US 12,449,398 B2
Resonator array panel
Julian Winkler, Glastonbury, CT (US); Kenji Homma, Glastonbury, CT (US); and Jeffrey L. Cipolla, Little Compton, RI (US)
Assigned to Raytheon Company, Tewksbury, MA (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Dec. 23, 2022, as Appl. No. 18/088,280.
Prior Publication US 2024/0210354 A1, Jun. 27, 2024
Int. Cl. G01N 29/02 (2006.01); G01N 29/24 (2006.01)
CPC G01N 29/02 (2013.01) [G01N 29/24 (2013.01); G01N 2291/022 (2013.01); G01N 2291/106 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A resonator array panel comprising:
a perforated first sheet including a first sheet body, the first sheet body including a first exterior side surface and a first interior side surface, the first sheet body forming a first plurality of neck portions, each neck portion of the first plurality of neck portions surrounding and forming a first aperture extending through the first sheet body at least from the first exterior side surface to the first interior side surface;
a second sheet including a second sheet body, the second sheet body including a second exterior side surface and a second interior side surface; and
a first resonator core disposed between the perforated first sheet and the second sheet, the first resonator core including a first plurality of sidewalls, each first sidewall extending from the first interior side surface to the second interior side surface, the first plurality of sidewalls forming a first plurality of resonators between the perforated first sheet and the second sheet, the first plurality of resonators including a first resonator, the first resonator forming a first resonator cavity along a resonator centerline, the first resonator cavity in fluid communication with the first aperture of at least a first neck portion of the first plurality of neck portions, the first resonator including a first viscoelastic body disposed within the first resonator cavity,
wherein the first neck portion extends from a first neck end to a second neck end in an axial direction along the resonator centerline, the second neck end disposed within the first resonator cavity and axially spaced from the first interior side surface.