CFD analysis of load capacity of journal bearing with surface texture

Nie, Tao; Yang, Kun; Zhou, Lei; Wu, Xin; Wang, Yin

doi:10.1016/j.egyr.2022.05.073

Cited by 15 publications

(5 citation statements)

References 9 publications

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“…The application of surface texture especially dimple will effectively reduce the surface friction, that leads to reduce fuel consumption in automotive industry. Nie et al 51 studied the effect of four different texture shapes, such as triangle, arc, rectangle, and trapezoid, and typical structural parameters on the journal bearing using CFD analysis. They found that the position of the texture will affect the load capacity.…”

Section: Optimization Outcomementioning

confidence: 99%

Hydrodynamic performance study of a dimple textured surface at various area ratios and sliding speeds using CFD

Rahman

Ghani

Mahmood

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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A three dimensional computational fluid dynamic (CFD) analysis was conducted to understand the hydrodynamic performance of a dimple texture produced using recently invented low-cost dynamic-assisted tooling (DAT) in the machining process. Five different area ratios, αr of 0%, 1.63%, 3.26%, 6.53%, and 9.80%, and three different sliding speeds represented by Reynolds number, Re of 10, 45, and 80 were analyzed. From the study, there existed an optimum area ratio of 3.26%, which generated up to 290% higher load-carrying capacity compared to a fully textured surface. These findings revealed the benefits of dimple texture produced using DAT, as well as proposing the optimum area ratio needed to be considered in order to optimize the dimple performance for actual application on piston engine surfaces in the near future.

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Section: Optimization Outcomementioning

confidence: 99%

Hydrodynamic performance study of a dimple textured surface at various area ratios and sliding speeds using CFD

Rahman

Ghani

Mahmood

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Different types of micro-geometries such as grooves and dimples have been investigated. Types of shapes are circular dimples [73], spherical dimples [52,75], a combination of spherical and circular dimples [53], comparative study of triangular, rectangular, spherical, and circular [54,55,76] and grooves [41,56,74]. Table 4 summarizes the articles employing FDM considering cavitation [77,78].…”

Section: Isothermal Investigation Of Textured Bearing Performance Con...mentioning

confidence: 99%

“…Researchers have employed CFD [41,[75][76] for solving the governing equations. A summary of articles involving solutions using CFD is given in Table 6.…”

Section: Isothermal Investigation Of Textured Bearing Performance Con...mentioning

confidence: 99%

A Review of Performance of Textured Journal Bearing

Mishra,

Aggarwal

2023

Tribology Online

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Due to emerging concerns for energy-efficient and environment-friendly journal bearings, efforts are being made to improve their performance behaviours. Green tribology also aims to reduce friction and wear. In this direction, surface textures are employed on the surfaces of mating parts to minimize friction and enhance load-carrying capacity. Surface textures comprising numerous microgeometries such as dimples, grooves or pits are found to be capable of increasing bearing performance. In this article, findings of numerical and experimental investigations on the performance of textured journal bearings have been summarized. It is found that the presence of texture on the bearing surface yields lower friction and higher load-carrying capacity. This article concludes by discussing the effect of texture parameters on the performance characteristics of the journal bearing.

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“…Senatore [51] showed that the partial texturing of a bearing reduces friction losses and increases the load-carrying capacity. Nie [52] modeled an axial micro-texture on a journal bearing with four different texture shapes (triangle, arc, rectangle, and trapezoid). The results were compared with those of a non-textured surface, and the influence on the load capacity was observed; the micro-texture with a rectangular shape increased the load capacity when it was located in the convergent zone of the bearing.…”

Section: Journal Bearings With Pocketsmentioning

confidence: 99%

Fluid Film Bearings and CFD Modeling: A Review

Pérez-Vigueras,

Colín-Ocampo,

Blanco-Ortega

et al. 2023

Machines

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This paper is a review of the literature about CFD modeling and analysis of journal, thrust, and aerostatic bearings; the advantages and disadvantages of each are specified, and the bearing problems that have been analyzed are discussed to improve their designs and performance. A CFD transient analysis of journal bearings was conducted using the dynamic mesh method together with movement algorithms while keeping a structured mesh of a good quality in the ANSYS Fluent software to determine the equilibrium position of the journal and calculate the dynamic coefficients. Finally, areas of opportunity for analyzing and designing fluid film bearings to improve their performance are proposed.

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CFD analysis of load capacity of journal bearing with surface texture

Cited by 15 publications

References 9 publications

Hydrodynamic performance study of a dimple textured surface at various area ratios and sliding speeds using CFD

Hydrodynamic performance study of a dimple textured surface at various area ratios and sliding speeds using CFD

A Review of Performance of Textured Journal Bearing

Fluid Film Bearings and CFD Modeling: A Review

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