ACOUSTIC LINER WITH NON-UNIFORM VOLUMETRIC DISTRIBUTION

Disclosed is an acoustic liner (100) for a gas turbine engine (20), having: a face sheet (110); a first plurality of resonator chamber cavities, distributed non-uniformly against the face sheet, the first plurality of resonator chamber cavities defining a first aggregated volume that is configured to target noise attenuation at a first frequency, the first plurality of resonator chamber cavities include first and second resonator chamber cavities (130, 140) fluidly coupled to each other, which have different configurations with respect to each other; and a second plurality of resonator chamber cavities, distributed non-uniformly against the face sheet, the second plurality of resonator chamber cavities define a second aggregated volume that differs from the first aggregated volume and is configured to target noise attenuation at a second frequency, the second plurality of resonator chamber cavities include third and fourth resonator chamber cavities (160, 170) fluidly coupled to each other, which have different configurations with respect to each other.