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.

Exam: Optional oral exam; Computer-based written test using the PoliTo platform;

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. Students are required to follow the rules described in "Guidelines for taking online exams, c) written exams with open or closed answers via PC by using the Polito exam platform integrated with proctoring tools (Respondus)". The exam is composed by a written part and by an oral one, the latter being at the sole discretion of the Exam Commission (see the ‘Oral exam’ section below). APPLIED MECHANICS 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. Written test duration is 1h. The maximum score is 30/30. The AM exam is not passed if the score from the written test is strictly lower than 18/30. MACHINE DESIGN The Machine Design part is composed of two exercises and one theory question. The exercises require the ability of calculating 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. Written test duration is 1h. The maximum score is 30/30. The MD exam is not passed if the score from the written test is strictly lower than 18/30. ------------------------------------------------------------------------------------------------ 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 mark of the test is given by the average between the two parts The candidate can withdraw from the written test by leaving it blank. Once the exam will have been submitted and corrected by the commission, the result will be registered either with a positive mark or with a failure. 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. -------------------------------------------------------------------------------------------------- Oral exam The opportunity/possibility to sit for the oral test is at the sole discretion of the Exam Commission, which reserves its right to call a student for an oral test, independently on the outcome from the written exam. In such a case, the final mark will be an average between the three tests. The commission will also consider the requests from the students to sit for the oral.

Exam: Written test; Optional oral exam; Computer-based written test using the PoliTo platform;

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. Students taking the onsite and online exam will take the same exam, with the same scheduling. On line students are required to follow the rules described in "Guidelines for taking online exams, c) written exams with open or closed answers via PC by using the Polito exam platform integrated with proctoring tools (Respondus)". The exam is composed by a written part and by an oral one, the latter being at the sole discretion of the Exam Commission (see the ‘Oral exam’ section below). APPLIED MECHANICS 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. Written test duration is 1h. The maximum score is 30/30. The AM exam is not passed if the score from the written test is strictly lower than 18/30. MACHINE DESIGN The Machine Design part is composed of two exercises and one theory question. The exercises require the ability of calculating 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. Written test duration is 1h. The maximum score is 30/30. The MD exam is not passed if the score from the written test is strictly lower than 18/30. ------------------------------------------------------------------------------------------------ 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 mark of the test is given by the average between the two parts The candidate can withdraw from the written test by leaving it blank. Once the exam will have been submitted and corrected by the commission, the result will be registered either with a positive mark or with a failure. 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. -------------------------------------------------------------------------------------------------- Oral exam The opportunity/possibility to sit for the oral test is at the sole discretion of the Exam Commission, which reserves its right to call a student for an oral test, independently on the outcome from the written exam. In such a case, the final mark will be an average between the three tests. The commission will also consider the requests from the students to sit for the oral.