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US 2026/0105903 A1Published application
Metabarrier for sound mitigation
AssigneeTemple University of the Commonwealth System of Higher Education
InventorsHAIJUN Liu, SUBHRODEEP SUSHANTA RAY
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Abstract
A sound barrier device is described. The device includes a first panel having a plurality of perforations, a second panel with no perforations, and a connector connecting the first and second panels and forming an air gap between the first and second panels.
Claims22
A sound barrier device, comprising:
- a first panel having a plurality of perforations, wherein the first panel has a perforation ratio of between 1.0% to 3.2%;
- a second panel with no perforations;
- and
- a connector connecting the first and second panels and forming an air gap between the first and second panels, wherein the air gap has a thickness of between 5-25 mm.
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A sound barrier device, comprising:
- a first panel having a plurality of perforations, wherein the first panel has a perforation ratio of between 1.2% to 2.1%, wherein each of the perforations have an average diameter greater than 0.2 mm;
- a second panel with no perforations;
- and
- a connector connecting the first and second panels and forming an air gap between the first and second panels, wherein the air gap has a thickness of between 10-20 mm;
- wherein the first and second panel comprise wood or plastic;
- wherein the perforation ratio, the average diameter of the perforations, and the air gap provide an absorption coefficient greater than 0.9 for frequencies between 900 to 1200 Hz.
3 more elements
Dependencies are inferred from the claim text.