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Stochastic models for turbulent lubrication of bearing with rough surfaces
- Source :
- Tribology International. 136:224-233
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Currently used turbulent lubrication model that considers the effects of surface roughness can only handle the isotropic rough surfaces and cannot handle the rough surfaces with directional properties. In this paper, based on the stochastic method and the Ng-Pan turbulent model, the stochastic turbulent lubrication models of one-dimensional longitudinal rough surface, one-dimensional transverse rough surface and isotropic rough surface are derived. The turbulent lubrication performance of a journal bearing with isotropic rough surface is calculated by the stochastic turbulent lubrication model. The results are in good agreement with the corresponding experimental data. Moreover, the proposed stochastic turbulent lubrication models are also suitable for parts of friction pairs such as journal bearing and thrust bearing.
- Subjects :
- Materials science
Bearing (mechanical)
Turbulence
Stochastic modelling
Mechanical Engineering
Isotropy
02 engineering and technology
Surfaces and Interfaces
Mechanics
021001 nanoscience & nanotechnology
Surfaces, Coatings and Films
law.invention
Physics::Fluid Dynamics
Transverse plane
020303 mechanical engineering & transports
Thrust bearing
0203 mechanical engineering
Mechanics of Materials
law
Surface roughness
Lubrication
0210 nano-technology
Subjects
Details
- ISSN :
- 0301679X
- Volume :
- 136
- Database :
- OpenAIRE
- Journal :
- Tribology International
- Accession number :
- edsair.doi...........65752bfc3e16076cdbb7ad7c3d6617b0