文献类型：期刊文献

中文题名：弹流润滑悬挂式转子支承轴承轴向刚度的计算

英文题名：Calculation on Axial Stiffness of Supporting Bearings of Vertical Overhung Rotors with EHL

作者：吴昊[1];王建文[1];安琦[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2008

卷号：34

期号：3

起止页码：447

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20083011399779);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：悬挂式转子;圆锥滚子轴承;轴向刚度;流弹理论

外文关键词：overhung rotor; tapered roller bearing; axial stiffness; EHL

摘要：以悬挂式转子的圆锥滚子支承轴承为研究对象,根据Hertz接触理论得出了沿圆锥滚子母线方向的弹性变形量表达式;根据弹性流体动力润滑的Dowson-Higginson油膜厚度公式得出了沿圆锥滚子母线的油膜厚度表达式;推导出考虑油膜厚度时计算圆锥滚子轴承轴向刚度的数学公式。并用一个实际算例说明,当轴向载荷不高的情况下,油膜的存在对轴承刚度影响较大,实际计算中不应忽略。
The tapered roller bearing of the overhung rotor was investigated. The load distribution of the tapered roller bearing was analyzed and the elastic deformation of the roller along the generatrix was educed. Simultaneity, the film thickness along the generatrix was got by using EHL theory and Dowson- Higginson formula. Afterward, a calculating equation to calculate the axial stiffness of roller bearing was developed. An example indicates that under a light load, the oil-film plays a more important role on the radial stiffness and cannot be ignored.