In the fight against noise pollution, every detail counts. We know that a high-performance silencer depends as much on its design as on the precise characterization of the materials it’s made of.
Why is this characterization essential?
Because the acoustic efficiency of a fibrous material depends on its ability to transform sound waves into heat, thanks to mechanical and visco-inertial mechanisms. This performance depends directly on parameters such as:
– Porosity (ϕ)
– Tortuosity (α∞)
– Air passage resistivity (σ)
– Viscous (Λ) and thermal (Λ′) characteristic lengths
– Density (ρ)
– Mechanical properties of the fibrous skeleton
Collaboration with acoustic qualification specialists
Groupe Boët works with laboratories such as MATELYS – Research Lab and Almacoustic, specialists in acoustic qualification, to analyze every fiber used in our silencers. This approach enables us to :
– Accurately model acoustic behavior using advanced simulation tools (Delany-Bazley-Miki, Johnson-Champoux-Allard-Lafarge, etc.)
– Optimize the selection and quantity of sound-absorbing material depending on the sound source (engines, turbines, Roots blowers, etc.)
– Guarantee high-performance attenuation with minimum pressure drop
– Adapt each silencer to the environment in which it will be used: industry, nuclear, energy, data centers, etc.
Customization and unique performance
The result: a 100% controlled approach, from sizing to manufacturing, with a level of customization and performance unique on the market.
Fiber characterization is not a luxury. It’s the scientific foundation of high-precision acoustic engineering, serving the environmental transition.
Would you like to find out more, or discuss a solution tailored to your needs? Contact us today!
