Computer-vision-based research on friction vibration and coupling of frictional and torsional vibrations in water-lubricated bearing-shaft system

Kuang, Fuming; Zhou, Xincong; Liu, Zhenglin; Huang, Jian; Liu, Xue‐Shen; Qian, Kangwei; Gryllias, Konstantinos

doi:10.1016/j.triboint.2020.106336

Cited by 36 publications

(11 citation statements)

References 30 publications

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“…Gabelli et al (2008) evaluated the life of rolling bearings by calculating the rolling EHL contact stress. More recently, some scholars pay more attention to the coupling behavior of tribology and dynamics of bearings (Kuang et al, 2020;Li et al, 2020;Liu et al, 2021;Meng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the interface topography evolution and vibration monitoring in thrust ball bearings induced by particulate contamination

Wang

Zhang

Liao

et al. 2023

JAMDSM

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Rolling bearings operating in harsh environments are extremely exposed to the risk of exogenous dust or wear debris particles, so there is a strong need to investigate the effects of particulate contamination on bearing operation and to identify problems early. The lubricated oil containing silica particles of various sizes and concentrations are prepared and introduced into thrust ball bearings to replicate the severe operating conditions. Vibration and acoustic emission (AE) signals were measured by accelerometer and AE sensor in a thrust ball bearing test rig. The experimental bearing raceway was observed by scanning electron microscope (SEM) and confocal laser scanning microscopy, and the evolution of the surface topography was analyzed to probe the wear mechanism. The results show that the most severe wear areas occur at the bottom of the bearing raceway, and its degree of wear is significantly influenced by the size and concentration of the silica particles. As the experimental time increases, the raceway surface undergoes an accelerated wear process originating from slight dimples, which leads to bearing failure. Furthermore, the introduction of particles into the lubricant increases surface root mean square (RMS) roughness, vibration and acoustic emission for different experimental durations. The vibration and AE signals are affected by a combination of solid particles and surface wear. The measured monitoring results can provide valuable information about the damage morphologies and subsequently about the state of the bearing during operation.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the interface topography evolution and vibration monitoring in thrust ball bearings induced by particulate contamination

Wang

Zhang

Liao

et al. 2023

JAMDSM

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“…Scholars mainly use experimental methods [12,13] and numerical methods [3,[14][15][16] to study it. Fuming Kuang and Xincong Zhou [17,18] use a glass shaft to form a friction pair with a rubber block. To explore the frictional vibration mechanism and process of coupling with torsional vibration, a high-speed camera records the responses of the rubber seal, fixer, and shaft simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Stick-slip vibration in water-lubricated bearing-shaft system simulated in persistent homology-based machine learning model

Zhang¹,

Yang²,

Jin³

2021

J. vibroeng.

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Stick-slip vibration images of water-lubricated rubber stern bearing are collected by using machine vision technology. Then these images are analyzed by the methods of persistent homology-based machine learning (PHML). During this analysis, the corresponding barcode is obtained by calculating the homology of the simplicial complex of the vibration images, and the topological characteristics of the vibration images are obtained based on the barcode images, then the support vector machine (SVM) learning is used to study the topological features, and finally the classification and identification of the stick-slip vibration of water-lubricated rubber stern tube bearing are completed. The results have shown that the length of the longest 1D Betti number is closely related to vibration value. Based on these data, it is possible to use the warning beep effectively, create an intelligent description of the beep process, and provide a new idea for simulating stick-slip vibration in the stern bearing.

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“…Because of the geometry employed in the drive-line of a propeller-driven ship, the drive shaft can exhibit considerable vibration, and also mis-alignment can be a problem in some circumstances. As a consequence, there has been a considerable amount of research looking at the vibration characteristics of rubber or composite stern-tube bearings [12][13][14][15][16][17][18][19][20] along with the effects of misalignment [21].…”

Section: Introductionmentioning

confidence: 99%

On the Design and Lubrication of Water-Lubricated, Rubber, Cutlass Bearings Operating in the Soft EHL Regime

Smith

2020

Lubricants

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All propeller-driven ships employ a drive shaft supported by journal bearings. To avoid water pollution, these bearings are generally lubricated by the surrounding water, removing the need for a rear seal. Such bearings, commonly referred to as Cutlass bearings, usually have an inner grooved nitrile rubber lining. The grooves (called flutes) allow debris to be flushed out and the bearing surface to be cooled. The remaining area is divided into a number of load-carrying areas called staves. At present, no rigorous design guide exists for these bearings. This paper presents a methodology to predict the minimum film thickness between the journal and the most heavily-loaded stave, an approach not hitherto reported in the literature. The method includes a new, 3D, finite element (FE) approach for soft elasto-hydrodynamic (EHL) predictive modelling of generated pressures in cutlass bearings. Model predictions compare favourably with experimental data. It is shown that the modulus of elasticity of the rubber has no influence on the minimum film thickness. An equation relating dimensionless film thickness to dimensionless load, clearance ratio and numbers of staves is presented. For a nominally circular bearing, increasing the clearance ratio or increasing the numbers of staves reduces load-carrying capacity. It is shown that distortion due to loading can increase load-carrying capacity.

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Computer-vision-based research on friction vibration and coupling of frictional and torsional vibrations in water-lubricated bearing-shaft system

Cited by 36 publications

References 30 publications

Experimental study on the interface topography evolution and vibration monitoring in thrust ball bearings induced by particulate contamination

Experimental study on the interface topography evolution and vibration monitoring in thrust ball bearings induced by particulate contamination

Stick-slip vibration in water-lubricated bearing-shaft system simulated in persistent homology-based machine learning model

On the Design and Lubrication of Water-Lubricated, Rubber, Cutlass Bearings Operating in the Soft EHL Regime

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