Numerical Simulation of the Lubricant-Solid Interface Using the Multigrid Method

Solid asperity interactions are common and inevitable under severe loading conditions for any lubricated contact. Heavy-duty machine components (gears, bearings, etc.) generally operate Mixed Lubrication (ML), where uneven surface features contact each other when the generated fluid pressure is not enough to support external load. The Reynolds equation commonly used simulate smooth contacts numerically. In rough interfaces opposite asperities make contact, alone cannot accurately predict using traditional numerical simulation method. this paper, lubrication–contact interface (LCICs) have been implemented extended solve multiple problem full-multigrid approach. developed novel algorithm has significantly accelerated solution process improved accuracy efficiency of calculation fluid–solid sub-interactions that can occur in ML regions. results finite difference method (FDM) compared with those computational dynamics (CFD) validate newly model. Hence, proposed optimized will provide valuable insight researchers industry engineers interested simulating effect be captured effectively improve reliability life expectancy parts.