Acoustic attenuation materials

   
   

Acoustic attenuation materials are described that comprise outer layers of a stiff material sandwiching a relatively soft elastic material therebetween, with means such as spheres, discs or wire mesh being provided within the elastic material for generating local mechanical resonances that function to absorb sound energy at tunable wavelengths.

Os materiais acústicos da atenuação são descritos que compreendem camadas exteriores de um material duro que imprensa um material elástico relativamente macio therebetween, com meios tais como esferas, discos ou engranzamento de fio que está sendo fornecido dentro do material elástico gerando os resonances mecânicos locais que funcionam para absorver a energia sadia em wavelengths ajustáveis.

 
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