School of Mechanical Engineering, Ningxia University, 750021 Yinchuan, People's Republic of China.
J Acoust Soc Am. 2012 Sep;132(3):1436-49. doi: 10.1121/1.4739439.
On the basis of the work of Wilson et al. [J. Acoust. Soc. Am. 84, 350-359 (1988)], a more exact numerical approach was constructed for predicting the nonlinear sound propagation and absorption properties of rigid porous media at high sound pressure levels. The numerical solution was validated by the experimental results for sintered fibrous porous steel samples and its predictions were compared with the numerical solution of Wilson et al. An approximate analytical solution was further put forward for the normalized surface acoustic admittance of rigid air-saturated porous materials with infinite thickness, based on the wave perturbation method developed by Lambert and McIntosh [J. Acoust. Soc. Am. 88, 1950-1959 (1990)]. Comparisons were made with the numerical results.
基于 Wilson 等人的工作[J. Acoust. Soc. Am. 84, 350-359 (1988)]，构建了一种更精确的数值方法，用于预测高声压水平下刚性多孔介质的非线性声传播和吸收特性。数值解通过烧结纤维多孔钢样品的实验结果进行了验证，并将其预测结果与 Wilson 等人的数值解进行了比较。进一步基于 Lambert 和 McIntosh 发展的波扰动方法[J. Acoust. Soc. Am. 88, 1950-1959 (1990)]，提出了无限厚度刚性充空气多孔材料归一化表面声导纳的近似解析解，并与数值结果进行了比较。
