2. Professors
  3. Teaching

MECHANICAL VIBRATIONS

Adolfo SENATORE MECHANICAL VIBRATIONS

0622300040
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE
EQF7
MECHANICAL ENGINEERING
2019/2020

OBBLIGATORIO
YEAR OF COURSE 1
YEAR OF DIDACTIC SYSTEM 2018
SECONDO SEMESTRE
CFUHOURSACTIVITY
990LESSONS
ADOLFO SENATORE T Curriculum
Objectives
THE COURSE AIMS AT PROVIDING TO THE STUDENTS OF THE MASTER DEGREE IN MECHANICAL ENGINEERING THEORETICAL TOOLS FOCUSING ON VIBRATION PHENOMENA IN MECHANICAL DEVICES, AUTOMOTIVE ENVIRONMENT, INDUSTRIAL PLANTS, AUTOMATIC SYSTEMS. KNOWLEDGE AND UNDERSTANDING: THE COURSE CONTENTS COVER VIBRATIONS OF DISCRETE OR LUMPED SYSTEMS WITH INERTIA, FLEXIBILITY AND DAMPING IDENTIFIED AS SEPARATE ENTITIES, AS WELL AS CONTINUOUS SYSTEMS WHERE INERTIA ELEMENT POSSESSES OWN FLEXIBILITY AND DAMPING PROPERTIES. ABOUT THE ABILITY TO APPLY KNOWLEDGE AND UNDERSTANDING, THE COURSE WILL DEAL WITH COMMON VIBRATIONAL BEHAVIOUR OF INDUSTRIAL ENVIRONMENT CONCERNING ROTATING MACHINERY, MACHINE TOOLS, RECIPROCATING ENGINES, ETC. AS COMMON ITEMS OF THE DEGREE PROGRAM, STUDIED THROUGH LINEAR MODELING, SMALL OSCILLATIONS, PERIODIC LOADING, AND ARBITRARY EXCITATION.
"MECHANICAL VIBRATIONS" ALSO COVERS LAPLACE'S TRANSFORM AND TRANSFER FUNCTION AS USUAL LANGUAGE OF CONTROL SYSTEMS AREA, FREQUENCY RESPONSE FUNCTION AND ITS CHARACTERISTIC REPRESENTATIONS FOR STEADY-STATE RESPONSE, AND LAGRANGE'S FORMULATION OF THE MOTION EQUATIONS AS WELL.
AUTONOMY OF JUDGMENT: THE COURSE "MECHANICAL VIBRATIONS" IS ALSO DESIGNED TO STIMULATE AUTONOMOUS JUDGEMENT SKILL FOR COMPARING ENGINEERING SOLUTIONS IN THE FRAMEWORK OF DESIGN TECHNIQUES THROUGH SOLID AND SHARED CRITERIA.
COMMUNICATIVE SKILLS: ACCORDING TO THE EXAMINATION METHOD EXPLAINED BELOW, STUDENTS ARE ASKED TO ILLUSTRATE A PROBLEM RELATED TO VIBRATIONS AND DISCUSS THE MATHEMATICAL MODELLING UNDER THE PROPER ASSUMPTIONS AND LIMITATIONS.
LEARNING ABILITY: BE ABLE TO APPLY AND UPDATE ACQUIRED KNOWLEDGE IN CONTEXTS DIFFERENT FROM THOSE PRESENTED AT CLASSES.
Prerequisites
COMMON SKILLS OF THE B.SC. DEGREE IN INDUSTRIAL ENGINEERING AREA IN THE FOLLOWING FIELDS: RATIONAL MECHANICS, DYNAMICS OF MACHINES, DIFFERENTIAL EQUATIONS AND LINEAR ALGEBRA.
Contents
DISCRETE SYSTEMS. FREE MOTION, ARBITRARY EXCITATION AND CONVOLUTION. TRANSIENT RESPONSE BY WAY OF NUMERICAL INTEGRATION. NON-LINEAR CASES. STEADY-STATE FORCED VIBRATIONS AND DYNAMIC AMPLIFICATION FACTOR. DAMPING ESTIMATION, QUALITY FACTOR. HARMONIC ANALYSIS FROM MEASURED DATA. LAPLACE'S TRANSFORM, TRANSFER FUNCTION. FREQUENCY RESPONSE FUNCTION; BODE'S AND NYQUIST'S PLOTS. ENERGY AND RAYLEIGH’S METHODS (LECT. 18/EXERC. 8/LAB. 3).
2DOF SYSTEM: FREE VIBRATIONS, ROOTS, SEMIDEFINITE SYSTEMS. EIGENVALUES-EIGENVECTORS PROBLEM. 2DOF BAR. FORCED VIBRATIONS: ABSORBER, CENTRIFUGAL PENDULUM, NEUTRALIZER. TORSIONAL VIBRATIONS AND DUAL-MASS FLYWHEEL. LAGRANGE'S FORMULATION.
MULTI-DEGREE OF FREEDOM SYSTEMS. ORTHOGONALITY OF EIGENVECTORS AND EXPANSION THEOREM. MODAL ANALYSIS, FORCED VIBRATIONS, PSEUDOMODAL APPROACH (LECT. 18/EXERC. 8/LAB. 4).
CONTINUOUS MEDIA THROUGH LUMPED-MASS SYSTEMS. MODAL TESTING: THEORY, METHODS, TOOLS.
FREE VIBRATIONS OF CONTINUOUS SYSTEMS: STRING, ROD, BEAM, SHAFT, MEMBRANE (LECT. 18/EXERC. 10/LAB. 3).
Teaching Methods
LECTURES, EXERCISES AND SIMULATIONS. LABORATORY APPLICATIONS.
ENGLISH TAUGHT COURSE.
Verification of learning
ORAL EXAMINATION WITH QUESTIONS ON THEORETICAL TOPICS AND PROBLEMS TO BE SOLVED. ASSESSMENT OF THE ORAL TEST ASSIGNS POSITIVE MARK TO: CLARITY OF THE PROPOSED SOLUTION, RIGHTNESS OF MATHEMATICAL MODEL INVOLVED IN THE ANALYSIS OF THE DYNAMIC SYSTEM, GENUINE UNDERSTANDING FROM THE PHYSICAL POINT OF VIEW OF ALL THE IMPLICATIONS COMING FROM THE STUDIED VIBRATIONAL PHENOMENA.
Texts
DEBABRATA NAG, "MECHANICAL VIBRATIONS" WILEY INDIA PRIVATE LIMITED, ISBN 9788126530908.
NOTES FROM CLASSES.
More Information
ENGLISH TAUGHT COURSE.
  BETA VERSION Data source ESSE3 [Ultima Sincronizzazione: 2021-02-19]