Application of artificial neural networks to diagnostics of fluid-film bearing lubrication

Kornaeva, Elena; Kornaev, Alexey; Kazakov, Yu. N.; Polyakov, Roman

doi:10.1088/1757-899x/734/1/012154

Cited by 10 publications

(3 citation statements)

References 3 publications

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“…Each failure scenario should be mathematically formalized by the steps of its occurrence in order to build a global predictive model for analyzing the health of rotor machines. To solve the problem of simultaneous processing of a large amount of data, it is necessary to use modern methods of machine learning and the use of artificial neural networks to process signals from the monitoring and forecasting systems [22].…”

Section: Discussionmentioning

confidence: 99%

Predictive analysis of rotor machines fluid-film bearings operability

Polyakov¹,

Majorov²,

Kudryavcev³

et al. 2020

Vib. proced.

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The present paper considers a multi-criteria analysis algorithm of turbo generator fluidfilm bearing operability and its connection with rotor machine monitoring system data. It is substantiated that implementation of predictive analysis of load capacity, locus curves and dynamic displacements allows prognosis of useful life of a fluid-film bearings and improvement of reliability of a rotor machine.

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Section: Discussionmentioning

confidence: 99%

Predictive analysis of rotor machines fluid-film bearings operability

Polyakov¹,

Majorov²,

Kudryavcev³

et al. 2020

Vib. proced.

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“…Основным для расчётов и дальнейшего проектирования является качество узлов трения, методология моделирования которых постоянно развивается и совершенствуется [4][5][6][7]. Также меняются в зависимости от условий работы и материалов (получение защитного антифрикционного покрытия на контактных поверхностях), параметры, оказывающие влияние на узлы трения [8][9][10][11].…”

Section: Abstract: Net Discounted Income; Antifriction Polymer Coatin...unclassified

Development of a Mathematical Model for Analyzing the Economic Effect of the Modified Design of a Radial Sliding Bearing and Its Prediction

Morozova,

Mukutadze

2023

НК

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In modern heavy-loaded friction units, various types of antifriction coatings are used on the surface of the bearing profile of the bearing sleeve to ensure high load-bearing capacity and increase the duration of the hydrodynamic regime, and consequently, the economic effect of sliding bearings. In the study, the creation and development of mathematical models of a radial sliding bearing with an antifriction polymer coating of the support surface containing a groove is carried out. The key role here is played by the method of analytical forecasting, which determines the mechanism of friction and the conditions for its transition from boundary to liquid. The aim of the study is to develop a mathematical model of a radial sliding bearing with a polymer coating of the bearing sleeve bearing surface containing an axial groove to predict the economic effect. The objective of the study is to develop new mathematical models and analyze the movement of lubricant in the working gap of a radial sliding bearing, taking into account design features to predict the economic effect. The difference from the existing models of tribosystems with antifriction coatings is the presence of a groove, which ensures stable ascent of the shaft on the hydrodynamic wedge and reduces wear during start-up and run-outs, hence increasing the service life of tribosystems. Using the lubricant motion equation and the continuity equation, new mathematical models are obtained that take into account the design features of the bearing sleeve surface – polymer coating, groove width, rheological properties of the lubricant used. Based on the results of an experimental study on the AI 5018 friction machine, the economic efficiency of net discounted income was calculated on samples in the form of partial inserts. As a result of the research, new mathematical models for engineering calculations have been developed that allow predicting the efficiency, reliability and duration of the hydrodynamic lubrication regime, as well as determining the main tribotechnical parameters. Net discounted income based on the results of theoretical and experimental research is estimated at 0.36 million rubles per year.

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“…The use of such materials considerably improves the performance of tribounits. However, existing design methods do not sufficiently take into account the specifics of low-melting metal and porous coatings, their rheological properties, as well as their universal nature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Increase of wear resistance of tribocontact with low-melting metal and porous coating

et al. 2023

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The paper is devoted to one of the most important problems of increasing wear resistance of tribosystems due to the application of low-melting metal and porous coatings on tribocontact surfaces. The asymptotic and self-similar solution for zero and first approximation was found based on the true viscous fluid flow equation for the “thin layer”, equations of continuity, an equation describing the flow of a lubricant in the body of a porous surface coating of a bearing ring; and an equation describing the profile of the molten surface contour of a bearing ring coated with a low-melting metal alloy, i.e. as a result, excluding the metal coating melt and considering the melt the velocity and pressure fields in the lubricating and porous layers are determined; as well as the load capacity and the friction coefficient, which allows determining the increase of wear resistance – increase of hydrodynamic pattern due to porous and low-melting metal coating of contact surfaces of the tribosystem.

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Application of artificial neural networks to diagnostics of fluid-film bearing lubrication

Cited by 10 publications

References 3 publications

Predictive analysis of rotor machines fluid-film bearings operability

Predictive analysis of rotor machines fluid-film bearings operability

Development of a Mathematical Model for Analyzing the Economic Effect of the Modified Design of a Radial Sliding Bearing and Its Prediction

Increase of wear resistance of tribocontact with low-melting metal and porous coating

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