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Determination of friction coefficient for water-lubricated journal bearing considering rough surface EHL contacts
https://orcid.org/http://orcid.org/0000-0002-2032-688X
This work aims to study the tribological performance of the water-lubricated journal bearings by developing an EHL model considering non-Gaussian roughness and cavitation. An elastohydrodynamic lubrication (EHL) model is established by solving the Reynolds equation, elastic deformation and film thickness equations in a coupling manner by using the finite difference method with a successive over-relaxation scheme. The non-Gaussian flow factors and cavitation factors are incorporated in the Reynolds equation to tackle the roughness and non-Gaussian roughness effects. The result shows that the coefficient of friction increases with an increase in skewness. A significantly increase in the minimum film thickness is observed for a surface having high negative skewness. The friction coefficient decreases with an increase in the L/D ratio.
Determination of friction coefficient for water-lubricated journal bearing considering rough surface EHL contacts
https://orcid.org/http://orcid.org/0000-0002-2032-688X
This work aims to study the tribological performance of the water-lubricated journal bearings by developing an EHL model considering non-Gaussian roughness and cavitation. An elastohydrodynamic lubrication (EHL) model is established by solving the Reynolds equation, elastic deformation and film thickness equations in a coupling manner by using the finite difference method with a successive over-relaxation scheme. The non-Gaussian flow factors and cavitation factors are incorporated in the Reynolds equation to tackle the roughness and non-Gaussian roughness effects. The result shows that the coefficient of friction increases with an increase in skewness. A significantly increase in the minimum film thickness is observed for a surface having high negative skewness. The friction coefficient decreases with an increase in the L/D ratio.
Determination of friction coefficient for water-lubricated journal bearing considering rough surface EHL contacts
https://orcid.org/http://orcid.org/0000-0002-2032-688X
This work aims to study the tribological performance of the water-lubricated journal bearings by developing an EHL model considering non-Gaussian roughness and cavitation. An elastohydrodynamic lubrication (EHL) model is established by solving the Reynolds equation, elastic deformation and film thickness equations in a coupling manner by using the finite difference method with a successive over-relaxation scheme. The non-Gaussian flow factors and cavitation factors are incorporated in the Reynolds equation to tackle the roughness and non-Gaussian roughness effects. The result shows that the coefficient of friction increases with an increase in skewness. A significantly increase in the minimum film thickness is observed for a surface having high negative skewness. The friction coefficient decreases with an increase in the L/D ratio.
Determination of friction coefficient for water-lubricated journal bearing considering rough surface EHL contacts
Int J Interact Des Manuf
Prajapati, Deepak K. (author) / Katiyar, Jitendra Kumar (author) / Prakash, Chander (author)
2024-07-01
9 pages
Article (Journal)
Electronic Resource
English
Boussinesq elastic half-space , Elastohydrodynamic lubrication , Friction coefficient , Marine propeller shaft , Water-lubricated journal bearing Engineering , Engineering, general , Engineering Design , Mechanical Engineering , Computer-Aided Engineering (CAD, CAE) and Design , Electronics and Microelectronics, Instrumentation , Industrial Design
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