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US 12,118,971 B2Granted
Aircraft acoustic panel
AssigneeB/E Aerospace, Inc.
InventorsJulian Winkler, Kenji Homma, Craig A. Reimann, Jeffrey M. Mendoza, Paul R. Braunwart
Life of this patent
Estimating the term…
Abstract
An acoustic supercell may comprise a facesheet having a plurality of perforations, a backplate parallel to the facesheet, a cell wall contacting the facesheet and the back plate, and a periodic structure. The supercell may be custom-tailored to meet specific acoustic wavelength absorption targets. The custom-tailored supercell may be arranged with a plurality of other custom-tailored supercells into an acoustic panel.
Claims20
An acoustic panel comprising:
- a first set of supercells, each of the first set of supercells configured for acoustic absorption;
- a supercell surrounded by the first set of supercells in a first position within the acoustic panel, the supercell including:
- a facesheet having a plurality of perforations;
- a back plate parallel to the facesheet;
- a cell wall contacting the facesheet and the back plate, wherein the cell wall is substantially orthogonal to the facesheet and the back plate;
- and
- a periodic structure having a first unit cell, the first unit cell having a first central body and a first axial tube disposed on the first central body and a second axial tube disposed on the first central body, opposite the first axial tube, each of the first axial tube and the second axial tube being in fluid communication with one another through the first central body,
- wherein the facesheet, the back plate, and the cell wall are in fluid communication with the periodic structure, wherein the facesheet, the back plate, and the cell wall are configured to enclose the periodic structure.
5 more elements
An acoustic panel, comprising:
- a plurality of supercells forming an acoustic attenuating structure, the plurality of supercells including a first supercell and a second supercell, wherein:
- the first supercell tuned to a first frequency;
- the second supercell tuned to a second frequency that is different from the first frequency, and
- each of the plurality of supercells comprises:
- a facesheet having a plurality of perforations;
- a back plate parallel to the facesheet;
- a cell wall contacting the facesheet and the back plate, wherein the cell wall is substantially orthogonal to the facesheet and the back plate;
- and
- a first periodic structure having a first unit cell, a second unit cell, a third unit cell and a fourth unit cell, wherein each of the first unit cell, the second unit cell, the third unit cell and the fourth unit cell includes a central body interconnected via a plurality of lateral tubes extending from the central body, the first periodic structure forming a first lateral layer of unit cells, wherein the facesheet, the back plate, and the cell wall is in fluid communication with the first periodic structure.
6 more elements
An acoustic panel, comprising:
- a plurality of supercells, each of the plurality of supercells comprising:
- a first periodic structure having a first unit cell, a second unit cell, a third unit cell and a fourth unit cell, wherein each of the first unit cell, the second unit cell, the third unit cell and the fourth unit cell includes a central body interconnected via a plurality of lateral tubes extending from the central body, the first periodic structure forming a first lateral layer of unit cells;
- an outer facesheet parallel to the first periodic structure;
- a back plate parallel to the outer facesheet;
- and
- a cell wall contacting the outer facesheet and the back plate, wherein the cell wall is substantially orthogonal to the outer facesheet and the back plate, the cell wall further comprising an outer facesheet wall portion, wherein the outer facesheet, the first periodic structure, and the outer facesheet wall portion define an airgap, wherein:
- the outer facesheet, the back plate, and the cell wall are configured to enclose the first periodic structure, and
- the cell wall of a first of the plurality of supercells is disposed adjacent to, and is separate from, the cell wall of a second of the plurality of supercells.
5 more elements
Dependencies are inferred from the claim text.