The effect solid particle lubricant contamination on the dynamic behavior of compliant journal bearings

Boucherit, Hamid; Bou‐Saïd, Benyebka; Lahmar, Mustapha

doi:10.1002/ls.1378

Cited by 11 publications

(4 citation statements)

References 19 publications

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“…Solid particles of various sizes and shapes are inducted into lubricant as a) debris during maintenance, b) dust or soot from the environment, and c) metal particles due to wear mechanism. Solid particle contamination in a journal bearing has been investigated by Boucherit et al [13]. It is understood from their study that solid particle contamination has a substantial impact on friction, surface deformation, and flow rate of the lubricant.…”

Section: Literature Reviewmentioning

confidence: 99%

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Establishing Statistical Correlation Between Sensor Signature Features and Lubricant Solid Particle Contamination in a Spur Gearbox

Rameshkumar

Saimurugan

et al. 2022

IEEE Access

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This paper aims to predict the severity of solid particle contaminants present in the lubricant in a Spur Gearbox using Vibration, Acoustic Emission, and Sound Signature features. Sensor signatures are acquired at various contaminant conditions of lubricant with different speed and load conditions. Statistical Features are extracted in the time domain, and feature ranking is carried out using the analysis of variance approach. Statistical models are developed using the selected features of Sound, Acoustic Emission, and Vibration separately and fusing the features in the feature level. Decision Trees and Support Vector Machine algorithms are used in this study to build statistical models. AE features have a good correlation with lubricant conditions compared to sound and vibration features. The feature-level fusion approach predicts the lubricant conditions with an accuracy of more than 99%. The feature-level fusion models built using dominant features are computationally efficient without compromising the prediction ability.

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Section: Literature Reviewmentioning

confidence: 99%

“…The size of the SiC particles considered in this study is 10 microns. The particle size considered in this study is based on the investigation made by Boucherit et al [13]. It was found that the particle average size of 75 microns influences the wear over the gear tooth surface.…”

Section: Lubricant Conditionsmentioning

confidence: 99%

Establishing Statistical Correlation Between Sensor Signature Features and Lubricant Solid Particle Contamination in a Spur Gearbox

Rameshkumar

Saimurugan

et al. 2022

IEEE Access

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“…In recent years, some studies have pointed out that particles significantly affect the friction properties of the three-body contact interface, especially in high-speed and precision machinery. Studies in this field are mainly on the effects of properties of solid particles on the rheology of lubricants, 4,5 three-body microcontact modeling, 6,7 effects of solid particle and rheological properties on bearing static and dynamic characteristics, 8,9 _ENREF_8 and experimental studies on solid particles. 10,11 Mixed EHL is a typical characteristic of lubricated machine elements in nonconformal contacts.…”

Section: Introductionmentioning

confidence: 99%

A solution for mixed elastohydrodynamic lubrication modeling considering effects of solid particles and surface roughness

Wang

Zhang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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To investigate the effects of solid particles on the point contact mixed lubrication, this paper aims to introduce solid particles into rough interfaces under mixed hydrodynamic lubrication. Statistical three-body micro-contact is utilized in modeling mixed EHL. The model is verified by comparing results without considering particles and roughness with those from classical EHL formula. Factors, such as particle physical parameters, surface roughness and operating condition acting on the system are discussed. The results show that the distribution of hydrodynamic pressure and oil film thickness on the point contact with particles still show typical characteristics of elastohydrodynamic lubrication. The physical parameters of particles and operating condition change the proportion of each part to the load carrying capacity, where an increase in particle size, concentration and surface orientation parameters increases the load ratio of particle and conversely an increase in surface roughness and sliding velocity decreases it. Both an increase in particle size and surface roughness result in an increase in the minimum oil film thickness, with the effect of surface roughness being more significant. In addition, the shear strength, size and concentration of the particles play an important role in the friction characteristics.

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“…Usually the Reynolds equation is discretized by finite difference method and solved by Iterative solution method. In actual calculation, due to the nonlinear nature of the equation, the calculation results may not stable enough, and even not converge [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Numerical calculation of oil film for ship stern bearing based on matrix method

et al. 2019

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Radial sliding bearings are widely used in ship shafting, its characteristics of lubricating oil film have important influence on the normal operation of the whole shaft system. In this work, the difference equations which is used to calculate the radial sliding bearing oil film features is transformed into matrix equations, the solving process be converted into solving matrix equation, combined with the powerful matrix calculation function of MATLAB, the solution process is simplified. It is not necessary to set the error precision and relaxation factor, so as to avoid the problem that the calculation result is not stable or even not convergent in the process of Successive Over Relaxation(SOR) method, and the calculation precision and stability are improved. The numerical results of matrix calculation method is compared with the result of SOR method, verified the correctness and feasibility of the matrix calculation method. Because the calculation is relatively stable, the matrix calculation method is more suitable for the calculation core of the relative computing software.

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The effect solid particle lubricant contamination on the dynamic behavior of compliant journal bearings

Cited by 11 publications

References 19 publications

Establishing Statistical Correlation Between Sensor Signature Features and Lubricant Solid Particle Contamination in a Spur Gearbox

Establishing Statistical Correlation Between Sensor Signature Features and Lubricant Solid Particle Contamination in a Spur Gearbox

A solution for mixed elastohydrodynamic lubrication modeling considering effects of solid particles and surface roughness

Numerical calculation of oil film for ship stern bearing based on matrix method

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