Research

We develop models and setups to increase our knowledge of newly manufactured acoustical porous materials. Themes we are currently working on include

• Optimisation of combined sound absorption and sound insulation performances of multi-layer systems.
• Design of multi-fonctional materials (with mainly acoustical and thermal capabilities).
• Investigation of the potential of heterogeneous porous material for the reduction of enclosed machinery noise.
• Optimisation of pore sizes, distribution and shape of mineral foams.
• Increase of acoustic properties of heterogeneous porous materials based on recycled matters.
• Sound absorption preditions and measurements in impedance tube on large anechoic wedge samples (cross-section: 600 x 600 mm², thickness up to 1 500 mm) used in anechoic rooms.
• sound absorption measurements, characterizations and modeling of systems composed of perforated plates and porous materials for building applications.
• Description of physical phenomena involved in the damping of concrete floors.

Most of our internal research works are subjected in peer-reviewed scientific journals. Check our publications for details.

Consulting

We realize various consulting tasks such as:

• the design of end user system (softwares or setups) for sound and vibration control,
• the numerical prediction of material/system performances,
• the development of dedicated softwares for vibro-acoustic prediction,
• laboratory measurements,
• in situ diagnosis.

You may have an overview of our technical know-how by visiting APMR, "the Acoustical Porous Material Recipes on the web".

Training

We provide specific and on-demand training programs related to our fields of competences:

• sound absorption or insulation measurements and predictions,
• measurement techniques for the acoustical or elastical characterization of porous media.

Visit our companion site APMR to have a larger view of our training possibilities.