典型工况下航空发动机主轴轴承流动特征研究

doi:10.3901/JME.2025.11.326

机械工程学报 ›› 2025, Vol. 61 ›› Issue (11): 326-335.doi: 10.3901/JME.2025.11.326

• 数字化设计与制造 • 上一篇

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典型工况下航空发动机主轴轴承流动特征研究

解忠良^1,2, 张昊¹, 李泽朝³, 高文君⁴, 张浩³, 翁继东⁵

1. 西北工业大学工程力学系西安 710072;
2. 西北工业大学深圳研究院深圳 518063;
3. 河北工业大学机械工程学院天津 300401;
4. 西北工业大学动力与能源学院西安 710072;
5. 中国工程物理研究院流体物理研究所绵阳 621900

收稿日期:2024-06-07 修回日期:2024-12-26 发布日期:2025-07-12
作者简介:解忠良，男，1988年出生，博士，教授。主要研究方向为水润滑轴承润滑机理。E-mail：zlxie@nwpu.edu.cn
基金资助:
国家自然科学基金(52105205,U2241276)、两机基础科学中心(2022-B-Ⅲ-003)和广东省基础与应用基础研究基金(2024A1515010406，2022A1515010864)资助项目。

Investigation on the Fluid Dynamics in Spindle Bearings under Typical Operating Conditions

XIE Zhongliang^1,2, ZHANG Hao¹, LI Zezhao³, GAO Wenjun⁴, ZHANG Hao³, WENG Jidong⁵

1. Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072;
2. Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063;
3. School of Mechanical Engineering, Hebei University of Technology Tianjin 300401;
4. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;
5. Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900

Received:2024-06-07 Revised:2024-12-26 Published:2025-07-12

摘要/Abstract

摘要： 针对航空发动机主轴轴承内部流场特征不明确的问题开展了研究，构建了主轴轴承在典型单元间隙最小平面域流体动力学模型。研究了润滑性能与参数(如游隙、油气比例、转速、保持架孔径)之间的规律，探明了轴承结构参数对润滑效果的影响关系，揭示了主轴轴承油气分布特征的影响机制，发展了一种主轴轴承流场特征分析有效方法。结果表明油相比例越高，游隙越小，轴承腔内的压力峰值越大；轴承腔单元区域内最大流速主要受流速的影响，并与流速正相关。研究结果对于主轴轴承结构优化设计具有重要意义。

关键词: 主轴轴承, 油气两相流, 轴承腔, 游隙

Abstract: A research is conducted to address the issue of unclear internal flow characteristics of the main spindle bearing in aircraft engines. A fluid dynamics model for the main spindle bearing in the typical minimum plane domain of the unit clearance is built. The study investigates the relationship between lubrication performance parameters (such as clearance, oil air ratio, speeds, and cage aperture). The influence of bearing structural parameters on lubrication effectiveness is determined, and the impact mechanism of oil-air distribution characteristics in the main spindle bearing is revealed. An effective method for analyzing the flow characteristics of the main spindle bearing is developed. The results show that a higher oil phase ratio and smaller clearance result in higher pressure peaks in the bearing chamber. The maximum flow velocity in the unit area of the bearing chamber is mainly influenced by the flow velocity and positively correlated with it. The research findings are of great significance for the optimization design of the main spindle bearing structure.

Key words: spindle bearing, oil-air two-phase flow, bearings chamber, clearance

中图分类号:

TH133

解忠良, 张昊, 李泽朝, 高文君, 张浩, 翁继东. 典型工况下航空发动机主轴轴承流动特征研究[J]. 机械工程学报, 2025, 61(11): 326-335.

XIE Zhongliang, ZHANG Hao, LI Zezhao, GAO Wenjun, ZHANG Hao, WENG Jidong. Investigation on the Fluid Dynamics in Spindle Bearings under Typical Operating Conditions[J]. Journal of Mechanical Engineering, 2025, 61(11): 326-335.

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典型工况下航空发动机主轴轴承流动特征研究

Investigation on the Fluid Dynamics in Spindle Bearings under Typical Operating Conditions

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