MCL740
| MCL740 | |
|---|---|
| Advanced Lubrication | |
| Credits | 4 |
| Structure | 3-0-2 |
| Pre-requisites | |
| Overlaps | |
MCL740 : Advanced Lubrication
[edit]Introduction: surface topography and its 2-D and 3-D characterizations, interactions of surfaces, friction, wear, lubrication; Regimes of lubrication: hydrodynamic, elastohydrodynamic, mixed, boundary, Stribeck curve; Lubricant: mineral oil, synthetic oil, grease, emulsions, gases, properties of lubricants, various rheology models; Derivation of governing equations: conservations of mass, momentum, energy, establishing 3-D Reynolds equation and energy equation for lubrication simulations; Cavitation and turbulence models; Contact mechanics: 2-D and 3-D contacts, surface and subsurface stresses, asperity contact models, elastic deformation at contacts; Applications of governing equations in design and performance analysis of journal bearings, thrust bearings, squeeze film bearings, hydrostatic bearings, rolling bearings, gear sets, seals, and piston rings; Lubrication in metal forming; Dynamic coefficients: stiffness and damping calculations, rotor vibrations, oil-whirl instability, and friction instabilities; Failure analysis of lubricated contacts/interfaces, Immerging technology: surface textures and bionic surfaces.