Sound transmission prediction by 3-D elasticity theory
作者： Changzheng Huang , Steven Nutt
DOI: 10.1016/J.APACOUST.2008.09.003
关键词:
摘要: The problem of sound transmission through layered panel structures is studied with the exact theory three-dimensional (3-D) elasticity. solution to 3-D elasticity equations obtained by use Fourier spectral method. Based on this analytical solution, a transfer matrix derived that relates displacements and stresses one surface those opposite surface. then used develop solutions for reflection coefficients. Explicit, concise expressions are acoustic coefficients under general conditions anisotropic panels. Examples given both single-layer sandwich Predictions from compared available data other methods, results discussed.
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