并联封闭式挤压油膜阻尼器的多孔质可倾瓦轴承性能分析与试验验证

doi:10.3901/JME.2023.01.151

机械工程学报 ›› 2023, Vol. 59 ›› Issue (1): 151-161.doi: 10.3901/JME.2023.01.151

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并联封闭式挤压油膜阻尼器的多孔质可倾瓦轴承性能分析与试验验证

王建伟, 李航, 吴元辉, 范嘉辉, 冯凯

湖南大学汽车车身先进设计制造国家重点实验室长沙 410082

收稿日期:2021-12-07 修回日期:2022-07-15 出版日期:2023-01-05 发布日期:2023-03-30
通讯作者: 冯凯(通信作者),男,1982年出生,博士,教授,博士研究生导师。主要研究方向为高速、精密气体润滑技术;主动/智能气体轴承技术;振动分析与控制;转子动力学;微型燃气轮机、离心空压机;低重力气浮系统控制;超精密气浮平台。E-mail:kfeng@hnu.edu.cn
作者简介:王建伟,男,1990年出生,博士研究生。主要研究方向为高速、精密气体润滑技术,振动分析与控制。E-mail:hnwjw1990@163.com
基金资助:
国家重点研发计划（2019YFB1504600）、国家自然科学基金（52005170）、湖南省自然科学基金（2020JJ5065）和中国空间技术研究院（CAST）基金会资助项目。

Performance Analysis and Test Verification of Porous Tilting Pad Bearings with Hermetically Sealed Squeeze Film Damper in Parallel

WANG Jianwei, LI Hang, WU Yuanhui, FAN Jiahui, FENG Kai

State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082

Received:2021-12-07 Revised:2022-07-15 Online:2023-01-05 Published:2023-03-30

摘要/Abstract

摘要： 鉴于封闭式挤压油膜阻尼器（Hermetically sealed squeeze film damper，HSFD）良好的阻尼性能，并联HSFD的多孔质可倾瓦轴承（Porous tilting pad bearing，PTPBs）有望用于兆瓦级涡轮机械，具有广泛的应用前景。呈现了一种HSFD等效刚度和等效阻尼的计算方法，该方法成功体现了阻尼器刚度和阻尼的"频率依赖"特性。将HSFD与多孔质瓦块模型耦合建立了该轴承的综合理论模型，并进一步验证了该模型的正确性。最后研究了供气压力、轴承间隙以及是否安装HSFD等对轴承静动态特性的影响。结果表明，HSFD的存在大幅提高了轴承的阻尼水平和稳定性。

关键词: 挤压油膜阻尼器, 阻尼性能, 理论模型, 多孔质可倾瓦轴承, 静动态特性

Abstract: Porous tilting pad bearings (PTPBs) with hermetically sealed squeeze film dampers(HSFD) in parallel is considered to be used in the MW turbomachinery and has a wide range of application prospects, considering the satisfactory damping of HSFD. A numerical method is presented in this study to estimate the equivalent stiffness and equivalent damping of HSFD, and the frequency dependent of stiffness and damping is reflected successfully. A comprehensive theoretical model of PTPBs with HSFD in parallel is proposed by coupling the HSFD and porous models through the equation of motion of tilting pad, which is verified through experiments. The effects of many parameters, such as supply pressure, bearing clearance, and whether install HSFD are discussed. Results show that the damping and stability of PTPBs with HSFD in parallel is much higher than those of PTPBs.

Key words: dermetically sealed squeeze film damper(HSFD), damper performance, theoretical model, porous tilting bearing (PTPBs), static and dynamic characteristics

中图分类号:

TH113.1

王建伟, 李航, 吴元辉, 范嘉辉, 冯凯. 并联封闭式挤压油膜阻尼器的多孔质可倾瓦轴承性能分析与试验验证[J]. 机械工程学报, 2023, 59(1): 151-161.

WANG Jianwei, LI Hang, WU Yuanhui, FAN Jiahui, FENG Kai. Performance Analysis and Test Verification of Porous Tilting Pad Bearings with Hermetically Sealed Squeeze Film Damper in Parallel[J]. Journal of Mechanical Engineering, 2023, 59(1): 151-161.

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并联封闭式挤压油膜阻尼器的多孔质可倾瓦轴承性能分析与试验验证

Performance Analysis and Test Verification of Porous Tilting Pad Bearings with Hermetically Sealed Squeeze Film Damper in Parallel

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