Acoustic barrier support structure

An acoustic barrier structure can include a support structure that defines a plurality of cells, a weight attached to the support structure, and at least one resonant membrane covering one of the plurality of cells. The at least one resonant membrane can comprise at least one weight. The at least on...

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Bibliographische Detailangaben
Hauptverfasser:	CHANG CHIA-MING, HOGAN JANET M, LUDIN DOUGLAS R, MCKNIGHT GEOFFREY P, ZIENTEK THOMAS A, STEWART TIFFANY A, MONTGOMERY JOSHUA M
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE AEROPLANES AIRCRAFT AVIATION BUILDING CEILINGS CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES COSMONAUTICS FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS HELICOPTERS INSULATION OR OTHER PROTECTION OF BUILDINGS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS ROOFS SOUND-PRODUCING DEVICES TRANSPORTING WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	An acoustic barrier structure can include a support structure that defines a plurality of cells, a weight attached to the support structure, and at least one resonant membrane covering one of the plurality of cells. The at least one resonant membrane can comprise at least one weight. The at least one resonant membrane can have an anti-resonant frequency and the support structure with the weight can provide wide frequency band gaps between odd resonance modes while suppressing structure-membrane coupled modes to enable the anti-resonance of the at least one resonant membrane.