Docente

prof. Alessandro GASPARETTO

Credits

6 CFU

Language

Italian

Objectives

The course provides the basic knowledge of Applied Mechanics principles (tribology, motor-load coupling, dimensioning of machine components).

Acquired skills

- Basic knowledge of surface mechanics.
- Ability to model physical phenomena related to mechanical systems.
- Basic knowledge of the principles of motor-load coupling.
- Knowledge of the main mechanical components and of their applications.

Lectures and exercises (Topics and specific content)

Surface mechanics: mechanical features of materials; contact between solid bodies, Hertz's model; static and dynamic friction, modeling and experimental results; wear, Holm's model and Reye's assumption; friction in rotary joints (10 hours).
Motor-load coupling: efficiency of a machine; mechanical characteristics of motor and load; direct coupling and coupling through speed reducer; steady state and transient; dynamic analysis; periodic state; flywheel synthesis; static and dynamic balancing of rotors (18 hours).
Drives and other mechanical components: tackles; belt drives; hoists, winches, capstans; chain drives; cardan joint; toothed gears; ordinary and epicyclic gearings; comparison of different drives; screws and their applications; clutches (28 hours).
Vibration: modeling of vibrations: free and forced response; mechanical resonance (4 hours).

References

- Lecture notes
- G. Jacazio, S. Pastorelli, “Meccanica applicata alle macchine”, Ed. Levrotto e Bella, Torino
- R. Ghigliazza, C. U. Galletti, “Meccanica applicata alle macchine”, Ed. UTET, Torino
- M. Giovagnoni, A. Rossi, “Un’introduzione allo studio dei meccanismi”, Ed. Cortina, Padova

Type of exam

Written and oral

Additional material or information on line