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MECHANISMS AND MECHANICAL SYSTEMS

CODE 72432
ACADEMIC YEAR 2022/2023
CREDITS
  • 11 cfu during the 2nd year of 8784 INGEGNERIA MECCANICA (L-9) - LA SPEZIA
  • SCIENTIFIC DISCIPLINARY SECTOR ING-IND/13
    LANGUAGE Italian
    TEACHING LOCATION
  • LA SPEZIA
  • SEMESTER 2° Semester
    MODULES This unit is a module of:
    TEACHING MATERIALS AULAWEB

    AIMS AND CONTENT

    AIMS AND LEARNING OUTCOMES

    The course aims at providing the theoretical and applicative knowledge about the main components of of mechanical systems.

    At the end of the course, the student will be able to:

    • select transmission components and mechanisms on the basis of the considered application
    • select these components starting from given requirements
    • select typology and perform geometrical synthesis of articulated systems and cams
    • evaluate the vibrational behaviour of simple mechanical systems

    TEACHING METHODS

    The course is organised with theoretical lessons and presentations of exercise and case studies.

    SYLLABUS/CONTENT

    Mechanics of kinematic pairs: rolling and sliding bearings; basics of hydrodynamic and hydrostatic bearings. Gear wheels: definitions, geometry; modular gears; coupling and force transmission; helical gears; gears for transmission between nonparallel axes. Power transmissions: ordinary and epicyclical gears; gear efficiency. Transmissions with chains and belts. Rope transmissions. Variators, joints, clutches, brakes. Mechanisms for general motion: motion laws, articulated systems, cams, other mechanisms. Introduction to fluid transmissions. Mechanical vibrations; natural vibrations; structural properties; forced vibrations; frequency response; force transmission. Basics of rotor dynamics; static and dynamic imbalance.

    RECOMMENDED READING/BIBLIOGRAPHY

    • Callegari Massimo, Fanghella Pietro, Pellicano Francesco, MECCANICA APPLICATA ALLE MACCHINE, Città Studi, 2013, ISBN 9788825173819

    TEACHERS AND EXAM BOARD

    Exam Board

    LUCA BRUZZONE (President)

    PIETRO FANGHELLA

    PAOLO SILVESTRI (President Substitute)

    MATTEO VEROTTI (President Substitute)

    LESSONS

    Class schedule

    All class schedules are posted on the EasyAcademy portal.

    EXAMS

    EXAM DESCRIPTION

    Oral exam with discussion of the topics.

    ASSESSMENT METHODS

    The oral exam comprises two questions abut the topics of the course. During the exam, the theoretical aspects and the application to a numerical example will be discussed, in order to assess the capability of the student of performing calculations about mechanical components. Behind the correctness of the solution, also the quality of the presentation, the usage of the correct terminology and the capacity of critical analysis will be assessed.

    Exam schedule

    Date Time Location Type Notes