铁磁流体对缸板系统的润滑影响:两种流动模型的比较研究

IF 1.8 4区 工程技术 Q3 ENGINEERING, CHEMICAL
Rajesh C. Shah
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引用次数: 0

摘要

分析了长圆柱和无限平板系统之间的挤压油膜特性。采用横向均匀强磁场控制的铁磁流体(FF)润滑剂,减少了系统的磨损,延长了系统的使用寿命。使用两种不同的FF流动模型(Shymois和Jenkins)和连续性方程导出了修正的组合雷诺方程。推导并数值计算了不同控制参数下无量纲薄膜压力、承载能力和挤压时间的表达式。结果表明,当选择较小的最小膜厚度值时,系统的性能显著提高。此外,通过适当选择参数,这两个模型可以同等地模拟这种现象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lubrication impact of ferrofluid on cylinder-plate system: A comparative study using two flow models

Squeeze-film characteristics between a long cylinder and an infinite flat plate system are analysed. Ferrofluid (FF) lubricant controlled by transverse uniformly strong magnetic field is used for reducing wear and prolonging life of the system. The modified combined Reynolds equation is derived using two different FF flow models (Shliomis and Jenkins), and continuity equation. The expression for dimensionless film-pressure, load-carrying capacity and squeeze time are derived and calculated numerically for different control parameters. The results show significant improvement in the performance of the system when smaller value of minimum film thickness is chosen. Moreover, the phenomenon can be simulated by both the models equally with proper choice of the parameters.

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来源期刊
Lubrication Science
Lubrication Science ENGINEERING, CHEMICAL-ENGINEERING, MECHANICAL
CiteScore
3.60
自引率
10.50%
发文量
61
审稿时长
6.8 months
期刊介绍: Lubrication Science is devoted to high-quality research which notably advances fundamental and applied aspects of the science and technology related to lubrication. It publishes research articles, short communications and reviews which demonstrate novelty and cutting edge science in the field, aiming to become a key specialised venue for communicating advances in lubrication research and development. Lubrication is a diverse discipline ranging from lubrication concepts in industrial and automotive engineering, solid-state and gas lubrication, micro & nanolubrication phenomena, to lubrication in biological systems. To investigate these areas the scope of the journal encourages fundamental and application-based studies on: Synthesis, chemistry and the broader development of high-performing and environmentally adapted lubricants and additives. State of the art analytical tools and characterisation of lubricants, lubricated surfaces and interfaces. Solid lubricants, self-lubricating coatings and composites, lubricating nanoparticles. Gas lubrication. Extreme-conditions lubrication. Green-lubrication technology and lubricants. Tribochemistry and tribocorrosion of environment- and lubricant-interface interactions. Modelling of lubrication mechanisms and interface phenomena on different scales: from atomic and molecular to mezzo and structural. Modelling hydrodynamic and thin film lubrication. All lubrication related aspects of nanotribology. Surface-lubricant interface interactions and phenomena: wetting, adhesion and adsorption. Bio-lubrication, bio-lubricants and lubricated biological systems. Other novel and cutting-edge aspects of lubrication in all lubrication regimes.
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