Caricamento in corso...
Elements of Tribology
01VUKYJ, 01VUKNE, 01VUKQD, 01VUKYL
A.A. 2026/27
Course Language
Inglese
Degree programme(s)
Master of science-level of the Bologna process in Ingegneria Meccanica - Torino
Master of science-level of the Bologna process in Ingegneria Meccanica (Mechanical Engineering) - Torino
Master of science-level of the Bologna process in Ingegneria Meccanica (Mechanical Engineering) - Torino
Course structure
| Teaching | Hours |
|---|---|
| Lezioni | 39 |
| Esercitazioni in laboratorio | 21 |
Lecturers
| Teacher | Status | SSD | h.Les | h.Ex | h.Lab | h.Tut | Years teaching |
|---|---|---|---|---|---|---|---|
| Trivella Andrea | Professore Ordinario | IIND-02/A | 15 | 0 | 0 | 0 | 2 |
Co-lectures
Context
| SSD | CFU | Activities | Area context | ING-IND/13 | 6 | B - Caratterizzanti | Ingegneria meccanica |
|---|
2026/27
In mechanical components, bodies in relative motion are subjected to wear with consequent surface damage. The presence of friction leads to energy dissipation with significant loss of efficiency in power transmission systems.
There is an ever-increasing need for design that is mindful not only of construction costs but also of sustainability in terms of resource use, energy savings, and environmental impact.
To this aim this course provides the basic Tribology knowledge on contact mechanics, frictional fatigue, material wear surface lubrication phenomena under the required operating conditions .
Common tribological systems are also described through some examples of engineering applications, both through numerical simulations and through experimental laboratory exercises.
In mechanical components, bodies in relative motion are subjected to wear with consequent surface damage. The presence of friction leads to energy dissipation with significant loss of efficiency in power transmission systems.
There is an ever-increasing need for design that is mindful not only of construction costs but also of sustainability in terms of resource use, energy savings, and environmental impact.
To this aim the course provides the basic Tribology knowledge on contact mechanics, frictional fatigue, material, wear surface and lubrication phenomena under the required operating conditions .
Common tribological systems are also described through some examples of engineering applications, both through numerical simulations and through experimental laboratory exercises.
Understand friction-wear-lubrication phenomena and the manifestation modes of tribological mechanisms.
Understand the behavior of different materials to tribological phenomena.
Ability to analyze basic phenomena with software tools.
Know the main experimental investigation methods for the tribological characterization of materials.
Understand friction-wear tribological phenomena and the manifestation modes of their mechanisms.
Understand the behavior of different materials to tribological phenomena.
Understand the application of lubrication theory on rotating seals and fluid bearings.
Ability to analyze basic phenomena with software tools.
Know the experimental investigation methods on materials and tribological systems.
Basic knowledge of the main types of materials: physical, mechanical and thermal properties.
Strength of materials, concepts of stress and strain.
Basic concepts of lubrication.
Basic knowledge of the mechanical properties of materials.
Strength of materials, concepts of stress and strain.
Contact mechanics: compliant and non-compliant contact, elastic contact, elastoplastic contact, brittle contact, influence of surface roughness (real and nominal contact area). Adhesion and surface energy, tribological compatibility.
Wear: wear mechanisms (adhesive, abrasive, tribo-oxidative, surface fatigue). Archard equation, wear rate. Wear processes (sliding, rolling, fretting, erosion). Running-in and stationary phase, severe and moderate wear.
Friction: static and dynamic friction, stick-slip. Adhesive and abrasive friction models, transfer phenomena, effect of speed and temperature (surface heating). Dynamic friction models (Stribeck, Karnopp, Bristle, Dahal, Lue-Gree, ...). Dynamic friction models with Matlab. Rolling friction.
Experimental methods for determining friction and wear: standard tribometers, test benches for components (standard and non-standard). Notes on the tribological behavior of materials and components for industry: bearings, gears, seals.
Fundamentals of lubrication: lubricants, lubrication regimes, Reynolds equation, numerical solution methods.
Lubricated bearings: axial and radial supports. Models of lubricated bearings
Contact mechanics: compliant and non-compliant contact, elastic contact, elastoplastic contact, brittle contact, influence of surface roughness (real and nominal contact area). Adhesion and surface energy, tribological compatibility.
Wear: wear mechanisms (adhesive, abrasive, tribo-oxidative, surface fatigue). Archard equation, wear rate. Wear processes (sliding, rolling, fretting, erosion). Running-in and stationary phase, severe and moderate wear.
Friction: static and dynamic friction, stick-slip. Adhesive and abrasive friction models, transfer phenomena, effect of speed and temperature (surface heating). Dynamic friction models (Stribeck, Karnopp, Bristle, Dahal, Lue-Gree, ...). Dynamic friction models with Matlab. Rolling friction.
Experimental methods for determining friction and wear: standard tribometers, test benches for components (standard and non-standard). Notes on the tribological behavior of materials and components for industry: bearings, gears, seals.
Fundamentals of lubrication: lubricants, lubrication regimes, Reynolds equation and solution methods.
Rotating seals. Lubricated bearings: axial and radial supports. Models of lubricated bearings.
Indicativelyt 40 hours of lectures and 20 hours of exercises (15 at the Laib and 5 experimental).
Indicativelyt 40 hours of lectures and 20 hours of exercises (15 at the Laib and 5 experimental).
G. Straffelini, Friction and Wear. Methodologies for Design and Control - Springer
B. Bhushan, Principles and Applications of Tribology – Wiley
G. Straffelini, Friction and Wear. Methodologies for Design and Control - Springer
B. Bhushan, Principles and Applications of Tribology – Wiley
Dispense; Esercitazioni di laboratorio;
Lecture notes; Lab exercises;
Modalita di esame: Prova scritta (in aula); Prova orale facoltativa;
Exam: Written test; Optional oral exam;
...
Written exam test.
The written exam includes:
3 open-ended questions regarding all the program (theory, exercises, laboratory). The duration of the written test is 1.5 hours.
An optional oral exam if the grade of the written test is at least 27. The evaluation of the additional question is from - 3 points to + 3 points.
Gli studenti e le studentesse con disabilita o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unita Special Needs, al fine di permettere al/la docente la declinazione piu idonea in riferimento alla specifica tipologia di esame.
Exam: Written test; Optional oral exam;
Written exam test.
The written exam includes:
3 open-ended questions regarding all the program (theory, exercises, laboratory). The duration of the written test is 1.5 hours.
An optional oral question if the grade of the written test is at least 27. The maximum evaluation of the additional question is 3 points.
In addition to the message sent by the online system, students with disabilities or Specific Learning Disorders (SLD) are invited to directly inform the professor in charge of the course about the special arrangements for the exam that have been agreed with the Special Needs Unit. The professor has to be informed at least one week before the beginning of the examination session in order to provide students with the most suitable arrangements for each specific type of exam.