Acoustic panel with sidewall stringers

A panel for attenuating noise, comprising:

• a porous first skin;
• a second skin;
• and
• a core connected between the porous first skin and the second skin, the core including a corrugated body and a plurality of stringer bodies;
• the corrugated body including a plurality of corrugations configured from at least a plurality of baffles and a plurality of porous septums, each of the corrugations including a respective one of the baffles and a respective one of the porous septums, wherein a first of the corrugations forms a first channel that extends laterally between a first of the baffles and a first of the porous septums;
• and
• the stringer bodies spaced longitudinally along the first channel, each of the stringer bodies comprising a first sidewall disposed within the first channel and configured to fluidly isolate longitudinally adjacent portions of the first channel from one another;
• wherein a second of the corrugations forms a second channel that extends laterally between a second of the baffles and a second of the porous septums;
• wherein each of the stringer bodies comprising a second sidewall and a bridge;
• wherein the side sidewall is disposed within the second channel and configured to fluidly isolate longitudinally adjacent portions of the second channel from one another;
• and
• wherein the bridge extends laterally between and connects the first sidewall and the second sidewall.

A panel for attenuating noise, comprising:

• a porous first skin;
• a second skin;
• and
• a core connected between the porous first skin and the second skin, the core including a corrugated body and a plurality of stringer bodies;
• the corrugated body including a plurality of corrugations configured from at least a plurality of baffles and a plurality of porous septums, each of the corrugations including a respective one of the baffles and a respective one of the porous septums, wherein a first of the corrugations forms a first channel that extends laterally between a first of the baffles and a first of the porous septums;
• and
• the stringer bodies spaced longitudinally along the first channel, each of the stringer bodies comprising a first sidewall disposed within the first channel and configured to fluidly isolate longitudinally adjacent portions of the first channel from one another;
• wherein the first sidewall is configured as a multi-wall structure.

A panel for attenuating noise, comprising:

• a porous first skin;
• a second skin;
• and
• a core connected between the porous first skin and the second skin, the core including a corrugated body and a plurality of stringer bodies;
• the corrugated body including a plurality of corrugations configured from at least a plurality of baffles and a plurality of porous septums, each of the corrugations including a respective one of the baffles and a respective one of the porous septums, wherein a first of the corrugations forms a first channel that extends laterally between a first of the baffles and a first of the porous septums;
• and
• the stringer bodies spaced longitudinally along the first channel, each of the stringer bodies comprising a first sidewall disposed within the first channel and configured to fluidly isolate longitudinally adjacent portions of the first channel from one another;
• wherein each of the stringer bodies further includes a tab that projects out from the first sidewall and is attached to the corrugated body.