Breaking the mass law for broadband sound insulation through strongly nonlinear interactions
Xin Fang,
Tao Li,
Bin Hu
et al.
Abstract:Sound transmission through panels is governed by the well-known mass law in the mid-frequency range. This paper reveals a possibility of breaking this density-dominant law through strongly nonlinear interaction, while broadening the bandwidth for effective sound insulation. For this purpose, a basic model is established, and corresponding exact analytical methods for bifurcation and stability analyses are proposed. Influences of four typical types of nonlinear interactions on the wave insulation are analytical… Show more
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