Rotordynamic Analysis of Gas Foil-Polymer Bearings Based on a Structural Elasticity Model of Polymer Layer along with Static-Load Deflection Tests
نویسندگان
چکیده
In this study, rotordynamic analysis is performed using a simple structural model for the polymer layer of gas foil-polymer bearing (GFPB) composed an accumulated bump foil and with high damping. The that considers elastic behavior cylinder-shaped introduced, stiffness estimated based on Hooke’s law differential elements in layer. addition, coupled consideration series relationship, which represents GFPBs. A GFPB thickness 2 mm fabricated, validated via static-load deflection tests GFPB. As result validation, proposed found to be effective predicting under lightly loaded condition Next, static performances GFPBs, namely, gas-film pressure, thickness, journal positions respect different are analyzed evaluate stability results indicate yields increase damping decrease cross-coupled effects. Specifically, 3 mm-thick gives best performance given predicted results. result, work provides reasonable elasticity GFPBs lays foundation widespread use
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11041789