Noise attenuating wall element

Details Noise attenuating wall element Noise attenuating wall element

E - Fixed Constructions

04

B

E04B 1/84 (2006.01) B32B 3/12 (2006.01) B64C 1/12 (2006.01) B64C 1/40 (2006.01) E04C 2/24 (2006.01)

Patent

CA 2225463

A wall element has a noise attenuating characteristic and is suitable for use as an aircraft cabin interior panel element that is mounted directly on the aircraft fuselage structure. The wall element includes a rigid lightweight composite panel having a core arranged between two cover layers, and an outer layer arranged adjacent and spaced away from one of the cover layers. The core and the cover layers of the composite panel are air permeable in a direction through the thickness of the panel, while the outer layer is non-air-permeable and is relatively soft and flexible. The outer layer is connected to the composite panel preferably only along the perimeter edge thereof. The non-permeable outer layer faces the aircraft cabin space, while the permeable composite panel is mounted on the fuselage structure. With this structure, acoustic vibrations of the fuselage, to which the wall element is attached, are attenuated and do not result in substantial noise radiation from the outer layer into the cabin.

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