Unit DESIGN AND CONSTRUCTION OF MACHINES

Course
Mechanical engineering
Study-unit Code
70367014
Curriculum
Gestionale
Teacher
Filippo Cianetti
CFU
13
Course Regulation
Coorte 2020
Offered
2022/23
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa integrata

MACHINE DESIGN

Code 70098209
CFU 9
Teacher Filippo Cianetti
Teachers
  • Filippo Cianetti
Hours
  • 81 ore - Filippo Cianetti
Learning activities Caratterizzante
Area Ingegneria meccanica
Academic discipline ING-IND/14
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents The course of "Machine Design" is proposed to apply the methods of structural design to machines and components. In this module some general issues relating to the strength of mechanical components under static and cyclic conditions will be studied. Also some mechanical components will be analysed.
Reference texts R.C. Juvinall, K.M. Marshek, Fondamenti di Costruzione di Macchine, Edizioni CittàStudi, Milano 2017
A. Bernasconi, M. Filippini, M. Giglio, A. Lo Conte, G. Petrone, M. Sangirardi, Fondamenti di Costruzione di Macchine, Mc Graw-Hill, Milano 2002
Educational objectives The student must demonstrate that to have the knowledge necessary to develop the structural design of machines and their components, in relation to stresses and environmental operating situations. In particular, it will have to demonstrate knowledge and ability to apply mechanical strength evaluation techniques under static and cyclic stresses. In addition to the knowledge of the main types of machine elements, it will be necessary to demonstrate and know how to apply the calculation procedures of some of the major mechanical components.
Prerequisites It is requested to pass the test of "MECCANICA TEORICA E APPLICATA" and "STATISTICA E RICERCA OPERATIVA"
Teaching methods Frontal lessons
Other information -
Learning verification modality Written and Oral examination
Extended program Introduction. Aspects of the course and articulation.

Statistical analysis. Introduction to the concepts of probability and reliability. Definition of the safety factor.

Materials. Characteristics and properties of metallic materials.

Elements of static. Isostatic structures. Shear forces and bending moments in beams. Stress state of beams.
Hertzian contact.
Static loading conditions. Stress concentration. Failure theories for ductile and brittle materials.

Fatigue loading conditions. Fatigue behavior of materials. Modifying factors. Reliability and fatigue. High cycles fatigueand machine design. Cumulation of damage and load spectra. Hertzian fatigue.

Mechanical gears. Tooth fatigue design. Tooth wear design.

Nonpermanents joints. Setscrwes, keys and pins. splined coupling joint. Tension joints.

Bearings. Types and design of rolling bearings. Types and design of sliding bearings.

Shafts. Design criteria of shafts

MEASURES AND QUALITY CONTROL IN INDUSTRIAL PRODUCTION

Code 70A00304
CFU 4
Teacher Roberto Marsili
Teachers
  • Roberto Marsili
Hours
  • 36 ore - Roberto Marsili
Learning activities Caratterizzante
Area Ingegneria meccanica
Academic discipline ING-IND/12
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Generalized configurations and functional descriptions of measuring instruments.
Generalized performance characteristics of instruments.
Measuring devices.
Force torque and shaft power measurements.
Pressure and sound measurement.
Flow measurement.
Temperature and heat-flus measurement.
Reference texts E. O. Doebelin, Strumenti e metodi di misura, Ed. Mc Graw-Hill.
Gianluca Rossi, Misure meccaniche e termiche, basi teoriche e principali sensori e strumenti, ? 37,00, 2010 pp. 344, ISBN 9788843053612
Norma UNI 4546 misure e strumentazioni;
Norma UNI-CEI 13005 Guida all'espressione dell' incertezza di misura;
Norma CNR-UNI 10003 Sistema Internazionale di unità (SI)
Educational objectives Understanding the mode of operation and specifications of instrumentation for measurement and control of mechanical and thermal systems. evaluate the measurement uncertainty and its main causes in applications.
Prerequisites In order to be able to understand end apply the majority of the techniques described within the Course, you must have successfully passed the Analisi Matematica generale, Fisica generale, Elettrotecnica.
Moreover, other topics matter of the module require the ability to so/ve simple integrals, differential equations, Taylor and Fourier series and to develop functions of two variables in series.
Knowledge of these techniques represents a mandatory prerequisite for students planning to follow this course with profit.
Teaching methods The course is organized as follows:
lectures on ali subjects of the course;
Laboratory exercises
Other information Please see

http://www.unipg.it/didattica/corsi-di-laurea/attivita-didattiche-2015-16/index.php?anno=2015&controller=didattica&layout=insegnamento&insegnamento=4783

https://www.unistudium.unipg.it/unistudium/
Learning verification modality The exam consists of an oral test and/or a written test.
Oral test consists on an interview of about 45 minutes long aiming to ascertain the knowledge level and the understanding capability acquired by the student on theoretical and methodological contents as indicated on the program.
The oral exam will also test the student communication skill and his autonomy in the organization and exposure of the theoretical topics.
Extended program Type of applications of measurement instrumentation.
Generalized configurations and functional descriptions of measuring instruments.
Generalized performance characteristics of instruments.
Measuring devices.
Force torque and shaft power measurements.
Pressure and sound measurement.
Flow measurement.
Temperature and heat-flus measurement.
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