文章基本信息

标题：Effect of Viscosity Variation on the Micropolar Fluid Squeeze Film Lubrication of a Short Journal Bearing
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作者：N. B. Naduvinamani ; Archana K. Kadadi
期刊名称：Advances in Tribology
印刷版ISSN：1687-5915
电子版ISSN：1687-5923
出版年度：2013
卷号：2013
DOI：10.1155/2013/743987
出版社：Hindawi Publishing Corporation
摘要：A theoretical study of the effect of the viscosity variation on the squeeze film performance of a short journal bearing operating with micropolar fluid is presented. The modified Reynolds equation accounting for the viscosity variation in micropolar fluid is mathematically derived. To obtain a closed form solution, the short bearing approximation under constant load is considered. The modified Reynolds equation is solved for the fluid film pressure and then the bearing characteristics, such as obtaining the load carrying capacity and the squeeze film time. According to the results evaluated, the micropolar fluid as a lubricant improves the squeeze film characteristics and results in a longer bearing life, whereas the viscosity variation factor decreases the load carrying capacity and squeezes film time. The result is compared with the corresponding Newtonian case.