The course is taught in English. The present course must be attended by all the students coming from the area of the information technology. It is in alternative to the course "Basics in Electronics" and will be taught in the fall semester of the first year. The purpose of this course is to provide to the students the following topics: basic knowledge on kinematics, statics and dynamics of mechanical systems, basic knowledge on the mechanical behavior of materials, static and fatigue design of some machine elements of automatic systems.

Knowledge of the basic theory of rigid body kinematics and couplings between rigid bodies. Knowledge of the basic theory of relative motions and articulated mechanisms. Knowledge of the basic theory of dynamics of plane mechanical systems. Knowledge of basic friction laws and their consequences on mechanical systems. Ability to draw free body diagrams and to compute the resulting forces in equilibrium condition. Ability in using energy equations and momentum conservation theorems. Knowledge on the generalized force distribution in mechanical structures. Knowledge on the basics of stress and strain analysis in mechanical structures. Knowledge of the methodologies for the computation of the equivalent stresses and computation of the adequate safety factors. Knowledge on the basics of fatigue theory. Knowledge on static and fatigue analysis of basic mechanical components of mechanical systems. Basic knowledge in the static and fatigue design of components of automatic machines.

Basics of Mathematical Analysis, Physics and Technical Drawing.

Description of the mechanics of rigid bodies and of the forces acting upon them. Presentation of the main characteristics of mechanical drives and of their individual components. Outline of the basics of mechanical systems dynamics. The course of Applied Mechanics links the description of the physics underlying the behavior of mechanical drives and their components to the methods instrumental in solving engineering problems such to enable the students at the end of the course to properly address problems relevant to the mechanical systems and to the transmission of the mechanical power from a prime mover to an operating machine. The course of Machine Design focuses on damage and failure mechanisms. In particular it describes the main failure behaviors of materials and basic mechanical components of automatic machines. APPLIED MECHANICS (40h) - Outline of machine components. Examples of mechanical systems with rigid and flexible transmission line (2 h) - Rigid body kinematics. Couplings: bearings, bushings, cams, power screw, prismatic guides. Examples of typical use in automation (8 h) - Relative motion kinematics, articulated mechanisms, examples of mechanical drive systems in automatic systems. (6 h) - Plane dynamics of mechanical systems: force and momentum, dynamic laws, free body diagram. Applications to typical systems. (8 h) - Friction laws. Friction models, static and kinetic dry friction, rolling resistance. (8 h) - Applications of the energy equation, momentum equation and angular momentum equation. (6 h) - Outline of mechanical systems vibrations. (2 h) MACHINE DESIGN (40h) - Definition of stress and strain tensors (2 h) - Mechanical stress calculation of statically determined structures (4 h) - Strain and stress analysis (3 h) - Stress analysis in De Saint Venant prism (5 h) - Stress intensity factor (4 h) - Failure criteria and static design for metallic materials. Static safety factor (4 h) - Stress and strain measurement methods and sensors (2 h) - Introduction to mechanical fatigue (6 h) - Machine element design, static and fatigue calculation of: • shafts (2 h) • springs (2 h) • bearings (2 h) • gears (2 h) • threaded joints (2 h)

Class exercises address examples of application of the topic presented in the theory classes. Some exercise sessions aim at acquiring the ability to design and verify machine.

Applied Mechanics: C. Ferraresi, T. Raparelli, Applied Mechanics, CLUT, 2017. (in english) J.L. Meriam, LG. Kraige, Engineering Mechanics, Vol I,II, Wiley, 2003. (in english) Machine Design: 1. Fondamenti di meccanica strutturale G. Curti, F. Curà, CLUT, 2006, 2. Introduzione alla fatica dei materiali e dei componenti meccanici, M; Rossetto, Levrotto & Bella, 2000, 3. Fundamentals of machine component design, R. C. Juvinall, C. Marshek, Wiley, 2006. 4. Mechanics of Materials, 3rd Edition, Roy R. Craig, Wiley ed, 2011 The teaching material will be made available by the class teacher on the didattica web portal.

Slides; Esercizi; Esercizi risolti; Video lezioni tratte da anni precedenti;

Modalità di esame: Prova scritta (in aula);

Exam: Written test;

... The exam is aimed at checking the knowledge of the topics listed in the official program of the course and the ability to apply the theory and the relative methods of calculation to the solution of exercises. The final written exam consists of questions and exercises on the content of the course and is made of two parts (duration of one part: 75 minutes), each ranked from 0 to 30: one part concerns the Applied Mechanics and the other one concerns the Machine Design. The Applied mechanics test is composed of two exercises, which require the ability to choose and apply the appropriate method for its resolution, as proposed during the course. They also require theoretical knowledge and the ability of the student to identify the type of technical problem presented and develop it consistently, in particular the first exercise requires the knowledge of the kinematics of rigid bodies and mechanisms, the second the knowledge of various aspects of dynamics and friction. The Machine Design part is composed of one exercise divided in two parts and one theory question. The exercise requires the ability of calcuating the stresses in a simply loaded beam according to de Saint Venant Theory and the calculation of static and fatigue safety factor. The theory question requires to know the basic of simple mechanical components design, working and failure mechanisms. During the exam, students are not allowed to use books, notes or digital tools. They are allowed to use a calculator. In order to consider the exam as passed students must achieve 18 out of 30 for every part. The final grade will be the average of the grades obtained in the two parts. The result of the exam is communicated on the portal, together with the date on which the students can view their work and request clarification.

Gli studenti e le studentesse con disabilità 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'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.