BUILDING, ENVIRONMENTAL AND ROOM ACOUSTICS
Academic year and teacher
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- Versione italiana
- Academic year
- 2019/2020
- Teacher
- PATRIZIO FAUSTI
- Credits
- 9
- Didactic period
- Primo Semestre
- SSD
- ING-IND/11
Training objectives
- Educational objectives
The course aims to supply students with the fundamentals regarding the nature of noise and the ways in which it can be controlled in the environment and in buildings. It aims to enable students to carry out activities in applied acoustics that can be correlated with professional and research aspects, in particular in the field of building, environmental and architectural acoustics, work environments and legal issues. The objective is to perform numerical and instrumental evaluations, acquiring the ability to carry out acoustic simulations and measurements, as well as practical knowledge related to the correct installation of building materials and systems.
The course is highly professionalizing. Prerequisites
- Prerequisites
Basic knowledge of the fundamentals of acoustics and sound propagation in free field and in confined environments:
- sound sources and sound reception;
- the acoustic parameters used in practice;
- sound propagation in the external environment;
- acoustics in the indoor spaces, reverberation and sound levels;
- sound insulation, absorption and reflection;
- the measurement of sound. Course programme
- Course contents
- Instrumentation and measurement techniques
Review of acoustic quantities, sound levels, spectra, weighting curves, sound propagation. Sound level meters and frequency analysis. Sound intensity and sound power measurements. Reverberation time measurement.
- Practical exercises on the use of sound level meters and acquisition software
Measurements using sound level meters and analysers, data processing of noise measurements, measurements of acoustic intensity and sound power, measurements of impulse response and reverberation time in laboratory or on site.
- Sound insulation requirements for buildings
Review of sound insulation. Legislation and standards in building acoustics. Sound absorbing materials. The physical-mechanical properties correlated with acoustic performance. Theoretical models.
Sound insulation and impact noise properties of materials and building elements. Noise emission of sanitary and air conditioning systems. Prediction and evaluation of the acoustic properties of structures in situ. European regulations. Acoustic radiation.
- Practical experiences on the use of software for the design of acoustic requirements of buildings and experimental measurements in buildings
Use of prediction models in building acoustics. Measurements of airborne and facade sound insulation, measurements of impact noise level, measurement of noise emitted by continuous and discontinuous systems.
- Architectural acoustics and material properties
Review of sound absorption and reflection, acoustic fields. The paradigm of acoustic communication in theatres. Impulse response and acoustic parameters. Prediction models. Case studies.
Measurement of impulse response, calculation of acoustic parameters. Measurements of resistivity, impedance absorption.
- National and regional legislation, municipal regulation, European directives; the noise of transportation infrastructures; criteria for acoustics planning, control of noise emissions
Environmental noise legislation in Italy. European Directives. Noise emissions of transportation infrastructures. Simple methods for prediction and reducing noise from road and rail traffic. Prediction methods for industrial noise. Calculation models on PC. Procedures for the environmental noise impact of infrastructures. Strategic maps and action plans. Case studies.
- Practical exercises on the use of software for sound propagation and noise mapping
Experiences on noise prediction in the outdoor environment, modelling of industrial, road and railway sources, design of acoustic barriers and noise mapping.
- Noise and vibration in the workplace
Evaluation of the risk of noise and vibrations in the workplace. Calculation of daily and weekly noise exposure levels. Characteristics of vibration measurement equipment; hand, arm and whole body vibration measurements, data analysis.
- Acoustics in legal issues
Description of activities aimed at technical consultancy in the judicial field. Problems related to noise that are normally encountered in the various areas of civil disputes. Disputes concerning vibrations. Didactic methods
- Teaching methods
Teaching includes lectures, practical exercises and measurements in the laboratory and on site.
As part of individual study, in addition to theoretical study, the students will prepare reports and technical reports on the exercises carried out, carry out a certain number of hours of exercises using both commercial software made available and laboratory equipment, working both in small groups and individually, with the support and assistance of teaching tutors. Learning assessment procedures
- Oral examination with discussion of practical exercises and measurements carried out.
Reference texts
- Teaching material
Lecture notes distributed by the teacher.
Lecture notes of the School of Acoustics of the University of Ferrara.
Booklet "Building Acoustics", author Patrizio Fausti, published by Rockwool, downloadable from Rockwool website.
INAIL manuals and brochures.
Course readings
Manuale di Acustica, a cura di R. Spagnolo, UTET, 2001.
E.Cirillo, Acustica Applicata, Mc Graw-Hill, Milano (1997).
