Noise reduction sandwich panel, notably for aircraft...

Details Noise reduction sandwich panel, notably for aircraft... Noise reduction sandwich panel, notably for aircraft...

G - Physics

10

K

G10K 11/16 (2006.01) B32B 3/12 (2006.01) E04C 2/36 (2006.01) F02C 7/045 (2006.01) F02C 7/24 (2006.01) F02K 1/82 (2006.01) G10K 11/172 (2006.01)

Patent

CA 2359924

Noise reduction sandwich panel, notably for an aircraft turbojet engine. In order to produce a noise reduction sandwich panel having a structure with two degrees of freedom, inserted separative components (20) are placed into the hexagonal cells (16) of the unique waffle core of the panel. More specifically, the separative components (20) have an substantially circular external peripheral edge, which allows them to be easily assembled, in spite of the deformations of the walls (18) of the cells (16) due to manufacturing tolerances and to the optional forming of the waffle core. Advantageously, several separative components (20) are supported by a same positioning unit (22), which then allows relative displacement between the separative components.

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