Active Control of Membrane-Type Acoustic Metamaterial
using a sound attenuation panel for sound attenuation the sound attenuation panel using electromagnetic or electrostatic response component to modify the resonance. The sound attenuation panel has a sound transparent planar hard frame the hard frame is divided into a plurality of independent units for attenuating sound. In one configuration each cell has a mass fixed to the film. the plane geometry of each of the independent unit; the flexible and mass block of the film establishes a fundamental resonance frequency for sound attenuation. The electromagnetic or electrostatic response assembly is configured to modify the resonant frequency of each cell.
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CN, HK, US
Invention Code:
IP.PA.00701
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okt@ust.hk
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Category:
TAP - Advanced Materials
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