Page 137 - 摩擦学学报2025年第10期

第 45 卷 第 10 期 摩擦学学报（中英文） Vol 45 No 10
2025 年 10 月 Tribology Oct, 2025

DOI: 10.16078/j.tribology.2024137 CSTR: 32261.14.j.tribology.2024137
孙逸豪, 韩睿垚, 金齐, 解忠良. 空气吸入对挤压油膜阻尼器油膜动特性影响研究[J]. 摩擦学学报（中英文）, 2025, 45(10):
1534−1548. SUN Yihao, HAN Ruiyao, JIN Qi, XIE Zhongliang. The Effect of Air Ingestion on the Dynamic Characteristics of
SFD Oil Film[J]. Tribology, 2025, 45(10): 1534−1548.

空气吸入对挤压油膜阻尼器油膜动

特性影响研究

1
1
1
孙逸豪 , 韩睿垚 , 金 齐 , 解忠良 1,2*
(1. 西北工业大学 工程力学系，陕西 西安 710072；
2. 西北工业大学 深圳研究院，广东 深圳 518063)
摘 要: 针对空气吸入对挤压油膜阻尼器(Squeeze Film Damper, SFD)油膜动特性影响规律不清晰问题开展研究. 建
立了挤压油膜阻尼器流体域模型，考虑是否存在空气吸入2种情形，分析了空气吸入在不同结构和工况等参数下对
油膜动特性影响规律，揭示了其对油膜动特性影响机理. 结果表明：空气吸入现象发生在出口边界，流体动压润滑
效应增大，空气吸入程度加重，且沿周向分布变得均匀，对空化效应抑制效果加强. 空气吸入使得油膜有效覆盖面
积减小，气穴比增大，流体黏度显著降低，动压润滑效应减小，且对油膜动特性影响相对于空化效应更为显著. 空气
吸入对SFD油膜动特性产生明显抑制作用，具体表现为阻尼和刚度的整体稳定性提高，具体数值明显减小，非线性
特征得到缓解. 空气吸入时，增大长径比和供油压力，减小进动频率可有效提高油膜阻尼和刚度，而改变静偏心率、
进动半径、间隙比和滑油黏度，对油膜动特性影响较小. 研究成果可为后续无端封SFD油膜动特性的深入研究和优
化设计提供理论依据和重要参考.
关键词: 挤压油膜阻尼器; 动力学特性; 等效阻尼; 平均刚度; 空化效应
中图分类号: TH117.2;V232 文献标志码: A 文章编号: 1004-0595(2025)10–1534–15

The Effect of Air Ingestion on the Dynamic
Characteristics of SFD Oil Film

1 1 1 1,2*
SUN Yihao , HAN Ruiyao , JIN Qi , XIE Zhongliang

(1. Department of Engineering Mechanics, Northwestern Polytechnical University, Shaanxi Xi’an 710072, China;
2. Research & Development Institute of Northwestern Polytechnical University in Shenzhen,
Guangdong Shenzhen 518063, China)
Abstract: The effect of air ingestion on the dynamic characteristics of oil film of Squeeze Film Damper (SFD) is crucial
important to improve the vibration and noise reduction performance of aero-engines. In order to solve the problem of
unclear influence of air ingestion on the dynamic characteristics of oil film of Squeeze Film Damper, a study was carried
out. Modeling the fluid domain of squeeze film damper. The presence or absence of air ingestion was considered in two
cases. The influence of air ingestion on the dynamic characteristics of the oil film was analyzed under different structural

Received 1 July 2024, revised 8 October 2024, accepted 8 October 2024, available online 25 February 2025.
*Corresponding author. E-mail: zlxie@nwpu.edu.cn, Tel: +86-18192568328.
This project was supported by the National Natural Science Foundation of China (52475214, 52105205), Shenzhen Science and
Technology Program (JCYJ20240813150731040), Guangdong Basic and Applied Basic Research Foundation (2024A1515010406,
2022A1515010864) and the 2021 Joint Projects between Chinese and CEECs' Universities (2023275, 2021101).
国家自然科学基金项目(52475214, 52105205)、深圳市科技计划资助(JCYJ20240813150731040)、广东省基础与应用基础研究
基金项目(2024A1515010406, 2022A1515010864)和中国-中东欧国家高校联合教育项目(2023275, 2021101)资助.