Evaluation of the wear resistance of the modified radial bearing design considering the compressibility and viscosity of the micropolar lubricant
- Authors: Mukutadze M.A.1, Kharlamov P.V.1, Prikhodko V.M.1, Bolgova E.A.1, Shvedova V.E.1
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Affiliations:
- Rostov StateTransport University
- Issue: Vol 192, No 4 (2024)
- Pages: 5-13
- Section: MECHANICAL ENGINEERING
- URL: https://ogarev-online.ru/1813-8225/article/view/279150
- DOI: https://doi.org/10.25206/1813-8225-2024-192-5-13
- EDN: https://elibrary.ru/NZPADZ
- ID: 279150
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Abstract
The research includes the development and analysis of a mathematical model of the micropolar lubricant flow in the working gap of a modified design of an infinite radial sliding bearing, taking into account compressibility and the effect of pressure on the rheological properties of the lubricant. Considering the lubricant compressibility, the authors took into account the dependence of the viscosity and density of the lubricant on high pressure. Under typical conditions of radial bearings, significant loads can cause changes in the properties of the lubricant, which affects its ability to form a stable lubricating film. Therefore, the introduction of compressibility parameters into the model allows more accurately predicting the behavior of the lubricant and the effectiveness of lubrication in various operating modes. The new model has been developed by the well-known equations of the flow of a micropolar lubricant, the continuity and the state equation. A comparative analysis of the numerical result of theoretical models and experimental research is carried out. Thus, the research represents a significant contribution to the field of radial bearings sphere. The obtained results can be used for further improvement of bearing designs, which allows increasing their reliability and durability of mechanical engineering.
About the authors
Murman A. Mukutadze
Rostov StateTransport University
Author for correspondence.
Email: murman1963@yandex.ru
SPIN-code: 9636-3223
Scopus Author ID: 55049709500
ResearcherId: AAI-2420-2021
Doctor of Technical Sciences, Professor, Head of Higher Mathematics Department
Russian Federation, Rostov-on-DonPavel V. Kharlamov
Rostov StateTransport University
Email: pvharlamov@rgups.ru
ORCID iD: 0000-0001-5100-4894
Scopus Author ID: 57191516687
Doctor of Technical Sciences, Associate Professor, Head of Transport Vehicles and Tribotechnics Department
Russian Federation, Rostov-on-DonViktor M. Prikhodko
Rostov StateTransport University
Email: v.m.prikhodko@yandex.ru
ORCID iD: 0000-0002-0907-9320
Doctor of Technical Sciences, Professor, Head of Descriptive Geometry and Graphics Department
Russian Federation, Rostov-on-DonEkaterina A. Bolgova
Rostov StateTransport University
Email: bolgova_katya6@mail.ru
ORCID iD: 0000-0002-0737-1846
Graduate Student of Higher Mathematics Department
Russian Federation, Rostov-on-DonValentina E. Shvedova
Rostov StateTransport University
Email: shvedovavalya@yandex.ru
ORCID iD: 0000-0002-8469-7671
Graduate Student of Higher Mathematics Department
Russian Federation, Rostov-on-DonReferences
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