Textbook:

Hamrock, B.J., Fundamentals of Fluid Film Lubrication, 2nd Ed, McGraw Hill, 2004.

References:

1. Arnell, R.D., Davies, P.B., and Halling, J., and Whomes, T.L., Tribology Principles and Design Applications, MacMillan, 1991.
2. Stolarski, T.A., Tribology in Machine Design, 2nd Ed., Heinemann Newnes, 2000.
3. Bannister, K. E., Lubrication for Industry, 2nd Ed., Industrial Press Inc, 2006.
4. Bhushan, B., Introduction to Tribology, 2nd Ed., John Wiley & Sons, 2013.

Coordinator:

Solid Mechanics and Design TAG

Prerequisites by Topics:

1. Design of Machine Elements
2. Fluid Mechanics
3. Materials Science

Course Objectives[^1]:

1. To teach students friction theories, wear mechanisms, and lubrication modes. (1,2)
2. To teach students how to apply theory of fluid film lubrication to analyze, design, and/or select thrust, journal, hydrostatic, squeeze, and rolling contact bearings. (1,2)
3. To illustrate to the students types and properties of lubricants and different types of lubricating systems and emphasize the need to keep learning. (1,4,7)
4. To train students to apply the basic principles of friction, wear, and lubrication to solve practical problems. (4,5,7)

Topics:

1. Friction Theories
2. Wear Mechanisms
3. Lubricant Properties
4. Types of Lubricants
5. Viscous Flow (Navier-Stokes Equations and Continuity Equation)
6. Reynolds Equation
7. Hydrodynamic Thrust Bearings
8. Hydrodynamic Journal Bearings
9. Hydrodynamic Squeeze Film Bearings
10. Hydrostatic Lubrication
11. Elastohydrodynamic Lubrication of Line Contacts
12. Elastohydrodynamic Lubrication of Points Contacts
13. Lubrication Systems

Computer Usage:

9 homeworks are assigned during the semester. Students are required to use the computer in at least 2 of them.

Students will develop computer models to complete the project assignment.

Suggested Evaluation Methods:

1. Exams
2. Home Works
3. Projects
4. Presentations

Course Learning Outcomes:

Objective 1:

1.1 Students will be able to identify and describe the theories of friction and the factors affecting the coefficient of friction between contacting surfaces in relative motion.

1.2 Students will be able to identify wear mechanisms and show how to minimize wear for different interfacial conditions.

1.3 Students will be able to identify the lubrication modes such as hydrodynamic lubrication, elastohydrodynamic lubrication.

Objective 2:

2.1 Students will be able to derive the Reynolds equation from Navier Stokes equations and continuity equations.

2.2 Students will be able to apply Reynolds equation and obtain the pressure distribution, volume flow rate, and load carrying capacity for hydrodynamically lubricated conjunctions such as thrust bearings, journal bearings, hydrostatic bearings, and squeeze film bearings.

2.3 Students will be able to formulate elastohydrodynamic lubrication models for line and point contacts. Students will demonstrate the ability to use design charts, empirical equation to calculate film thickness for different types of bearings.

Objective 3:

3.1 Students will be able to identify types and properties of lubricants used in machinery.

3.2 Students will be able to design and/or select lubricating systems.

3.3 Students will demonstrate the ability to seek and learn new materials about lubricants and lubricating systems.

Objective 4:

1. Students will be able to work in teams to investigate failure of machine components due to excessive wear and/or improper lubrication. They will be able also to propose practical solutions to the problem.
2. Students will be able to develop a computer model for oil lubricated bearing designs.

Prepared by: Dr. Abdallah Elsharkawy Date: November 24, 1998

Modified/Updated by SMD TAG:

March 2004; August 2006; October 2015; October 2018

[Course Classification Form]{.underline}

Course Number: ME 481 Course Name: Tribology and Lubrication

[^1]: Numbers in parentheses refer to the student outcomes