| 摘要 |
A multilayer board is provided for acoustic insulation and to a method for producing said board. In order to reduce sound emission and at the same time improve stability, a multilayer board for acoustic insulation is proposed that includes, but is not limited to a core sheet, a first covering layer and a second covering layer. At least one of the two covering layers is of a closed design. The core sheet is arranged between the first covering layer and the second covering layer and is firmly connected in a planar fashion to the covering layers. Furthermore, the core sheet comprises slits that extend within the core sheet in the direction of the core sheet thickness, which slits reduce the shear stiffness of the board and thus ensure an improved acoustic insulation effect. On both sides the core sheet comprises continuous edge zones, which extend parallel to the covering layers, in order to, together with the covering layers, ensure the best possible stability of the board. The invention in particular also relates to an aircraft with an interior lining formed by panels that comprise the multilayer boards according to the invention in order to provide acoustic insulation.
|
