NOISE REDUCING DEVICE HAVING AN OBLIQUELY PIERCED HONEYCOMB STRUCTURE

The invention relates to a noise reducing device (18) for an aircraft turbine engine, said device having a structure in the form of a stack of layers (20, 22, 24), such that first and second skins (22, 24) made of composite material form first and second outer layers (22, 24), these outer layers (22, 24) being substantially parallel to one another and enclosing a central layer (20). The central layer has a honeycomb structure having partitions (26) extending transversely from the first outer layer (22) to the second outer layer (24) so as to form cavities (28). The partitions (26) are made of viscoelastic material and form an acute angle of inclination (alpha) with the first and second outer layers (22, 24). 本发明涉及一种用于飞行器涡轮发动机的噪音降低装置(18)，所述装置具有呈层(20，22，24)的堆叠形式的结构，使得由复合材料制成的第一表层和第二表层(22，24)形成第一外层和第二外层(22，24)，这些外层(22，24)大致彼此平行并且包围中心层(20)。该中心层具有蜂窝状结构，该蜂窝状结构具有隔板(26)，该隔板从第一外层(22)横向地延伸到第二外层(24)，以形成空腔(28)。该隔板(26)由粘弹性材料制成，并且与第一外层和第二外层(22，24)形成为锐角的倾斜角(α)。