10ME831 Tribology syllabus for ME


Part A
Unit-1 Introduction To Tribology 6 hours

Properties of oils and equation of flow: Viscosity, Newton’s Law of viscosity, Hagen-Poiseuille Law, Flow between parallel stationary planes, viscosity measuring apparatus. Lubrication principles, classification of lubricants.

Unit-2 Hydrodynamic Lubrication 6 hours

Friction forces and power loss in lightly loaded bearing, Petroff’s law, Tower’s experiments, mechanism of pressure development in an oil film, Reynold’s investigation and Reynold’s equation in 2D.

Unit-3 Idealized Journal Bearing 7 hours

Introduction to idealized journal bearing, load carrying capacity, condition for equilibrium, Sommerfeld’s numbers and significance of it; Partial bearings, end leakages in journal bearing, numerical problems.

Unit-4 Slider / Pad Bearing With A Fixed And Pivoted Shoe 7 hours

Pressure distribution, Load carrying capacity, coefficient of friction, frictional resistance in a pivoted shoe bearing, numerical examples.

Part B
Unit-5 Oil Flow And Thermal Equilibrium Of Journal Bearing 6 hours

Oil flow through bearings, self-contained journal bearings, bearings lubricated under pressure, thermal equilibrium of journal bearings.

Unit-6 Hydrostatic Lubrication 6 hours

Introduction to hydrostatic lubrication, hydrostatic step bearings, load carrying capacity and oil flow through the hydrostatic step bearing.

Unit-7 Bearing Materials 7 hours

Commonly used bearings materials, properties of typical bearing materials. Advantages and disadvantages of bearing materials.

Unit-8 Behavior Of Tribological Components 7 hours

Selection, friction, Wear of ceramic materials, wear measurements, effects of speed, temperature and pressure. Tribological measures, Material selection, improved design, surface engineering

Last Updated: Tuesday, January 24, 2023