Mathematical Modeling of Journal Bearing Lubricated with Non-Newtonian Fluid

M. Kouider; Z. Djallel; Y. AbdelkaderK. Sahraoui

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Mathematical Modeling of Journal Bearing Lubricated with Non-Newtonian Fluid

机译：Mathematical Modeling of Journal Bearing Lubricated with Non-Newtonian Fluid

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In this work it has been theoretically studied the influence of the non-Newtonian fluids on the lubricated hydrodynamic journal bearings. For this purpose, a FORTRAN program was developed to resolve the two-dimensional Reynolds equation in polar coordinates. Hence, a finite difference method was used. Initially, dynamic viscosity values are determined for the different non-Newtonian lubricants using Walther equation model. The journal bearing behavior has been simulated according to the eccentricity ratio, the L/Ds ratio and the rheological characteristic index in case of industrial lubricating oils in accordance with ISO 3448 standard especially ISO-VG32, ISO-VG46 and ISO-VG68. The simulation has allowed performing analysis of journal bearing performances according to pressure, bearing load capacity and oil flow rate. The study concludes that the hydrodynamic characteristics of the journal bearing are influenced by the type of lubricant, eccentricity ratio and the L/D ratio.

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来源
《Tribology in Industry》 |2021年第4期|615-623|共9页
作者
M. Kouider; Z. Djallel; Y. AbdelkaderK. Sahraoui;
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作者单位

Laboratory of Mechanical Engineering, Materials and Structures, Tissemsilt University;

Universite des Sciences et de la Technologies d'Oran Mohamed Boudiaf;

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原文格式 PDF
正文语种英语
中图分类摩擦理论;
关键词
Journal hydrodynamic bearing; Finite difference method; Non-Newtonian lubricants; Walther equation; Reynolds equation;

Mathematical Modeling of Journal Bearing Lubricated with Non-Newtonian Fluid

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