On the Correlation Between Mechanical Degradation of Lubricating Grease and Entropy

被引：61

作者：

Rezasoltani, Asghar ^{[1
]}

Khonsari, M. M. ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Mech & Ind Engn, Baton Rouge, LA 70803 USA

来源：

TRIBOLOGY LETTERS | 2014年 / 56卷 / 02期

关键词：

Grease degradation; Entropy generation; Shear degradation; Grease worker; Grease penetration; THERMODYNAMICS; GENERATION;

D O I：

10.1007/s11249-014-0399-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Irreversible thermodynamic theory is employed to study the mechanical degradation of lubricating grease undergoing shearing action. A correlation between the mechanical degradation of grease and entropy generation is established, and the results are verified experimentally using a rheometer, a journal bearing test rig, and a modified grease worker machine. It is shown that the degradation rate is linearly related to the entropy generation and that it can be used for estimation of the mechanically degraded grease life.

引用

页码：197 / 204

页数：8

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