Parametric design of surface textures on journal bearing

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

39 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)359-369
Journal / PublicationIndustrial Lubrication and Tribology
Volume67
Issue number4
Publication statusPublished - 2015

Abstract

Purpose - The main purpose of this paper is to understand and model the hydrodynamic influence of surface textures on journal bearings. Design/methodology/approach - In the model, a rectangular array of circle dimples is used to modify the film thickness expression. In full film and cavitation regions, classical Reynolds equation and Reynolds boundary condition are used as the governing equations, respectively. By setting high load bearing capacity as the main optimal goal, the influence of textures on tribological characteristics is studied to get the optimal distribution and parameters of textures. Findings - The results suggest that the load bearing capacity of a journal bearing may be improved through appropriate arrangement of textures partially covering its sleeve. The reduction of the cavitation area may also be achieved by arranging the textures in divergent region. With a high density distribution of textures which have step depths varying linearly along the circumferential direction of the bearing, the load bearing capacity enhancement seems to give good performance. Comparing with smooth bearing, the load bearing capacity enhancement of such textures is about 56.1 per cent, although the influence of texture diameters for the same area density seems insignificant. Originality/value - The paper shows how surface textures can be designed on journal bearing to improve its tribological performances.

Research Area(s)

  • Journal bearing, Surface textures, Tribological performance

Citation Format(s)

Parametric design of surface textures on journal bearing. / Zhang, Hui; Dong, Guangneng; Hua, Meng; Guo, Feifei; Chin, Kwai Sang.

In: Industrial Lubrication and Tribology, Vol. 67, No. 4, 2015, p. 359-369.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review