Analysis of Static and Dynamic Performance Characteristics of THD Journal Bearing Operating Under Lubricants Containing Nanoparticles

被引：24

作者：

Kalakada, Sreedhar Babu ^{[1
]}

Kumarapillai, Prabhakaran Nair ^{[1
]}

Perikinalil, Rajendrakumar Krishnan ^{[1
]}

机构：

[1] Natl Inst Technol Calicut, Dept Mech Engn, Calicut 673601, Kerala, India

来源：

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | 2012年 / 13卷 / 10期

关键词：

Journal bearing; Lubricant additives; Nanoparticles; Performance characteristics; VISCOSITY; TEMPERATURE; NANOFLUIDS; PRESSURE; BEHAVIOR; VOLUME; OIL;

D O I：

10.1007/s12541-012-0245-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the static and dynamic performance characteristics of journal bearing in terms of load capacity, attitude angle, end leakage, frictional force. threshold speed and damped frequency are presented when the bearing operating under lubricants, which contain nanoparticles and viscosity of these lubricants varies with temperature. The nanoparticles used for the present work are copper oxide (CuO), cerium oxide (CeO2) and aluminum oxide (Al2O3). Viscosity models for the lubricants are developed with the available experimental data. The modified Reynolds and energy equations are used to obtain pressure and temperature distribution across the lubricant film and these equations are solved by using the finite-element method and a direct iteration scheme. The static and dynamic performance characteristics of journal bearing are computed for various values of eccentricity ratios for isoviscous and thermoviscous lubricants. The computed results show that in isoviscous case, addition of nanoparticles does not change performance characteristics considerably but in thermoviscous case, changes are significant.

引用

页码：1869 / 1876

页数：8

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