In the present study, a numerical solution is presented to investigate the combined effects of lubricant rheology and surface roughness parameters on the characteristic of elastohydrodynamic lubrication problem for point contact. Sinusoidal waviness for surface roughness is considered to show the effect of changing amplitude and wavelength on the film thickness and pressure profile. The results show that, surface waviness leads to random fluctuations of pressure and film thickness for both modes of lubricant of Newtonian and non-Newtonian. As the amplitude of the waviness increase, the more fluctuations of pressure profile and film profile occur. Changing the wavelength of wavy surface shows that the amplitude of the pressure fluctuation becomes a little more remarkable as wavelength increase. The difference between Newtonian and non-Newtonian lubricant is that the non-parallel film shape in the contact region occurs for non-Newtonian model in addition to the reduction in film thickness compared to the Newtonian model.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.