A boundary slip region design on journal bearings under high speed water lubrication
This paper,based on the two-component slip model,numerically analyzes the tribology performances of journal bearings with boundary slip/no-slip regions on the condition of high speed water lubrication.It is demonstrated that journal bearings with a whole slip sleeve reduce the friction drag and the load carrying capacity.Bearings with a slip/no-slip interval region on sleeve,however,can shorten the cavitation region and enhance the average film pressure,which means the enhancement of load carrying capacity and the reduction of friction drag.When the boundary of the slip and no-slip regions is close to the location between the pressure peak and 180° of the bearing,the load carrying capacity reaches its maximum.Different to loading capacity,friction drag is reduced dramatically with the increase of the slip region.For bearings with small eccentricity ratio,small width and large diameter,the loading capacity and the friction drag can be enhanced and reduced more significantly.
two-component slip model journal bearing boundary slip tribology performance
H.Zhang P.B.Zhang L.G.Qin G.N.Dong
Theory of Lubrication and Bearing Institute Xian Jiaotong University Xian 710049, China
国际会议
2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)
西安
英文
16-20
2013-07-01（万方平台首次上网日期，不代表论文的发表时间）