文档介绍：
基于有限元方法的浮环轴承油膜特性研究#
周鹏1,周东2,徐文江2,蒋枚利1,宋豫川1**
(1. 重庆大学机械工程学院,重庆 400030;
5
10
15
20
25
30
35
40
2. 重庆江增船舶重工有限公司,重庆 402260)
摘要:本文建立了浮环轴承内外油膜的动态无量纲 RENOYLDS 方程并对其进行了有限元求
解;推导出计入浮环质量的浮环轴承的等效阻尼系数和等效刚度系数,给出了计入浮环质量
的浮环轴承稳定性判定模型;最后通过算例计算了浮环轴承内外油膜的刚度、阻尼、等效刚
度、等效阻尼系数。计算结果表明本文有限元方法求出的刚度和阻尼与 DYROBES 的计算
结果相对误差不超过 5%,是可行的;浮环轴承的等效阻尼、等效刚度并不是简单的内外油
膜刚度、阻尼的串联,而是与内膜刚度、阻尼值相近。
关键词:浮环轴承;有限元方法;等效阻尼;等效刚度;稳定性
中图分类号:
Research of oil-film characteristics of floating ring bearing
based on the finite element method
ZHOU Peng1, ZHOU Dong2, XU Wen Jiang2, JIANG Mei Li1, SONG Yu Chuan1
(1. Mechanical & engineering college, Chongqing University, ChongQing 400030;
2. JiangJin shipbuilding industry CO,LTD, ChongQing 402260)
Abstract: In this paper, the dimensionless dynamic Renoylds equation of inner and outer film of
floating ring bearing is established, and the finite element solution of the Ronylds equation is
The equivalent stiffness coefficient considering the mass of floating ring
bearing expression is deduced and the stability judge model of floating ring bearing considering
mass of floating ring bearing is got. Then, the damping, stiffness, equivalent damping and
equivalent stiffness of inner and outer film of floating ring bearing are caculated by examples. The
results indicated that the relative error of the damping and stiffness obtained by th