期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：3
页码：3071
DOI：10.15680/IJIRSET.2016.0503055
出版社：S&S Publications
摘要：Computational methods were used to analyse the elastic-hydrodynamic lubrication of a complex rotor–bearing system. The methodology employed computational fluid dynamics (CFD), based on the Navier–Stokesequation and a fluid–structure interaction (FSI) technique. A series of models representing the system were built usingthe CFD–FSI methodology to investigate the interaction between the lubrication of the fluid film, and elastic dynamicsof the rotor and journal bearing. Journal bearings have the longest history of scientific study of any class of fluid filmbearings. In a fluid film bearing, the pressure in the oil film satisfies the Reynolds equation which intern is a function offilm thickness. Hydrodynamic journal bearings are analysed by using Computational fluid dynamics (CFD) and fluidstructure interaction (FSI) approach in order to find deformation of the bearing. The present work focuses on journalbearings for L/D ratio and different eccentricity ratios are modelled in 3D modelling software CATIA. The L/D ratioconsidered is 0.5 and eccentricity ratios considered are 0.2, 0.4, 0.6 and 0.8 and lubricants considered are SAE 20 &SAE 40 oils. Journal bearing models are developed for speed of 2000 rpm to study the interaction between the fluid andelastic behaviour of the bearing. The speed is the input for CFD analysis and the pressure obtained from the CFDanalysis is taken as input for structural analysis. Computational fluid dynamics (CFD) and fluid structure interaction(FSI) is done in ANSYS.
