水润滑夹心轴承流-固耦合动力学特性研究

doi:10.3901/JME.2023.03.086

机械工程学报 ›› 2023, Vol. 59 ›› Issue (3): 86-97.doi: 10.3901/JME.2023.03.086

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水润滑夹心轴承流-固耦合动力学特性研究

解忠良¹, 焦见², 杨康²

1. 西北工业大学工程力学系西安 710072
2. 西安电子科技大学机电工程学院西安 710071

收稿日期:2022-03-13 修回日期:2022-08-18 出版日期:2023-02-05 发布日期:2023-04-23
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)、中国-中东欧国家高校联合教育(2021101)、陕西省自然科学基础研究计划(2022JM-003)、广东省自然科学基金(2022A1515010864)和中央高校基本科研业务费专项资金(D5000220095)资助项目。

Investigation on the Fluid-structure Interaction Dynamic Behaviors of Water Lubricated Sandwich Bearing

XIE Zhongliang¹, JIAO Jian², YANG Kang²

1. Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072;
2. School of Mechanical-Electric Engineering, Xidian University, Xi'an 710071

Received:2022-03-13 Revised:2022-08-18 Online:2023-02-05 Published:2023-04-23

摘要/Abstract

摘要： 针对水润滑单衬层轴承存在的低载高阻、高振高噪等缺点,创新性地提出一种双衬层轴承结构,有望实现轴承高载低阻、减振降噪性能新突破。关于水润滑夹心衬层轴承,采用流-固耦合分析方法对其开展研究。建立流-固耦合动力学模型,研究了偏心、衬层厚度等对润滑界面压力、承载、变形、应力等性能参数的影响规律,揭示了衬层厚度等对润滑性能的影响机理。研究结果表明,衬层静态结构参数与偏心率、转速和衬层厚度呈正相关关系,而与厚度比呈负相关关系;存在最佳衬层厚度范围使得摩擦因数最小化;偏心越大,水膜破裂的可能性增加。最终,研究结果为水润滑夹心衬层轴承的设计研发提供了理论基础并推动了该类轴承国产化进程。

关键词: 夹心轴承, 水润滑, 流-固耦合, 润滑性能

Abstract: For the disadvantages of water-lubricated single liner bearings, such as low-load, high-resistance, high-vibration and high-noise, a double liner structure is proposed, which is expected to achieve a new breakthrough in the high-load, low-resistance, vibration attenuation and noise reduction. The fluid-structure interaction method is employed to study the water-lubricated bearings. The fluid-structure interaction bearing model is established. The influences of the eccentricity ratios and liner thickness on the pressure, load-carrying capacity, deformation and stress are explored. The influence mechanisms of the liner thickness on the lubrication performances are revealed. It is shown that the static structural parameters are positively correlated with the eccentricity ratios, speeds and liner thickness, but negatively correlated with the liner thickness ratio. There is an optimal range for the eccentricity ratios to minimize the coefficient of friction. In addition, when the eccentricity ratios are large, the possibility of rupture for the water film increases. Finally, the results provide a theoretical basis for the design and development of such bearings, and promote the localization process.

Key words: sandwich bearing, water lubrication, fluid-structure interaction, lubrication performance

中图分类号:

TH133

解忠良, 焦见, 杨康. 水润滑夹心轴承流-固耦合动力学特性研究[J]. 机械工程学报, 2023, 59(3): 86-97.

XIE Zhongliang, JIAO Jian, YANG Kang. Investigation on the Fluid-structure Interaction Dynamic Behaviors of Water Lubricated Sandwich Bearing[J]. Journal of Mechanical Engineering, 2023, 59(3): 86-97.

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水润滑夹心轴承流-固耦合动力学特性研究

Investigation on the Fluid-structure Interaction Dynamic Behaviors of Water Lubricated Sandwich Bearing

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