带O型圈的闭式挤压油膜阻尼器动力特性分析

doi:10.3901/JME.2025.08.352

机械工程学报 ›› 2025, Vol. 61 ›› Issue (8): 352-361.doi: 10.3901/JME.2025.08.352

• 交叉与前沿 • 上一篇

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带O型圈的闭式挤压油膜阻尼器动力特性分析

周海仑^1,2, 仓阳光¹, 张钰奇¹, 曹刚毅¹

1. 沈阳航空航天大学航空发动机学院沈阳 110136;
2. 辽宁省航空推进系统先进测试技术重点实验室沈阳 110136

收稿日期:2024-03-27 修回日期:2024-11-17 发布日期:2025-05-10
作者简介:周海仑(通信作者)，男，1983年出生，博士，教授，博士研究生导师。主要研究方向为挤压油膜阻尼器、转子动力学和航空发动机整机振动。E-mail：hlzhou@sau.edu.cn
基金资助:
国家自然科学基金(52175106)、辽宁省兴辽英才计划(XLYC2203146)和沈阳市中青年科技创新人才支持计划(RC220326)资助项目。

Dynamic Characteristics Analysis of the Sealed Ends Squeeze Film Damper with O-ring

ZHOU Hailun^1,2, CANG Yangguang¹, ZHANG Yuqi¹, CAO Gangyi¹

1. School of Aero-engine, Shenyang Aerospace University, Shenyang 110136;
2. Liaoning Key Laboratory of Advanced Measurement and Test Technology for Aircraft Propulsion System, Shenyang 110136

Received:2024-03-27 Revised:2024-11-17 Published:2025-05-10

摘要/Abstract

摘要： 为了研究带O型圈的闭式挤压油膜阻尼器在惯性力作用下的动态特性，在长轴承近似和半油膜假设下，采用能量近似法推导了考虑油膜惯性力时闭式挤压油膜阻尼器的动力特性系数。建立闭式挤压油膜阻尼器三维流体计算动力学模型，基于瞬态时间步长求解方法和动态网格技术进行了数值模拟。通过理论计算和数值模拟分析涡动频率对刚度和阻尼的影响，理论和仿真结果很好地吻合。另一方面，基于带有O型圈的闭式挤压油膜阻尼器双向激励试验对考虑两相流效应数值模拟进行试验验证，表明流体惯性和阻尼随着频率的增加而增加。以上研究为带O型圈的闭式挤压油膜阻尼器的设计和应用提供参考。

关键词: 挤压油膜阻尼器, O型圈, 油膜惯性, 动力特性, 两相流

Abstract: In order to study the dynamic characteristics of sealed ends squeeze film damper(SFD) with O-ring under the influence of inertial force, the dynamic characteristic coefficients of sealed ends SFD are derived from energy approximation method under long bearing approximation(LBA) and semi-oil film assumptions. A three-dimensional computational fluid dynamics model of sealed ends SFD is established, and numerical simulation is carried out based on the transient time step solution method and dynamic grid technology. Both theoretical calculation and numerical simulation are conducted to analyze the effects of whirling frequency on the stiffness and damping. The theoretical and simulation results correspond with each other precisely. Besides，the numerical simulation considering two-phase flow effect which shows that the fluid inertia and damping increase with frequency is verified by the experiment based on the two-way excitation test of the sealed ends SFD with O-ring. This study will provide a reference for the design and application of sealed ends SFD with O-ring.

Key words: squeeze film damper, O-ring, fluid inertia, dynamic characteristics, two phase flow

中图分类号:

TG156

周海仑, 仓阳光, 张钰奇, 曹刚毅. 带O型圈的闭式挤压油膜阻尼器动力特性分析[J]. 机械工程学报, 2025, 61(8): 352-361.

ZHOU Hailun, CANG Yangguang, ZHANG Yuqi, CAO Gangyi. Dynamic Characteristics Analysis of the Sealed Ends Squeeze Film Damper with O-ring[J]. Journal of Mechanical Engineering, 2025, 61(8): 352-361.

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带O型圈的闭式挤压油膜阻尼器动力特性分析

Dynamic Characteristics Analysis of the Sealed Ends Squeeze Film Damper with O-ring

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