Method for producing a panel comprising an adapted acoustically resistive layer and panel so obtained

   
   

A process for the production of a panel (9) with a fitted acoustically resistive layer, including at least one central core with porous structure bounded on one side by a structural layer covered with a porous acoustically resistive layer and, on the other side, by a total acoustical reflector, in which, successively, acoustically resistive strips are laid down to form the layer on a mold (M) shaped like the panel to be obtained, the structural layer is emplaced, the core of porous structure is emplaced, the total reflector is emplaced, then the mold (M) is withdrawn from the panel. When laying down on the mold (M) the acoustically resistive layer, the porosity of this latter is locally adapted to correspond with the characteristics of the sonic wave at the point of impact, the correlation between characteristics and impact region being previously determined by conventional acoustical techniques applied to a test panel identical to that to be produced.

Un proceso para la producción de un panel (9) con una capa acústico resistente cabida, incluyendo por lo menos una base central con la estructura porosa limitada en un lado por una capa estructural cubierta con una capa acústico resistente porosa y, en el otro lado, por un reflector acústico total, en el cual, sucesivamente, las tiras acústico resistentes se colocan para formar la capa en un molde (m) formó como el panel que se obtendrá, la capa estructural es emplaced, la base de la estructura porosa es emplaced, el reflector total es emplaced, entonces el molde (m) se retira del panel. Al colocar en el molde (m) la capa acústico resistente, la porosidad de este último localmente se adapta para corresponder con las características de la onda sonic actualmente impacto, la correlación entre las características y la región del impacto que eran determinadas previamente por técnicas acústicas convencionales se aplicó a un panel de prueba idéntico a ése que se producirá.

 
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