Salta al contenuto principale della pagina

DYNAMICS AND CONTROL OF MECHANICAL SYSTEMS

CODE 65985
ACADEMIC YEAR 2021/2022
CREDITS
  • 6 cfu during the 3nd year of 8720 INGEGNERIA MECCANICA (L-9) - GENOVA
  • SCIENTIFIC DISCIPLINARY SECTOR ING-IND/13
    LANGUAGE Italian
    TEACHING LOCATION
  • GENOVA
  • SEMESTER 1° Semester
    TEACHING MATERIALS AULAWEB

    OVERVIEW

    The course provides the basics for the study of the dynamics of mechanical systems with linear models and of the synthesis of control systems.

    AIMS AND CONTENT

    LEARNING OUTCOMES

    The aim of the course is to provide the tools to study the dynamics of mechanical systems with linear models, single-input/single-output, introducing the concepts of open-loop and closed-loop, and the criteria to assess the behaviour of servomechanisms. The fundamentals of digital, analog and mixed automation systems are presented.

    AIMS AND LEARNING OUTCOMES

    The course aims to provide basics of the theory of linear systems, with particular reference to single-input single-output (SISO) systems. Both the analysis in time domain and in frequency domain (by means of the Laplace transform) are treated. The concepts of open loop systems and closed loop (control loop) are discussed, and case studies and examples, in particular on mechanical and mechatronic systems, are presents.

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

    • develop the dynamic model of an open loop mechanical/mechatronic system using the theory of linear systems
    • select a suitable controller transfer function, fulfilling the requirements on accuracy, readiness and stability for the considered application
    • select an off-the-shelf controller adequate to implement the selected control transfer function

    TEACHING METHODS

    Theoretical lessons integrated with examples and exercises. The students can extend the exercitations by means of MatLab.

    SYLLABUS/CONTENT

    General introduction and presentation of the feedback concept (open loop / closed loop)

    Linear systems: differential equations, natural response, forced response in transient and steady state

    Laplace transform

    Complex numbers, ratios of polynomials with real coefficients and their decomposition

    Transfer function, poles, zeroes and stability

    Frequency response

    Bode diagram and its asymptotic tracking

    Transfer function in closed loop

    Stability of closed loop systems

    Phase margin and Gain margin

    System errors and system types

    Specifications for controlled systems

    Types of regulators

    Method of the root locus

    Brief explanation of logical networks, PLC and axis control

    RECOMMENDED READING/BIBLIOGRAPHY

    The lessons are available on Aulaweb.

    It’s highly recommended to attend the course.

    For auxiliary integrations: Control Engineering – an introductory course –
    J. Wilkie, M. Johnson, R. Katebi; Palgrave, 2002, ISBN 0-333-77129-X

    TEACHERS AND EXAM BOARD

    Exam Board

    LUCA BRUZZONE (President)

    PAOLO SILVESTRI

    MATTEO VEROTTI

    PIETRO FANGHELLA (President Substitute)

    LESSONS

    Class schedule

    All class schedules are posted on the EasyAcademy portal.

    EXAMS

    EXAM DESCRIPTION

    Written and oral exam.

    Written exam: exercise about dynamics and control of mechanical systems; examples of written exams are available on Aulaweb.

    Oral exam with theoretical questions.

    ASSESSMENT METHODS

    The written exam requires the analysis of a system characterized by a given transfer function; the analysis of the open-loop system is required, and then, starting from the specifications on stability, readiness and accuracy, a control transfer function is selected, using the mathematical tools presented in the course. The oral exam allows verifying the knowledge and operative capabilities, auxiliary to the linear system theory, which can be used to pass from the mathematical formulation to the engineering implementation of the control system.

    Exam schedule

    Date Time Location Type Notes
    11/01/2022 09:00 GENOVA Scritto
    14/01/2022 09:00 GENOVA Orale
    08/02/2022 09:00 GENOVA Scritto
    11/02/2022 09:00 GENOVA Orale
    07/06/2022 09:00 GENOVA Scritto
    14/06/2022 09:00 GENOVA Orale
    12/07/2022 09:00 GENOVA Scritto
    15/07/2022 09:00 GENOVA Orale
    06/09/2022 09:00 GENOVA Scritto
    09/09/2022 09:00 GENOVA Orale