Dipartimento d'Ingegneria

28 May

ACOUSTICS LABORATORY

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The Acoustics Laboratory has many apparatus, equipment and numerical codes up to date with the advanced measuring, predictive and intervention techniques.
In this Laboratory it is possible to carry out measurements, predictions and planning in the following fields of Applied Acoustics:

1.   Environmental Acoustics:

  • acoustic climate experimental evaluation: measurement of the acoustic pressure level and statistical analysis;
  • predictive evaluations of acoustic climate and acoustic impact in open environments;
  • noise mapping;
  • acoustic zoning plans;
  • noise abatement plans and plans for the transport infrastructures noise reduction and mitigation;
  • soundscape analysis;

2.   Buildings Acoustics and Acoustic Properties of Materials:

  • coupled reverberation rooms (UNI EN ISO 10140-5): experimental measurements of airborne sound insulation of building elements (UNI EN ISO 10140-2 and UNI EN ISO 717-1), impact sound insulation by floor coverings on a heavyweight standard floor (UNI EN ISO 10140-3 and UNI EN ISO 717-2), absorption coefficient (UNI EN ISO 354) and the intrinsic characteristics of acoustic absorption of road traffic noise barriers (UNI EN 1793-1);
  • measurements of airborne sound insulation between rooms, facade elements and impact sound insulation of floors (UNI EN ISO 140-4, 5 and 7);
  • impedance tube with four channels acquisition system for the acoustic characterization of materials: measurements of the acoustic reflection and absorption coefficients, normal incidence surface impedance (UNI EN ISO 10534-2) and transmission loss;
  • determination of the dynamic stiffness of resilient materials used under floating floors (UNI EN 29052-1);
  • acoustic design, verification of passive acoustic requirements of buildings and acoustic classification of real estate units;

3.   Room Acoustics:

  • reverberation time and room criteria measurements (STI, RASTI, clarity and definition indexes);
  • room acoustics design and correction;
  • numerical codes for the predictive evaluation of acoustic quality in confined environments;

4.   Vibroacustics:

  • sound power measurements by acoustic intensimetry (UNI EN ISO 15186-1, UNI EN ISO 9614-1 and 2) and sound pressure measurements (UNI EN ISO 3741);
  • vibration measurements by accelerometers;
  • predictive evaluation of the acoustic field by finite difference and boundary element numerical codes.
Read 45153 times Last modified on Wednesday, 28 May 2014 18:35

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