Broadband sound absorption device using area division
AssigneeKorea Advanced Institute of Science and Technology
InventorsWonju JEON, Hyeonbin RYOO, Jiwan KIM
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Abstract
The present invention relates to a broadband sound absorption device using area division, the device comprising: Helmholtz resonators including a neck portion and a cavity portion connected to the neck portion and having a predetermined area and thickness; and a unit sound absorber including at least one pair of the Helmholtz resonators, wherein a plurality of unit absorbers are arranged on a plane or curved surface, and the plurality of sound unit absorbers are formed to have cavity portions with different areas to minimize the thickness while enabling sound absorption for a wider band.
Claims13
A broadband sound absorption device comprising:
- a Helmholtz resonator including a neck portion and a cavity portion connected to the neck portion and having a predetermined area and thickness;
- and
- a unit sound absorber including at least a pair of the Helmholtz resonators,
- wherein the unit sound absorbers are provided in plurality and arranged on a plane or curved surface, and
- the plurality of unit sound absorbers include Helmholtz resonators having cavity portions with different areas, respectively.
Dependencies are inferred from the claim text.