turkey
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Serdar Aksoy
Sabanci University, Istanbul, Turkey
Mahmut Faruk Aksit
Sabanci University, Istanbul, Turkey
Yahya Dogu
Kirikkale University, Kirikkale, Turkey
Paper No:
IJTC2010-41257, pp. 163-166; 4 pages
Published Online:
April 14, 2011
Citation
Aksoy, S, Aksit, MF, & Dogu, Y. "A Simple FEM Model for Foil Bearings Under Differential Pressure." Proceedings of the STLE/ASME 2010 International Joint Tribology Conference. STLE/ASME 2010 International Joint Tribology Conference. San Francisco, California, USA. October 17–20, 2010. pp. 163-166. ASME. https://doi.org/10.1115/IJTC2010-41257
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