FIELD: aviation.
SUBSTANCE: invention relates to sound-absorbing panel (1) for a gondola of a turbojet engine of an aircraft and a method for the manufacture of this panel. Panel (1) contains central cellular core (2) located between front acoustic sheathing (3) containing perforations (4) and rear sheathing (6), while panel (1) contains front structure (7) with first mesh (9) of cellular walls and rear structure (8) with second mesh (10) of cellular walls. Front (7) and rear (8) structures are located opposite to each other so that mesh (9, 10) of cellular walls of one structure (7, 8) is separated with gap d from sheathing (3, 6) of another structure (7, 8), facing it.
EFFECT: present invention is aimed at elimination of disadvantages by creation of a sound-absorbing panel for a gondola of a turbojet engine of an aircraft, which is simpler in installation and repairment, more rigid, and in which a useful acoustic surface is optimized.
10 cl, 13 dwg
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Authors
Dates
2023-01-13—Published
2019-05-24—Filed