MEC 470/570 Introduction to Engineering Tribology

Credits: 3 Contact Hours: 3 hour lectures per week

LEAD COORDINATOR T. Nakamura

TEXTBOOK Engineering Tribology by J.A. Williams, Cambridge University Press. SUPPLEMENTAL MATERIAL

BULLETIN DESCRIPTION The focus of this course is on the fundamentals of tribology, the science of surfaces in relative motion, with an introduction to friction, lubrication, and wear. The basics of tribology science: engineering surfaces, contact mechanics, lubrication theory, wear processes and modeling, wear properties of materials, and tribology test methods are covered. Analysis of tribological aspects of machine components and bearings, along with industrial case studies are presented to place the topics in context to industry and society.

PREREQUISITES: MEC 363; MEC 364; U4 standing

THIS COURSE IS a Technical Elective

COURSE LEARNING OBJECTIVES SOs ASSESSMENT TOOLS

1. Understand the nature of surface characteristic parameters and the analysis of the statistical distribution of surface profiles Exams

2. Apply lubrication theory to the design of a bearing element Exams

3. Understand contact mechanics theory and be able to relate surface roughness to real contact area Exams

4. Identify the wear modes of a tribological system and explain the mechanisms behind each mode Exams

5. Distinguish the effects of surface modifications on the friction of material couples Exams

STUDENT OUTCOMES SUPPORTED (Scale 1-3)

a b c d e f g h i j k l m n

3 – Strongly supported 2 – Supported 1 – Minimally supported Program Criteria

COURSE TOPICS

1. Engineering Surfaces 2. Surface Measurement Techniques 3. Contact between Surfaces 4. Friction of Solids and Modeling 5. Wear and Surface Damage and Testing Techniques 6. Hydrostatic and Hydrodynamic Bearings 7. Elasto-Hydrodynamic Lubrication Theory 8. Boundary Lubrication, Lubricants and Surface Modifications