Comparative study on tribological performance of four and six recessed hybrid spherical thrust bearing operating with ER lubricant

IF 1.6 3区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Pub Date : 2024-08-08 DOI:10.1177/13506501241272868

N. Agrawal, Satish C. Sharma

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Abstract

This paper concerns with the analysis of a multi-recessed hybrid spherical thrust bearing (MHSTB) system operating with (electrorheological) ER lubrication, employing finite element method. A continuous Bingham model represents the behaviour of ER lubricant, and the equations governing the system are solved iteratively using Galerkin's discretization. The present work undertaken is aimed at studying the performance behaviour of an MHSTB system concerning various values of applied electric field and axial eccentricity ratio ([Formula: see text]). A significant change in performance is witnessed upon changing the value of the applied electric field and axial eccentricity ratio. The influence of the number of pockets (four and six pocket) in MHSTB for the identical bearing geometrical and running parameters has been studied. The numerical simulation results reveals that six pocket MHSTB system provides greater value of fluid film reaction as compared to four pocket MHSTB system. Further, the damping capability of Four pocket MHSTB configuration is better than six pocket MHSTB configuration. Moreover, the use of ER lubricant ([Formula: see text]volt) improves the value of fluid film reaction and damping coefficient for both the bearing configuration as compared to Newtonian lubrication ([Formula: see text]volt).

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使用 ER 润滑剂的四凹和六凹混合推力球面轴承摩擦学性能比较研究

本文采用有限元法分析了使用（电流变）ER 润滑的多瓣混合球面推力轴承（MHSTB）系统。一个连续的宾汉模型表示了 ER 润滑剂的行为，并使用伽勒金离散法迭代求解了支配系统的方程。目前进行的工作旨在研究 MHSTB 系统在不同的外加电场值和轴向偏心比（[公式：见正文]）下的性能表现。在改变外加电场值和轴向偏心比时，性能会发生明显变化。在轴承几何和运转参数相同的情况下，研究了 MHSTB 中袋数（四袋和六袋）的影响。数值模拟结果表明，与四袋 MHSTB 系统相比，六袋 MHSTB 系统的流体膜反作用力值更大。此外，四孔 MHSTB 配置的阻尼能力优于六孔 MHSTB 配置。此外，与牛顿润滑（[计算公式：见正文]伏特）相比，ER 润滑剂（[计算公式：见正文]伏特）的使用提高了两种轴承配置的流膜反应值和阻尼系数。

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

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 工程技术-工程：机械

CiteScore

4.20

自引率

5.00%

发文量

110

审稿时长

6.1 months

期刊介绍： The Journal of Engineering Tribology publishes high-quality, peer-reviewed papers from academia and industry worldwide on the engineering science associated with tribology and its applications. "I am proud to say that I have been part of the tribology research community for almost 20 years. That community has always seemed to me to be highly active, progressive, and closely knit. The conferences are well attended and are characterised by a warmth and friendliness that transcends national boundaries. I see Part J as being an important part of that community, giving us an outlet to publish and promote our scholarly activities. I very much look forward to my term of office as editor of your Journal. I hope you will continue to submit papers, help out with reviewing, and most importantly to read and talk about the work you will find there." Professor Rob Dwyer-Joyce, Sheffield University, UK This journal is a member of the Committee on Publication Ethics (COPE).

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