Hydrodynamic Model of a Wedge-Shaped Sliding Support with an Easy-Melting Metal Coating

Мукутадзе, М. А.; Khasyanova, D. U.; Mukutadze, A. M.

doi:10.3103/s105261882004010x

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…С. 23-31, а также [12][13][14][15][16]). Установлено, что путем варьирования вида конструкции подшипника и антифрикционного покрытия, соотношения реологических свойств, стратифицированного течения смазочного материала можно разработать эффективные конструкции для применения в трибоузлах машин и механизмов.…”

Section: условные обозначенияunclassified

Design model of radial bearing with bearing sleeve elastic bearing profile and metal coated shaft surface

Akhverdiev,

Kumanin,

Badakhov

2023

Vestnik IzhGTU imeni M.T. Kalashnikova

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The article is devoted to the development and analysis of a design model of lubricant movement in the working gap of a radial journal bearing with an elastic bearing profile of the bearing sleeve surface and a metal coating of the shaft surface with truly viscous properties. New mathematical models have been developed based on basic equations that take into account the flow of a truly viscous liquid for a “thin layer”, the malleability of the bearing sleeve support surface - the Lame equation, compressibility - the equation of state, the Weisbach - Darcy formula, the profile of the molten contour of the metal coating of the shaft surface - the rate of dissipation of mechanical energy. The results of the numerical analysis of the refined models obtained by changing the design of the radial bearing, as well as taking into account the compressibility of the lubricant and the coating melt, allowed us to obtain an effectiveness qualitative assessment of the malleable bearing profile of the bearing sleeve and the shaft with a metal coating. A comparative analysis of the obtained results of theoretical and experimental studies of radial bearing structures: with and without metal coating; elastic support profile; without taking into account the elasticity of the support profile; taking into account compressibility; without taking into account the compressibility of the lubricant. At the end of the research complex, experimental tests were carried out that confirmed the correctness of the results of theoretical studies. The ingenuity of the developed design models, taking into account the use of additional lubrication with a metal coating on the shaft surface to compensate for an emergency shortage of lubricant, the compressibility of the lubricant, as well as the malleability of the bearing surface, consists in the application of a technique for obtaining their exact self-similar solutions. As a result of theoretical, experimental research and comparative analysis of the available scientific results with the obtained ones, it was found that the use of the studied radial journal bearings, taking into account the above factors, significantly increases the bearing capacity (8-9 %), and the coefficient of friction decreases by 7…8 %.

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Section: условные обозначенияunclassified

Design model of radial bearing with bearing sleeve elastic bearing profile and metal coated shaft surface

Akhverdiev,

Kumanin,

Badakhov

2023

Vestnik IzhGTU imeni M.T. Kalashnikova

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“…A fair number of works are devoted to the development of the design model of thrust friction bearings with a porous coating on the surface of a base ring [1][2][3][4][5][6][7][8][9][10][11][12]. However, they did not take into account the rheological properties of ferromagnetic lubricants and the incomplete (pre-emergency) filling of the working gap [13][14][15][16][17][18][19][20][21][22][23][24].…”

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confidence: 99%

Ferromagnetic Lubricants in a Bearing with a Porous Coating of a Base Ring

Opatskikh

2022

KEM

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Based on the flow equation of the ferromagnetic liquid lubricant for the “thin layer”, the continuity equation and the Darcy equation describing the flow of a lubricant in a porous body, the paper presents an accurate self-similar solution of the V-shaped sliding support with a porous coating of the base ring surface taking into account the rheological properties of the lubricant with ferromagnetic properties when the working gap is partially filled at the laminar flow mode. Analytical dependencies were obtained for the field of velocities and pressures in lubricating and porous layers. Besides, the main working characteristics of the studied friction pair are determined: bearing capacity and friction force. The paper provides the assessment of the influence of parameters characterizing ferromagnetic rheological properties, length of the loaded region of the Hartmann number and parameter characterizing the presence of electromagnetic field on the bearing capacity and friction force.

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Ferromagnetic Lubricants in a Bearing with a Molten Base Ring Coating and Nonstandard Slider Profile

Prikhod’ko

Mukutadze

2022

SMART Automatics and Energy

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Hydrodynamic Model of a Wedge-Shaped Sliding Support with an Easy-Melting Metal Coating

Cited by 7 publications

References 4 publications

Design model of radial bearing with bearing sleeve elastic bearing profile and metal coated shaft surface

Design model of radial bearing with bearing sleeve elastic bearing profile and metal coated shaft surface

Ferromagnetic Lubricants in a Bearing with a Porous Coating of a Base Ring

Ferromagnetic Lubricants in a Bearing with a Molten Base Ring Coating and Nonstandard Slider Profile

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