A study of sound Absorption behaviors of Fiber wood panel
Regular paper
siniat international
Tuesday 2 june, 2015, 11:20 - 11:40
0.1 London (90)
Abstract:
The absorption of most current materials can be predicted by models type TMM
(Transfert Matrix Model) using JCAL (Johnson Champenoux Allard Lafarge)
characterization including the mechanical stiffness parameter introduced by
Biot theory. This article is validating those models to a different type of
panel which is not polymers foam or typical mineral wool products. The product
is a panel made of wood fibers bound together by cement. The particularity of
those panels is to have bigger diameters and longer fibers than classical
mineral wool fibers. To improve the sound absorption, the panels are sometimes
laminated with mineral wool and in this case also the model can predict
correctly the sound absorption when it compare with Laboratory measurements.