Mathematics education

Engineering

Geotechnical engineering

Materials science

Lubricant

Computer science

Lubrication

Mechanical engineering

Physics

Sessile drop technique

Experimental research

Mathematics

Interface (matter)

Air bearing

Artificial intelligence

Lubrication theory

Composite material

Dimensionless quantity

Fluid bearing

Engineering drawing

Viscosity

Wetting

Stiffness

Bearing (navigation)

Mechanics

Mechanical Systems and Signal Processing

The paper aims to reveal the micro interface lubrication regimes of water lubricated bearing. Typical micro cavities are explored through computational fluid dynamic analysis. Streamline, pressure, eddy viscosity and kinetic energy distribution are obtained in the micro cavities. Influences of operating conditions and dimensionless structural parameters on fluid features are explored with detailed information. Velocity vectors as well as pressure contours are acquired inside the cavity. Analysis elaborates the micro interface lubrication mechanisms as well as the changing rules of lubrication performances with structural parameters for the cavity. Experimental data verifies the correctness of the lubrication model and the lubrication regimes. The micro interface lubrication mechanisms are revealed and they apply to bearings with different dimensions. Research results lay solid foundation for further optimal design of surface topography of such bearings.

Theoretical and experimental research on the micro interface lubrication regime of water lubricated bearing