DYNAMICS AND DIAGNOSTICS OF MECHANICAL SYSTEMS

Alessandro RUGGIERO DYNAMICS AND DIAGNOSTICS OF MECHANICAL SYSTEMS

0622600049
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE
EQF7
MANAGEMENT ENGINEERING
2021/2022

OBBLIGATORIO
YEAR OF COURSE 1
YEAR OF DIDACTIC SYSTEM 2018
SECONDO SEMESTRE
CFUHOURSACTIVITY
660LESSONS
Objectives
THE COURSE AIMS TO PROVIDE STUDENTS WITH THE MASTER DEGREE IN MANAGEMENT ENGINEERING THE FUNDAMENTAL ELEMENTS FOR THE ANALYSIS IN OPERATION OF INDUSTRIAL MACHINES. THE COURSE AIMS TO POINT OUT THE ATTENTION ON THE CHARACTERIZATION OF THE DYNAMIC BEHAVIOR OF MACHINES AND PLANTS FOR DIAGNOSTICS.
KNOWLEDGE AND UNDERSTANDING 
TO DETERMINE A MATHEMATICAL MODEL OF A MECHANICAL SYSTEM AND ITS SUBPARTS, CONSIDERING WHETHER TO ADOPT SIMPLIFYING ASSUMPTIONS AND AFFINITY.
APPLYING KNOWLEDGE AND UNDERSTANDING
KNOWING HOW TO SELECT THE MOST APPROPRIATE DIAGNOSTIC METHOD FOR THE SPECIFIC APPLICATION.
MAKING JUDGMENTS (MAKING JUDGMENTS)
UNDERSTAND THE WORKING PRINCIPLE OF MECHANICAL SYSTEMS IN SIMPLE OR INTEGRATED CONTEXTS.
COMMUNICATION SKILLS (COMMUNICATION SKILLS)
KNOWING HOW TO WORK IN TEAMS AND TO PRESENT THE RESULTS OBTAINED.
ABILITY TO LEARN (LEARNING SKILLS)
KNOWING HOW TO APPLY THE KNOWLEDGE TO DIFFERENT CONTEXTS.
Prerequisites
IT'S REQUIRED BASIC KNOWLEDGE IN PHYSICS, MATHEMATICS AND DYNAMICAL SYSTEMS.
Contents
DYNAMICAL SYSTEMS AND DYNAMICS FOR MACHINES (22-20)
DYNAMICAL SYSTEMS WITH ONE DEGREE OF FREEDOM AND FREE AND FORCED VIBRATIONS.
2N DEGREES OF FREEDOM SYSTEMS. EIGENVALUES AND EIGENVECTORS. MODAL APPROACH. FREE AND FORCED VIBRATIONS. DYNAMICS  COUPLED MACHINES: ABSOLUTE REGIME, PERIODIC REGIME, DESIGNING A FLYWHEEL. CRITICAL SPEEDS OF ROTORS ON RIGID AND ELASTIC BEARINGS. THE REVERSE WHIRLING. DYNAMICS OF RIGID ROTORS: THE EULER EQUATIONS. DYNAMICS OF RIGID ROTORS IN THE PRESENCE OF GYROSCOPIC INERTIA EFFECTS. DYNAMIC AND ROTOR BALANCING. DIAGNOSTIC TECHNIQUES FOR ROLLING BEARINGS, PLAIN, FOR THE ROTOR UNBALANCE, DIAGNOSTIC ANALYSIS OF EXHAUSTED LUBRICANTS (6).

LINEAR SYSTEMS OF THE FIRST ORDER AND SECOND ORDER: RESPONSE TO INPUT STEP AND SINUSOIDAL; PSE AND GENERIC INPUTS (CONVOLUTION) AND PERIODICALS. SYSTEMS APPLICATION II ORDER SINUSOIDAL INPUT: THE PIEZOELECTRIC ACCELEROMETER. EQUATION OF MOTION OF THE SEISMIC MASS AND PROPORTIONALITY VOLTAGE AND CHARGE VS. AMPLITUDE ACCELERATION (MEASURING). HARMONIC ANALYSIS AND HARMONIC ANALYSIS OF DATA FILES. ATTENUATION / GAIN; OCTAVES, THIRD OCTAVE, OCTAVE CENTERS
PROCESSING NUMERICAL MEASURES OF TIME-VARYING MAGNITUDES; SAMPLING AND REPLICAS, ALIASING AND SHANNON THEOREM; NYQUIST FREQUENCY AND ANALOG PREFILTERING;
EXAMPLE: REAL FILTER WITH FIRST ORDER LINEAR SYSTEM; PASSBAND AND ATTENUATION OF -3 DB, A/D CONVERSION AND SAMPLE LOG 12BIT RESOLUTION AND AMPLITUDE (12)
Teaching Methods
LESSONS, EXERCISES, COMPUTER SIMULATIONS, LAB ACTIVITIES. COURSE IN ITALIAN.
Verification of learning
ORAL TEST AIMED AT VERIFYING THE UNDERSTANDING OF THE SCHEMATIZATION AND DYNAMIC MODELING OF MECHANICAL SYSTEMS, AS WELL AS TO THE UNDERSTANDING OF THE DIAGNOSTIC PRINCIPLES OF MECHANICAL COMPONENTS.
THE EVALUATION WILL BE EXPRESSED IN THIRTIETHS. THE FINAL EVALUATION IS OBTAINED AS THE AVERAGE OF THE PARTIAL EVALUATIONS.
THE MINIMUM ASSESSMENT LEVEL (18) IS ATTRIBUTED WHEN THE STUDENT HAS A FRAGMENTED KNOWLEDGE OF THE THEORETICAL CONTENTS AND SHOWS A LIMITED ABILITY TO USE THEM IN THE CONTEXT OF STUDY.
THE MAXIMUM LEVEL (30) IS ATTRIBUTED WHEN THE STUDENT DEMONSTRATES A COMPLETE AND IN-DEPTH KNOWLEDGE OF THE METHODOLOGIES AND TOOLS AND HAS A REMARKABLE ABILITY TO USE THEM IN THE CONTEXT OF STUDY.
PRAISE IS AWARDED WHEN THE CANDIDATE DEMONSTRATES SIGNIFICANT MASTERY OF THE METHODOLOGIES AND TOOLS AND SHOWS REMARKABLE LANGUAGE PROPERTIES AND AUTONOMOUS PROCESSING CAPACITY EVEN IN CONTEXTS OTHER THAN THOSE PROPOSED BY THE TEACHER.
Texts
V. D'AGOSTINO "FONDAMENTI DI MECCANICA APPLICATA ALLE MACCHINE"  MAGGIOLI EDITORE, 2013 
GUIDO, RA, AND L. DELLA PIETRA. "LEZIONI DI MECCANICA APPLICATA ALLE MACCHINE." 1998. 
 GDIANA F. RESTA "CONTROLLO DI SISTEMI MECCANICI" EDIZIONI POLIPRESS, 2007 
DIANA, GIORGIO, AND FEDERICO CHELI. DINAMICA E VIBRAZIONI DEI SISTEMI MECCANICI: SECONDO VOLUME. UTET LIBRERIA, 1993.
More Information
SUBJECT DELIVERED IN ITALIAN.
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