Interior panel having micro-perforated holes for interior of aircraft and method for making same

Abstract

Interior panels for interiors of aircraft, aircraft, and methods from making interior panels for interiors of aircraft are provided. In one example, the interior panel includes a first relatively hard layer having a first surface that is configured to receive noise from the interior and a second surface that is disposed opposite the first surface. The first relatively hard layer has micro-perforated holes that are formed therethrough and that are spaced apart from each other. A second layer is disposed adjacent to the second surface and has a plurality of openings that are in fluid communication with the plurality of micro-perforated holes. A third layer is disposed adjacent to the second layer. The first relatively hard layer, the second layer, and the third layer are cooperatively configured to attenuate the noise.

Description

technical field [0001] The technical field relates generally to interior panels of aircraft, and more particularly, to interior panels with microperforations (eg, for noise attenuation in aircraft interiors), aircraft including such interior panels, and methods for manufacturing such interior panels. Background technique [0002] Many aircraft have an interior that includes one or more areas (eg, cabin area, lavatory area, galley area, etc.) for passengers and / or other occupants. These interior areas are generally designed with passenger comfort in mind and may include and / or be separated by interior panels forming partitions, decorative trim and / or decorative surfaces, furniture items, Such as a part of a chair, seating unit, table, wall cabinet and / or drawer, storage box and / or compartment, work surface, side cabinet (credenza), etc. [0003] The interior of an aircraft can often be relatively noisy, especially during taxiing, takeoff, flight and landing. While on an air...

AI Technical Summary

Problems solved by technology

[0004] Alas, active noise reduction devices can be relatively expensive and / or add additional weight to the aircraft

Furthermore, passive noise reduction devices located in the fuselage walls and covered by interior panels and / or other hard interior surfaces not only add additional weight to the aircraft, but are also relatively ineffective at attenuating noise generated This type of noise is mainly reflected back into the interior by the hard interior walls and does not interact with passive noise reduction devices within the walls

Images