The Boeing Company

Garry Michael Duschl

Noel Timothy Gerken

Eric Herrera

Geoffrey Allen Butler

Justin Honshune Lan

Benjamin Julius Day

Marta Baginska Elleby

Systems and methods are provided for acoustic paneling. One embodiment is a method for fabricating an acoustic panel. The method includes receiving a sheet of thermoplastic paper, stamping/conforming the sheet into rows that each comprise a three dimensional shape, and transforming the sheet into a multi-celled core. Transforming the sheet includes identifying fold lines separating the rows, folding the sheet at the fold lines in a pleat fold, thereby uniting upper surfaces of adjacent rows and uniting lower surfaces of adjacent rows; and compressing the rows of the folded sheet together in the presence of heat, causing adjacent rows to fuse together into cells. The method further includes applying a backing sheet to the core, and applying a facesheet to a surface of the core that includes openings which direct a portion of airflow across the facesheet into the cells, resulting in acoustic control.

Acoustic paneling

An acoustic liner having a honeycomb core is fabricated by forming septa in a sheet of material, and assembling the sheet of material and the core. During the assembly process, the septa are respectively inserted as a group into cells of the core.

Septumization of honeycomb sandwiches

A method and apparatus for attenuating sound. Air, through which acoustic waves are traveling, is received within a core comprised of a plurality of cells. The sound created by the acoustic waves is attenuated using a set of channels through a number of cell interfaces between cells of the plurality of cells by allowing the air to flow between the cells of the plurality of cells through the set of channels.

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Issaquah, WA, United States of America

Garry Michael Duschl