Transient thermal elastohydrodynamic of rough surfaces under line contact with non-newtonian solid-liquid lubricants

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Published: Oct 11, 2018
Keywords:
Thermal elastohydrodynamic lubrication Non-Newtonian solid liquid lubricants Power law model Modified Reynolds equation

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C. Aiumpronsin
Mechatronics and Robotics Engineering Department, Faculty of Engineering, South-East Asia University, Bangkok, 10160
M. Mongkolwongrojn
Mechanical Engineering Department, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520

Abstract

The thermal compressible elastohydrodynamic lubrication of rough surfaces under line contact with non-Newtonian solidliquid lubricants was investigated in transient operating conditions. Properties of non-Newtonian solid-liquid fluids have been obtained experimentally using solid particles namely, Molybdenum disulfide. The newly derived time-dependent modified Reynolds equation and the adiabatic energy equation have been formulated using a non-Newtonian power law viscosity model. The simultaneous systems consisting of the modified Reynolds equation, elasticity equation and energy equation with initial conditions were solved numerically using the multigrid multilevel method with a full approximation technique. The dynamic characteristics of the two infinitely long cylindrical rough surfaces in line contact under thermoelastohydrodynamic lubrication were presented with varying dimensionless time and with varying particle concentration for the pressure, temperature and oil film thickness profiles. The results of rough surfaces thermoelastohydrohynamic lubrication with non-Newtonian solid-liquid lubricants are compared with the case of smooth surfaces.

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How to Cite
Aiumpronsin, C., & Mongkolwongrojn, M. (2018). Transient thermal elastohydrodynamic of rough surfaces under line contact with non-newtonian solid-liquid lubricants. Journal of Research and Applications in Mechanical Engineering, 1(1), 31–36. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/150253
Issue
Vol. 1 No. 1 (2011)
Section
RESEARCH ARTICLES

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References

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