US 12,249,309 B2
Damping enhancement for bubble sheet components
Song He, Troy, MI (US); Arianna T. Morales, Bloomfield Hills, MI (US); Anil K. Sachdev, Rochester Hills, MI (US); Pavan Kumar Patruni, Bengaluru (IN); and Hung-yih Isaac Du, Rochester Hills, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Jul. 26, 2022, as Appl. No. 17/873,278.
Prior Publication US 2024/0038209 A1, Feb. 1, 2024
Int. Cl. G10K 11/162 (2006.01); B60R 13/08 (2006.01)
CPC G10K 11/162 (2013.01) [B60R 13/0815 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A damping panel comprising:
a first metal portion having a first surface and a second surface opposite the first surface;
a second metal portion having a third surface and a fourth surface opposite the third surface;
a fixed region where the second surface of the first metal portion is fixed to the third surface of the second metal portion;
a non-fixed region where the second surface of the first metal portion is not fixed to the third surface of the second metal portion;
a cavity disposed at the non-fixed region and between the second surface of the first metal portion and the third surface of the second metal portion; and
a damping material disposed at least one of:
at least a portion of and less than all of the cavity on the second surface of the first metal portion; and
at least a portion of and less than all of the cavity on the third surface of the second metal portion,
wherein the fixed region includes a plurality of equally spaced fixed regions that are linear and parallel to each other,
wherein the cavity includes a plurality of portions disposed between the equally spaced fixed regions,
wherein the damping material is disposed in first ones of the portions of the cavity and the damping material is not disposed in second ones of the portions of the cavity, and
wherein the first ones of the portions of the cavity including the damping material are arranged alternatingly with the second ones of the portions of the cavity not including the damping material.