Modelling of friction in a ball joint in mixed lubrication

被引：2

作者：

Clarke, S. J. ^{[1
]}

Bell, M. A. ^{[2
]}

机构：

[1] Kawasaki Precis Machinery UK Ltd, Plymouth PL5 2SA, Devon, England

[2] Univ Plymouth, Sch Mech Engn, Plymouth PL4 8AA, Devon, England

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2008年 / 222卷 / 02期

关键词：

ball joint; boundary; mixed; friction; hydraulic; lubrication; mechanical efficiency; motor; surface finish; squeeze film; tribology;

D O I：

10.1243/09544062JMES437

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

This article describes a model used to predict the friction in a ball joint of a hydraulic motor operating under unique conditions. The ball joint transfers very high loads and rotates at very low speeds (including zero speed twice per motor revolution), which means that it operates in the mixed and boundary lubrication regimes. The model includes the influence of a squeeze film. It also shows the dependence of friction on the various surface qualities and is used to predict overall motor performance. The model was validated using hydraulic motors with various surface finishes on the ball joints. Measurements show that the model is a good predictor of mechanical performance and that the key variables highlighted by the model do lead to improved mechanical efficiencies.

引用

页码：267 / 275

页数：9