A numerical approach for the analysis of deformable journal bearings

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Published Jun 29, 2012
DOI https://doi.org/10.3221/IGF-ESIS.21.05

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D. Benasciutti
Dip. di Ingegneria Elettrica Gestionale Meccanica (DIEGM), Università di Udine, via delle Scienze 208, 33100, Udine
M. Gallina
Dip. di Ingegneria Elettrica Gestionale Meccanica (DIEGM), Università di Udine, via delle Scienze 208, 33100, Udine
M. Gh. Munteanu
Dip. di Ingegneria Elettrica Gestionale Meccanica (DIEGM), Università di Udine, via delle Scienze 208, 33100, Udine
F. Flumian
Centro Ricerche Danieli (CRD), Danieli Officine Meccaniche S.p.A., via G.B. Beltrame 30, 33042, Buttrio (UD)

Abstract

This paper presents a numerical approach for the analysis of hydrodynamic radial journal bearings. The effect of shaft and housing elastic deformation on pressure distribution within oil film is investigated. An iterative algorithm that couples Reynolds equation with a plane finite elements structural model is solved. Temperature and pressure effects on viscosity are also included with the Vogel-Barus model. The deformed lubrication gap and the overall stress state were calculated. Numerical results are presented with reference to atypical journal bearing configuration at two different inlet oil temperatures. Obtained results show the great influence of elastic deformation of bearing components on oil pressure distribution, compared with results for ideally rigid components obtained by Raimondi and Boyd solution.

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    Issue
    Vol. 6 No. 21 (2012): July 2012
    Section
    Miscellanea

    How to Cite

    Benasciutti, D., Gallina, M., Munteanu, M. G., & Flumian, F. (2012). A numerical approach for the analysis of deformable journal bearings. Frattura Ed Integrità Strutturale, 6(21), 37–45. https://doi.org/10.3221/IGF-ESIS.21.05

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