Swing Characteristic of Pads in Four-pad Tilting Pad Bearing

摘要：

　　Swing characteristic of pads in four-pad tilting pad bearing has been studied systematically with the guide bearing for canned pump motor in fourth generation nuclear power units as object.Theoretical derivation reveals that dimensionless pad pendulum angle depends on structural parameters,preload ratio and eccentricity ratio of the bearing,but is unrelated to viscosity of lubrication oil,shaft rotating speed and clearance.Numerical analysis shows that pad pendulum angle is determined by pad circumferential position,preload ratio and eccentricity ratio.Pad pendulum angle has significant influence on minimum oil film thickness.Pad pendulum angle maybe negative and leads to minimum oil film thickness greater than that of fixed pad.Results of this paper provide basic analysis for safety operation of the canned pump motor in fourth generation nuclear power units.

关键词： Tilting pad bearing Swing characteristic of pads Preload ratio Minimum oil film thickness

作者: Aibin Zhu Yulei Yang Hongyu Xiao Wei Chen

作者单位: Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Theory of Lubrication and Bearing Institute, Xian Jiaotong University Xian ,China

会议类型: 国际会议

会议名称: 2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)

会议地点: 西安

会议语种:英文

页码: 256-259

在线出版日期: 2013-07-01（万方平台首次上网日期，不代表论文的发表时间）