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Structural properties of foil bearings: a closed-form solution validated with finite element analysis
Abstrakt
Fluid film thickness in a compliant foil bearing is greatly influenced by the deflection of the bearing structure. Therefore, in order to properly model performance of a foil bearing, it is mandatory that the deflection of the compliant bearing structure due to the generated hydrodynamic pressure is determined accurately. This article proposes an easy-to-use two-dimensional model, which takes into account detailed geometry of the bump foil-top foil assembly and the interaction between bumps and which can predict the bearing deflection and stresses due to an arbitrary pressure load. The proposed model is first validated using a finite element analysis and the results available in the literature and then used to conduct a parametric study investigating the influence of bump foil geometry, the coefficient of friction between the bearing components, and the type of loading on the structural properties of the bearing. The most important parameters are also identified. The proposed analytical model is completely algebraic and can be easily implemented using any programming language, a spreadsheet, or even a calculator. The resulting solution can also be coupled with the appropriate hydrodynamic model to predict static performance of compliant foil bearings.
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Autorzy (4)
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Romuald Rządowski
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
TRIBOLOGY TRANSACTIONS
nr 52,
strony 435 - 446,
ISSN: 1040-2004 - Język:
- angielski
- Rok wydania:
- 2009
- Opis bibliograficzny:
- Hryniewicz P., Wodtke M., Olszewski A., Rządowski R.: Structural properties of foil bearings: a closed-form solution validated with finite element analysis // TRIBOLOGY TRANSACTIONS. -Vol. 52, nr. iss. 4 (2009), s.435-446
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1080/10402000802687916
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 146 razy
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