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Transmission loss of double panels filled with porogranular materials
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10.1121/1.3245033
/content/asa/journal/jasa/126/6/10.1121/1.3245033
http://aip.metastore.ingenta.com/content/asa/journal/jasa/126/6/10.1121/1.3245033

Figures

Image of FIG. 1.
FIG. 1.

Sketch of a double panel coupled with a source room and a semi-infinite medium.

Image of FIG. 2.
FIG. 2.

Patch input mobility—black line: porogranular mobility; gray line: air cavity mobility (after Ref. 11)—patch 42—cavity: , , —patch size: , —Patch 42: , .

Image of FIG. 3.
FIG. 3.

Damping ratio evaluated from the patch input mobility—patch 42—cavity: , , —patch size: , —patch 42: , .

Image of FIG. 4.
FIG. 4.

Patch transfer mobility—black line: porogranular mobility; gray line: air cavity mobility (after Ref. 11)—patches 42 and 72—cavity: , , —patch size: , —patch 42: , , —patch 72: , , .

Image of FIG. 5.
FIG. 5.

Experimental setup.

Image of FIG. 6.
FIG. 6.

Comparison with experiment—black line: model; gray line: experiment—double aluminum panel (, ), 2 and thickness, separated by a cavity of filled with expanded polystyrene beads, centered on point , , —room dimensions: , , —patch size: , —source at , , , amplitude: —cut off frequency: —structural damping: 0.01.

Image of FIG. 7.
FIG. 7.

Experimental comparisons—black solid line: air cavity; gray dotted line: cavity filled with expanded polystyrene beads—double aluminum panel (, ), 2 and thickness, separated by a cavity of , centered on point , , —room dimensions: , , —source at , , —cut off frequency: .

Tables

Generic image for table
TABLE I.

Parameters of the porogranular material (after Ref. 24).

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/content/asa/journal/jasa/126/6/10.1121/1.3245033
2009-12-14
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transmission loss of double panels filled with porogranular materials
http://aip.metastore.ingenta.com/content/asa/journal/jasa/126/6/10.1121/1.3245033
10.1121/1.3245033
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