Mechanical Engineering

The program is divided into two main parts: a first part dedicated to the recall of basic concepts of contact mechanics and tribology; a second part dedicated to the presentation and analysis of mechanical systems / structures through practical examples by means of experimental and numerical tools: • Introduction to contact mechanics; • Finite element analysis with contact interfaces; • Development of a simplified model of contact between deformable bodies and comparison with the Hertz theory. • Case study of a highly loaded oscillating bearing: analysis of stresses and deformations at the contact; • Stability analysis of a disk-brake system: complex modal numerical analysis; • Description of a tribometer: analysis and design; • Dynamic tests on a rotary and linear tribometer; • Definition and implementation of the measurement chain for the friction coefficient between two materials in sliding contact by using linear tribometer;

Finite element analysis Numerical analysis Basic concepts of tribology Basic concepts of mechanical measurements

Slides and notes presented during the classes. Contact Mechanics, 16 mag 1985 di K. L. Johnson Computational Contact Mechanics Peter Wriggers

The course will take place through lectures, during which basic theoretical topics and problems related to tribology will be recalled. Subsequently some numerical and experimental examples will be presented and discussed as well.

strongly recommended

Oral presentation of the project followed by questions related to the laboratory program. To pass the exam, the student must demonstrate to have acquired a sufficient knowledge of the topics presented in the program and to be able to apply them to present the final project.

The course will take place through lectures, during which basic theoretical topics and problems related to tribology will be recalled. Subsequently some numerical and experimental examples will be presented and discussed as well.