| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to aircraft engineering, namely, to aircraft air intake assembly. Structure for acoustic processing is arranged at leading edge level, in particularly, at aircraft nacelle air intake level. Note here that said structure comprises acoustically resistive substructure 30 extending from outside to inside, cellular substructure including bans 32 of cells arranged perpendicular to aerodynamic flow, and reflecting layer 34. Every said band 32 comprises first part referred to as holder that isolates sand bands and has U-like section in lengthwise direction. Its open side, opposite U-like bottom, is pressed against acoustically resistive substructure 30. Besides it has second part referred to as baffle to separate space confined by said holder and acoustically resistive substructure 32 into cells.EFFECT: acoustic processing structure adapted to complex surface of nacelle air intake surface.7 cl, 17 dwg |
