Welcome to Tribodynamics

The focus of this course is on the relationship between motion and friction. The motion of surfaces can vary in complexity, from simple steady sliding to movements that are highly variable in time and direction. Tribology is the study of such surfaces in relative motion and the performance of any tribological interface is directly related to friction. Depending on the desired outcome, the optimal friction may be either maximum or minimum. Tribology enables motion, and system designs rely on a proper understanding of the tribodynamics. This course provides the fundamentals of continuum tribodynamics modelling and simulation. In addition, novel non-invasive experimental techniques are introduced.

Day 1: Lecturer: Per Johansen Hours: 8
- Fundamentals of friction
- Reynolds lubrication theory
- Thermohydrodynamic lubrication

Day 2:  Lecturer: Per Johansen Hours: 8
  • Elastohydrodynamics
  • Thermo-Elastohydrodynamics
  • Contact models and rough surfaces 

Day 3: Lecturer: Per Johansen Hours: 8
  • Computational tribodynamics
  • Multibody systems with imperfect joints 

Day 4: Lecturer: Per Johansen Hours: 8
  • Ultrasound reflectometry in tribology
  • Adaptive ultrasound reflectometry
  • The vision of smart tribology systems

Prerequisites:Fundamentals of fluid mechanics, thermodynamics, solid mechanics and multibody dynamics

Form of evaluation: Mini-project

Organizer: Per Johansen

Lecturers: Per Johansen


Time: 7-10 December 2020
Read more about time and place here: (click on the specific course) 

Zip code: 9220 

City: Aalborg East

Number of seats: 30

Deadline: 16 November 2020

Important information concerning PhD courses: We have over some time experienced problems with no-show for both project and general courses. It has now reached a point where we are forced to take action. Therefore, the Doctoral School has decided to introduce a no-show fee of DKK 3,000 for each course where the student does not show up. Cancellations are accepted no later than 2 weeks before start of the course. Registered illness is of course an acceptable reason for not showing up on those days. Furthermore, all courses open for registration approximately four months before start. This can hopefully also provide new students a chance to register for courses during the year. We look forward to your registrations.