FRICTION, WEAR AND LUBRICATION (MEMM 1343)

  • COURSE INFORMATION

    Open or Close
    This course covers basic knowledge on tribological contact in mechanical systems in relative motion. The course presents the importance, role and properties of contact surfaces, materials and surroundings. Furthermore, the influence of the components of a tribological system and contact conditions on the properties of friction and tear is explained. The course covers the types and the role of lubricants, as well as their influence on the quality of lubrication, friction, and on various friction and wear mechanics. In relation to these topics, the analytical techniques available for the analysis of surface properties, lubricants, tribological behaviour and wider systems are presented.

    COURSE LEARNING OUTCOMES
    1. To compare the influence of friction properties, surface roughness and hardness on the mechanical contact.
    2. To outline wear and tear, types and technique for the characterization of surfaces and damages on machine element.
    3. To analyse the Stribeck curve and the basic modes of lubrication, pressure distribution, influence of viscosity, characteristics and the influence on machine component life.
    4. To evaluate the tribological performances by experimental works.

  • SYLLABUS

    Open or Close
    Introduction to tribology

    Kinetic and static friction
    Friction regimes
    Stribeck curve

    Fundamentals of Contact between solids
    Abrasive, erosive and cavitation wear
    Adhesion and adhesive wear
    Minor wear mechanism

    Physical Properties of lubricants
    Oil viscosity
    Viscosity - temperature relationship
    Viscosity measurement
    Other lubricant characteristic

    Lubricants and their composition
    Mineral oil and vegetable oil
    Synthetic oil
    Emulsions and aqueous lubricants
    Solid lubricant
    Greases

    Tribological Materials
    Surface engineering in tribology
    Tribology testing method

PLEASE SUBMIT YOUR ASSIGNMENT HERE.
NO LATER THAN 29 JUNE 2023.
GOOD LUCK.

  • ASSESSMENT

    Open or Close
    Assignment for "Friction" - 25%
    Assignment for "Wear" - 25%
    Assignment for "Lubrication" - 25%

    Project for "Tribological testing" - 25%

    Total evaluation marks = 100%

    No final exam for this course.

    * Student must attend not less than 80% of lecture hours as required for the subject.

  • REFERENCES

    Open or Close
    1. Donald H Buckley. Surface effects in adhesion, friction, wear and lubrication. Elsevier.
    2. Gwidon W Stachiowiak. Engineering Tribology. Butterworth Heinemann.
    3. Gwidon W Stachiowiak. Wear: Materials, mechanism and practice. John Wiley & Sons, Ltd.
    4. John Williams. Engineering Tribology. Cambridge University Press.
    5. Ludema K C. Friction, wear, lubrication. CRC Press.
    6. Prashad H. Solving tribology problems in rotating machines. CRC Press.
    7. Theo Mang. Industrial Tribology, Wiley-VCH.