CONTROLLO DELLE VIBRAZIONI E DEL RUMORE

Alessandro RUGGIERO CONTROLLO DELLE VIBRAZIONI E DEL RUMORE

0612500030
DIPARTIMENTO DI INGEGNERIA CIVILE
CIVIL AND ENVIRONMENTAL ENGINEERING
2014/2015

YEAR OF COURSE 3
YEAR OF DIDACTIC SYSTEM 2012
SECONDO SEMESTRE
CFUHOURSACTIVITY
660LESSONS
Objectives
To understand the fundamental concepts of 1, 2, n DOF mechanical vibrations. To model mechanical systems and determine natural frequencies, damping ratios, and response to periodic forcing functions. To understand the fundamentals of sound propagation and of acoustical design. To devise proper instrumentation systems to characterize noise and vibrations according with the Italian laws.
Prerequisites
BASIC KNOWLEDGE OF MATHEMATICS AND PHYSICS.
Contents
EQUATION OF MOTION OF 1 2 N DOF SYSTEMS , FREE AND FORCED VIBRATIONS OF INEAR SYSTEMS; DESIGN FOR VIBRATION SUPPRESSION. VIBRATIONS TRANSDUCERS. EXPERIMENTAL VIBRATION ANALYSIS. PROPERTIES OF SOUND. SOUND LEVELS. SOUND LEVEL METER, SOUND LEVEL MEASUREMENTS.
SPECTRUM ANALYSIS - OCTAVE BAND ANALYSES. OUTDOOR NOISE MEASUREMENTS. NOISE LEVEL FROM TRAFFIC FLOW. SOFTWARE FOR THE NOISE ANALYSIS. CRITERIA FOR NOISE CONTROL.
Teaching Methods
LECTURES, SEMINARS, EXERCISES.
Verification of learning
ORAL EXAMINATION
Texts
G. DIANA, F. CHELI DINAMICA E VIBRAZIONE DEI SISTEMI- UTET
CYRIL M. HARRIS- MANUALE DI CONTROLLO DEL RUMORE- TECNICHE NUOVE – MILANO.
CYRIL M. HARRIS –SHOCK AND VIBRATIONS- MCGRAW-HILL BOOK COMPANY.
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