In Situ Visualization and Analysis of Oil Starvation in Ball Bearing Cages

IF 2 3区工程技术 Q2 ENGINEERING, MECHANICAL

Tribology Transactions Pub Date : 2023-08-30 DOI:10.1080/10402004.2023.2253867

Ujjawal Arya, F. Sadeghi, Saeed Aamer, A. Meinel, H. Grillenberger

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Abstract

Abstract This article presents an investigation into oil starvation in different cage pocket shapes of a horizontally mounted ball bearing. A counter-rotating angular contact ball bearing test rig (CRACTR) was used to visualize the oil distribution inside specially manufactured transparent bearing cages using detailed images from a high-speed camera. Three different cage types were investigated using various oils dyed with ultraviolet dye. The identification of oil and air regions elucidated the oil distribution in the cage pocket and the formation of oil–air striations on the ball surface under various operating conditions. The experimental results demonstrated that raceway motion, ball submersion level, oil properties, and cage pocket shape influenced oil starvation inside the bearing cage. ANSYS Fluent software was also used to develop an equivalent two-phase computational fluid dynamics (CFD) model for the test bearing. Results from the CFD model corroborate well with the experimentally observed oil distribution for all test cages and establish the strong influence of cage geometry on oil starvation and bearing lubrication. GRAPHICAL ABSTRACT

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滚珠轴承保持架油饥饿的现场可视化与分析

摘要本文对水平安装滚珠轴承不同保持架槽形的缺油现象进行了研究。使用反向旋转角接触球轴承试验台（CRACTR），利用高速摄像机的详细图像，对专门制造的透明轴承保持架内的油分布进行可视化。使用紫外线染料染色的各种油对三种不同的笼型进行了研究。油气区的识别阐明了在各种操作条件下保持架袋中的油分布以及球表面油气条纹的形成。实验结果表明，滚道运动、球的浸入水平、油的性质和保持架袋的形状会影响轴承保持架内的缺油。ANSYS Fluent软件还用于开发试验轴承的等效两相计算流体动力学（CFD）模型。CFD模型的结果与实验观察到的所有试验保持架的油分布相吻合，并确定了保持架几何形状对缺油和轴承润滑的强烈影响。图形摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tribology Transactions 工程技术-工程：机械

CiteScore

3.90

自引率

4.80%

发文量

审稿时长

4 months

期刊介绍： Tribology Transactions contains experimental and theoretical papers on friction, wear, lubricants, lubrication, materials, machines and moving components, from the macro- to the nano-scale. The papers will be of interest to academic, industrial and government researchers and technologists working in many fields, including: Aerospace, Agriculture & Forest, Appliances, Automotive, Bearings, Biomedical Devices, Condition Monitoring, Engines, Gears, Industrial Engineering, Lubricants, Lubricant Additives, Magnetic Data Storage, Manufacturing, Marine, Materials, MEMs and NEMs, Mining, Power Generation, Metalworking Fluids, Seals, Surface Engineering and Testing and Analysis. All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief and, if found suitable for further consideration, are submitted for peer review by independent, anonymous expert referees. All peer review in single blind and submission is online via ScholarOne Manuscripts.