径向流体支点可倾瓦轴承润滑特性分析

王晓红; 常山; 裴世源

doi:10.7652/xjtuxb202105008

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径向流体支点可倾瓦轴承润滑特性分析

更新时间：2025-07-09

- 径向流体支点可倾瓦轴承润滑特性分析
- Analysis on Lubrication Performance of Fluid Pivot Tilting Pad Journal Bearings
- 西安交通大学学报 2021年55卷第5期页码：65-72+82
- 作者机构：
  
  中国船舶集团有限公司第703研究所,哈尔滨,150036
- 作者简介：
- 基金信息：
  
  : 2020-12-12。作者简介: 王晓红(1983—),女,高级工程师;裴世源(通信作者),男,副研究员。基金项目: 国家自然科学基金资助项目(51975456)
- DOI：10.7652/xjtuxb202105008
  中图分类号： TH133.31
- 网络首发：2021-05-10，
  
  纸质出版：2021
- 稿件说明：
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王晓红, 常山, 裴世源. 径向流体支点可倾瓦轴承润滑特性分析[J]. 西安交通大学学报, 2021,55(5):65-72+82.

Analysis on Lubrication Performance of Fluid Pivot Tilting Pad Journal Bearings[J]. 2021, 55(5): 65-72+82.
王晓红, 常山, 裴世源. 径向流体支点可倾瓦轴承润滑特性分析[J]. 西安交通大学学报, 2021,55(5):65-72+82. DOI： 10.7652/xjtuxb202105008.

Analysis on Lubrication Performance of Fluid Pivot Tilting Pad Journal Bearings[J]. 2021, 55(5): 65-72+82. DOI： 10.7652/xjtuxb202105008.

摘要

针对径向流体支点可倾瓦轴承结构复杂、瓦块浮动状态难以预测的问题

提出了内层动压油膜和外层静压油膜相互耦合的润滑分析模型与求解方法。对比分析了不同工况下传统固定瓦轴承、机械支点可倾瓦轴承和流体支点可倾瓦轴承的润滑特性

发现流体支点可倾瓦轴承的膜厚、膜压、膜温等关键静特性参数均优于传统固定瓦轴承和机械支点可倾瓦轴承; 直接刚度和直接阻尼等动特性参数高于传统轴承约一个数量级

故其可显著提升轴承安全性和转子系统的稳定性; 在某些工况下瓦块存在两个平衡状态

可能导致瓦块浮动状态和轴承润滑性能发生突变。研究结果可为设计高可靠性流体支点可倾瓦轴承提供一定的参考。

Abstract

To solve the problem of pads floating state prediction of the fluid pivot tilting pad journal bearing

a lubrication analysis model considering the coupling effects of inner hydrodynamic film and outer hydrostatic film was proposed. The lubrication characteristics of traditional fixed pad bearing

mechanical pivot tilting pad bearing and fluid pivot tilting pad bearing under different working conditions were compared. The results show that static characteristics of the fluid pivot tilting pad bearing

such as the film thickness

film pressure and film temperature

are better than that of the traditional fixed pad and tilting pad bearings. Moreover

the direct stiffness and damping are about an order of magnitude higher than the traditional bearings. Therefore

fluid pivot tilting pad bearing can significantly improve the bearing safety and the stability of rotor system. However

pads may suffer two equilibrium states under certain working conditions

which will result in unstable working state and sudden change of bearing performance. This work may provide reference for designing the fluid pivot tilting pad journal bearings.

关键词

Keywords

references

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