Analysis of the performance of worn hydrodynamic water-lubricated plain journal bearings considering cavitation and elastic deformation

Wang, Yanzhen; Zhang, Yin; Gao, Gengyuan; Zhang, Xiuli

doi:10.1051/meca/2017030

Cited by 18 publications

(10 citation statements)

References 26 publications

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“…The boundary conditions of the oil film were shown in Figure 2 (b), where the two end faces were pressure inlet and outlet and the pressure at the inlet and outlet boundaries was set as the atmospheric pressure. The inner and outer surfaces of oil film were modeled as "moving wall" and "stationary wall," respectively (Wang et al, 2017). The mesh numbers were about 720,000 in calculations.…”

Section: Numerical Analysismentioning

confidence: 99%

A study on the wear behavior of tin-based journal bearing under different working conditions

Zhang

Wang

2019

ILT

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Purpose The purpose of this paper is to study the friction and wear properties of journal bearings under different working conditions. Design/methodology/approach Friction coefficient and wear losses of journal bearing under different working conditions have been determined by a bearing test rig. The worn surfaces of bearing were examined by scanning electron microscopy and laser three-dimensional micro-imaging profile measurements, and the tribological behavior and wear mechanisms were investigated. Findings The wear loss and friction coefficient of bearing under starting-stopping working condition is far greater than that of steady-state working conditions. In addition, the maximum wear loss under start-up and stop conditions is about 120 times of that under stable operating conditions. Under stable working conditions, the main wear forms of bearings are abrasive wear, under starting-stopping working conditions the main wear mechanisms of bearings are adhesion wear, abrasive wear and fatigue wear. Originality/value These research results have certain practical value for understanding the tribology behavior of journal bearings under different working conditions.

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Section: Numerical Analysismentioning

confidence: 99%

A study on the wear behavior of tin-based journal bearing under different working conditions

Zhang

Wang

2019

ILT

Self Cite

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“…Later, Wodtke et al [10] showed that the FSI technique generates better agreement with the measurement results in comparison with the non-FSI method. Interesting works focusing on whether the mechanical deformation effect should be implemented for the analysis of water-lubricated composite and plastic journal bearing have been presented by Wang et al [11,12]. They developed a guide to determine journal bearings geometries for several operating conditions considering the deformation effect and cavitation.…”

Section: Introductionmentioning

confidence: 99%

Elastohydrodynamic behavior analysis on water-lubricated journal bearing: a study of acoustic and tribological performance based on CFD-FSI approach

Tauviqirrahman

Jamari

Bagir

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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Most of the studies with respect to the use of water-lubricated journal bearing are mainly concerned with tribological performance, whereas few studies explore the noise characteristics of such bearing. In this study, the tribological and acoustic behavior of water-lubricated journal bearing is studied using a rigorous program containing combined CFD and two-way FSI procedures for simulating elastohydrodynamic simulation for a range of different bearing materials. To model cavitation in the bearing, the multiphase flow mixture model is employed, while acoustical properties are investigated through broadband noise source models. The numerical results demonstrate that the bearing deformation has a great effect on the tribological characteristics of water-lubricated journal bearing, and this effect cannot be ignored, especially in the case of bearing material with a low elasticity modulus. The results also indicate that the bearing noise is weakly sensitive to the bearing material employed. Furthermore, the effect of operating conditions such as rotational speed and eccentricity ratio on the acoustic and tribological indices are also discussed in detail.

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“…The study showed that after one turn on and off of an ignition switch, the accumulated wear volume will increase with the increasing surface roughness. Based on computational fluid dynamics (CFD) and fluid-structure interaction (FSI) method, Wang et al [8] investigated the performance of worn water-lubricated plain journal bearings with the effects of elastic deformation and cavitation, and the results of the CFD and FSI method were verified by the experimental ones. The results showed that, for the worn water-lubricated plain journal bearings under the same Sommerfeld number, the maximum film pressure and maximum bearing deformation increase with the increasing of wear depth, and by contrast, the friction coefficient decreases with the increasing of wear depth.…”

Section: Introductionmentioning

confidence: 99%

Effects of bushing profiles on the elastohydrodynamic lubrication performance of the journal bearing under steady operating conditions

Liu¹,

Zhao²,

Li³

et al. 2019

Mechanics & Industry

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The bushing profiles have important effects on the performance of journal bearing. In this article, the effects of plain profile, double conical profile, and double parabolic profile on the elastohydrodynamic lubrication of the journal bearing under steady operating conditions are investigated. The journal misalignment and asperity contact between journal and bushing surface are considered, while the modification of the bushing profiles due to running-in is neglected. Finite element method is used for the elastic deformation of bushing surface, while the numerical solution is established by using finite difference method and overrelaxation iterative method. The numerical results reveal that the double parabolic profile with appropriate size can significantly increase the minimum film thickness and reduce the asperity contact pressure and friction, while the maximum film pressure, load-carrying capacity, and leakage flow rate change slightly under steady operating conditions. This study may help to reduce the edge wear and prolong the service life of the journal bearing.

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Analysis of the performance of worn hydrodynamic water-lubricated plain journal bearings considering cavitation and elastic deformation

Cited by 18 publications

References 26 publications

A study on the wear behavior of tin-based journal bearing under different working conditions

A study on the wear behavior of tin-based journal bearing under different working conditions

Elastohydrodynamic behavior analysis on water-lubricated journal bearing: a study of acoustic and tribological performance based on CFD-FSI approach

Effects of bushing profiles on the elastohydrodynamic lubrication performance of the journal bearing under steady operating conditions

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