Coefficient of a Rolling Motion Bearing Drive

Mukutadze, A. M.

doi:10.1016/j.proeng.2016.07.040

Cited by 16 publications

(3 citation statements)

References 7 publications

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“…However, lubrication on fused coatings is not a self-sustaining process. To ensure self-sustaining lubrication of sliding bearings, it is necessary that one of the contact surfaces had metal coating and there was always some lubricant present, which can be achieved by the continuous feeding of the lubricant or by using a porous coating on the other contact surface [13][14][15][16][17][18][19][20][21][22][23][24][25][26], or by using an unconventional support profile.…”

Section: Introductionmentioning

confidence: 99%

Calculation model for lubrication of bearings with unconventional support surface profile and fusible shaft surface coating

Badakhov

Zinoviev²,

Мукутадзе³

et al. 2023

E3S Web of Conf.

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This research work uses the true viscous fluid flow equation for the thin layer, the continuity equation, and the equation describing the radius of the fused shaft coated with a metal alloy taking into account the mechanical energy dissipation rate formula to find the asymptotic and the exact self-similar solution for the zero and first-order approximation for the radial sliding bearing with the support profile adapted to friction and lightalloy coating for incomplete filling of the working gap. We obtained the analytical dependencies for the fused surface radius of metal coating and the speed and pressure field. Besides, we determined the key operating parameters of the reviewed friction couple, the carrying capacity, and the friction force. The authors assess the impact of the parameters associated with the fusing of the coating of the friction-adapted support profile and the length of the loaded area on the carrying capacity and the friction force.

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Section: Introductionmentioning

confidence: 99%

Calculation model for lubrication of bearings with unconventional support surface profile and fusible shaft surface coating

Badakhov

Zinoviev²,

Мукутадзе³

et al. 2023

E3S Web of Conf.

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“…One of the peculiarities of the existing calculation methods for the considered structures of a tribounit operating on lubricants and coating melts is the absence of a self-sustaining lubrication [18][19][20][21][22]. To ensure the self-sustained lubrication and increase the duration of the hydrodynamic lubrication mode, one of the options to solve structural and operational problems may be the use of tribounits with low-melting metal and porous coatings of contact surfaces.…”

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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“…However, the process of lubrication on melts of coatings is not a self-sustaining process. To ensure a self-sustaining lubrication process for plain bearings, it becomes necessary not only to have a metal coating on one of the contact surfaces, but also a constant supply of lubricant, which can be provided with a constant supply of lubricant or a porous coating on the other contact surface [10][11][12][13][14][15][16][17][18][19], as well as nonstandard support profile.…”

Section: Introductionmentioning

confidence: 99%

Calculated model of a lubricant in a bearing with a non-standard support profile of a sleeve and a metal-coated shaft

et al. 2023

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In this work, on the basis of the flow equation of a truly viscous liquid, the continuity equation, and the equation describing the radius of the molten contour of the shaft coating, taking into account the dissipation rate of mechanical energy, an asymptotic and exact self-similar solution was found for the zero (without taking into account the melt) and the first (taking into account the melt) approximation of a radial bearing with a non-standard support profile adapted to friction conditions in hydrodynamic mode when the metal coating lubricates the shaft surface, taking into account the dependence of viscosity on pressure. An analytical dependence is obtained for the radius of the molten surface of the metal coating, as well as for the field of velocities and pressures at zero and first approximations. In addition, the main operating characteristics of the friction pair under consideration, the load capacity and the friction force are determined. The influence of the parameters characterizing the melt of the coating, the support profile adapted to the friction conditions, the dependence of the viscosity on the pressure on the load capacity and the friction force is estimated.

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Coefficient of a Rolling Motion Bearing Drive

Cited by 16 publications

References 7 publications

Calculation model for lubrication of bearings with unconventional support surface profile and fusible shaft surface coating

Calculation model for lubrication of bearings with unconventional support surface profile and fusible shaft surface coating

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

Calculated model of a lubricant in a bearing with a non-standard support profile of a sleeve and a metal-coated shaft

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