Teaching: Mechanics of Contact & Lubrication

Mechanics of Contact and Lubrication

Course Description:

This graduate level course studies the theoretical background and the state of the art in the areas of contact, lubrication and wear mechanics. Brief review of elasticity, fluid mechanics and probability theory is provided. Methods of characterization of engineering surfaces and use of surface profilers are introduced. Hertzian contact, contact of rough surfaces, real area of contact, rolling contacts, friction of solids are studied. Theory of lubrication, compressible and incompressible Reynolds equation, effects of slip flow are introduced.

Textbook:

Engineering Tribology, J.A. Williams, Cambridge University Press, ISBN: 0-521-60988-7.
and lecture notes.

Syllabus:

1. Introduction
2. Brief History
3. Review of Theory of Elasticity and Fluid Mechanics
4. Engineering Surfaces
5. Hertzian Contacts
6. Contact of Rough Surfaces
7. Real Area of Contact
8. The Friction of Solids
9. Mechanisms of Wear
10. Reynolds Equation of Lubrication
11. One Dimensional Reynolds Equation
12. Two Dimensional Reynolds Equation
13. Effect of slip flow
14. Compressible and Incompressible lubricants
15. Bearing types
16. Elastohydrodynamic Lubrication
17. Boundary Lubrication

Projects Spring 2006

• Group-1: Chemical Mechanical Planarization
• Group-2: Biomedical Catheters and Stents
• Group-3: Tribology of Tooth & Dental Implants
• Group-4: Effect of Molecular Adhesion in Single Asperity Contacts
• Group-5: Tribology of artificial intervertebral disk
• Group-6: Tribology of Optical Surface Manufacturing
• Group-7: High temperature wear issues as applied to jet engines
• Group-8: Roller bearings in large equipment
• Group-9: Wear characteristics of bearings on PEEK retainers

Projects Spring 2009

• Aircraft engine bearings and splines
• Adhesion of a rectangular plate in the presence of intersurface force
• Application of tribology in aircraft engine sealing technology
• Biotribology considerations of total knee replacement
• Finding the topography of a surface using a new method and its application on thermal spray coatings
• Gecko-inspired and/or directional adhesion for micro arrays
• Mechanics of erosion
• Mechanics and tribology of thin coatings
• Shot peening process
• Study of needle insertion forces
• Tribology of cleaning glass surfaces using a rotating brush

Projects Spring 2011

• Tribology of Electrical Contacts
• Air lubrication in HDDs
• Artificial hip replacement
• Engine Tribology
• Foil_Bearing_Technology
• Friction & Lubrication in Rotatry Silicon MEMS Devices
• Mechanical Properties of CNTs & their Tribological Applications
• Micro Tribology
• Tribology of Journal Bearings Subjected to Boundary and Mixed Lubrication

References:

• Tribology A Systems Approach To The Science And Technology Of Friction Lubrication And Wear, Czichos, Horst.; TJ1075 .C94, 1978
• Tribology And Mechanics Of Magnetic Storage Devices, Bhushan, Bharat, TK7881.6 .B48 1990
• Gas Film Lubrication, Gross William A, TJ1075 .F62 1980
• Fundamentals Of Fluid Film Lubrication, Bernard J. Hamrock, TJ1063 .H35 1994
• Contact mechanics, K.L. Johnson, TA350 .J57 1985
• The Friction And Lubrication Of Solids, by F.P. Bowden And D. Tabor, TJ1075 .B65 2001
• Friction And Wear Of Materials, Ernest Rabinowicz, TA403.6 .R317 1995

General References:

Adhesion:

• Intermolecular and Surface Forces, J. Israelachvili, Academic Press, 1991.

Classic Textbooks:

• The Friction and Lubrication of Solids, F.P. Bowden and D. Tabor, Clarendon Press, 1950.
• Friction and Wear of Materials, E. Rabinowicz, John Wiley & Sons, 1995.

Contact Mechanics:

• Contact Mechanics, K.L. Johnson, Cambridge University Press, 1985.
• Mechanics of Elastic Contacts, D.A. Hills, D. Nowell, A. Sackfield, Butterworth Heinemann, 1993.

General Tribology:

• Friction, Wear and Lubrication, K.C. Ludema, CRC Press, 1996.
• Engineering Tribology, J.A. Williams, Oxford Science Publications, 1997.
• Principles and Applications of Tribology, B. Bhushan, John Wiley & Sons, 1999.
• Engineering Tribology, G.W. Stachowiak, A.W. Batchelor, Butterworth Heinemann, 2001.
• Introduction to Tribology, B. Bhushan, John Wiley & Sons, 2002.

Lubrication:

• Fundamentals of Fluid Film Lubrication, B. J. Hamrock, McGraw-Hill, 1994.
• Gas Film Lubrication, Gross, W.A., John Wiley & Sons, 1980.

Surfaces:

• Rough Surfaces, T.R. Thomas, Imperial College Press, 1999.
• Surfaces and Their Measurement, D. Whitehouse, Taylor & Francis, 2002.

Tribology of Magnetic Storage Devices and Nano Tribology:

• Tribology and Mechanics of Magnetic Storage Devices, B. Bhushan, Springer-Verlag, 1990.
• Handbook of Micro/Nano Tribology, B. Bhushan (ed.), CRC Press, 1995.