BSc in Automotive Engineering / Бакалавр в Області Автомобільної Техніки

Course Details

Course Information Package

Course Unit TitleTRIBOLOGY FOR AUTOMOTIVE SYSTEMS
Course Unit CodeAUTO305
Course Unit Details
Number of ECTS credits allocated6
Learning Outcomes of the course unitBy the end of the course, the students should be able to:
  1. Recognise and explain the characteristic features of surfaces, the techniques for analyzing surface roughness and define the mathematical description of surface roughness.
  2. Define friction and discuss the different wear mechanisms.
  3. Solve basic contact mechanic problems, including the ability to estimate contact pressure and real area of line and circular contacts.
  4. Distinguish between the different lubrication regimes and examine solutions to lubricated problems.
  5. Select appropriate materials for specific tribological applications and create solutions to specific tribological problems (such as friction and wear).
Mode of DeliveryFace-to-face
PrerequisitesAMEM201Co-requisitesNONE
Recommended optional program componentsNONE
Course Contents Introduction:  Understand and describe the main laws and concepts of Tribology, identify Tribological phenomena,describe factors that influence tribological phenomena, explain the regimes of lubrication and the origins of the Stribeck curve.
Engineering surfaces:  Describe methods for measuring surfaces, Identify finishing processes from a measured surface profile, describe and explain the most commonly used parameters in surface finish analysis
Contact of engineering surfaces: Explain the Hertzian theory of contacting surfaces,Define and solve smooth body contact problems, including estimations of the contact pressure and real area of line and circular contacts.Understand and solve simple problems associated with the friction and temperature rise of dry smooth contact.
Intoduction to friction and wear theories: define Amontons’ Laws of friction, describe sliding and rolling friction and compute the frictional force and the coefficient of rolling friction for a sphere rolling on a plane and a roller on a plane,Understand and define types of wear and classification system of wear mechanisms (mild and severe).Identify the actual physical mechanism of wear (adhesion, abrasion, oxidation, delamination, corrosion, melting, fretting etc.)Describe wear debris analysis, Ferrography.
Intoduction to Hydrodynamic lubrication: Derive Reynolds equation and list and explain the main assumptions underlying this equation and its subsequent approximations.Use of the mobility method to design a journal bearing
Intoduction to EHL and mixed lubrication theory: Describe and explain the lubrication of concentrated contacts (Martin solution and the half Sommerfield solution). Estimate lubricant film thickness, pressure, friction and temperature in elastohydrodynamic lubricated contact and in mixed lubrication

Recommended and/or required reading:
Textbooks
  • Introduction to Tribology by B. Bhusham, John Wiley & Sons, 2002
  • Fundamentals of Fluid Film Lubrication, by Bernard J. Hamrock, Steven R. Schmid, Bo O. Jacobson, Marcel Dekker, 2nd edition, March 2004
References
  • Tribology, Principles and Design applications, by Arnell et all, Springer Verlag, 1993
  • Fundamentals of Machine Elements, by Hamrock, Jacobson andSchmid, McGraw Hill, 1999
  • Modern Tribology handbook, by B. Bhushan, CRC Press.
Planned learning activities and teaching methods Most part of course is delivered to the students by means of lectures and tutorials conducted with the help of power point presentations and hand notes. Lecture notes and presentations are available through the web (extranet) for students to use in combination with the textbooks.

Assessment methods and criteria
Assignments20%
Test20%
Final Exam60%
Language of instructionEnglish
Work placement(s)NO

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