Unit MECHANICS OF MACHINES

Course
Industrial engineering
Study-unit Code
70091010
Curriculum
In all curricula
Teacher
Maria Cristina Valigi
Teachers
  • Maria Cristina Valigi
Hours
  • 90 ore - Maria Cristina Valigi
CFU
10
Course Regulation
Coorte 2018
Offered
2019/20
Learning activities
Caratterizzante
Area
Ingegneria meccanica
Academic discipline
ING-IND/13
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa monodisciplinare
Language of instruction
Italian
Contents
-Kinematic pairs and mechanisms.
-Friction and wear.
-Lubrication.
-Efficiency of machines and group of machines.
-Kinetostatic and kinematics analysis of planar mechanisms with graphical and analytical methods.
-Preliminary design
of gearings and transmission systems.
-Mechanical vibrations.
-Lagrangian dynamics to mechanisms and mechanical systems.
-Motion transmission with flexible elements.
-Balancing of alternative mechanisms.
Reference texts
1)Funaioli E., Maggiore A., Meneghetti U., Lezioni di Meccanica applicata alle macchine. Prima parte: Fondamenti di Meccanica delle Macchine, ed. Patron, Bologna.
2) S.Papini,
M.Malvezzi,S.Falomi Esercitazioni di meccanica applicata alle macchine: 1 Ed.Esculapio

3)S.Papini,
M.Malvezzi,M.C.Valigi Esercitazioni di meccanica applicata alle macchine: 2 Ed.Esculapio
3)
Educational objectives
Applications of fundamentals for the kinematic, static, and dynamic analysis of mechanical systems commonly found in machinery.
Prerequisites
knowledge and competencies in theoretical mechanics
and analytical dynamics.
Teaching methods
Face-to-face theoretical lessons and exercises.
Other information
Attending students have the possibility of examination in itinere.
Learning verification modality
A written examination. and an oral examination.
Extended program
Definition of machine. Kinematic chains and mechanisms. Kinematic pairs. rinciple of Tribology. Contact forces. Efficiency. Friction. Coulomb friction. Coefficient of friction. Wear. Reye principle. Rolling friction.The free-body diagram. Superposition. Graphical force analysis. Analytical Statics. Calculating Reactions. The Principle of Virtual Work. Kinetic Energy. D'Alembert principle and Inertial forces. Lagrange's equations.Fundamental law of Gearing. Spur Gears and helical gears. Gear Tooth forces. Gear trains. Planetary Gear trains. Fixed and movable pulley.Belt drives.Mechanical vibrations: Single dof model. Free response and forced response of the single dof system. Multiple dofs.Balancing of machinery.
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