italian version

Aims :

The course introduces to the knowledge of the ways to evaluate and control the environmental noise impact from industrial settlements, in order to make the students aware of the themes about the quality improvement and of the living the land in a better way.

Topics :

Introduction to the acoustics. Ear physiology. Spectral analysis of sound and noise. Phon and isophonic curves. Equivalent continuous A, B, C, D- weighted sound pressure level. Noise exposure. Materials and structures sound absorption. Standing waves. Acoustic insulation. Ideal and real insulation power of walls and casings. Noise exposure inside industrial settlements and environment. Noise of the centrifugal fans, axial flow fans, mixed flow fans and some other plants. Noise from gas turbine sets. Noise radiated into and along a duct. Attenuation of the sound during its outdoors propagation. Indoors and outdoors noise control. Autostanding fixed and mobile screening obstacle. Barrier. Cabs. Dissipative and reactive mufflers. Environmental noise at a given distance for a variety of sources. Structures vibrations. Vibro-acoustic transfer properties of the structures. Exposure to the vibrations. Accelerometer. Resilient materials and components. Coil spring. Floating floors. Methods of valuation of environmental noise. Measurements. Normative.

Textbooks :

- L.L.Beranek, Music, Acoustic and Architecture, New York, Wiley, 1962.
- L.L.Beranek, I. L. Vér, Noise and Vibration Control Engineering, John Wiley & Sons, Inc. N.Y., 1992.
- I.Barducci, Acustica applicata, Roma, Ed.Sistema, 1975.
- I. Sharland, L’attenuazione del rumore, Ed. Woods Italiana,1980
- ISPESL, Conferenza dei Presidenti delle Regioni e delle Province Autonome, Manuale di buona pratica, “Metodologie e interventi tecnici per la riduzione del rumore negli ambienti di lavoro”, versione approvata il 26.12.2004.

Exam :

Oral examination.

Tutorial Session :

Every Tuesday 10.00-12.00.