Low-Frequency Broadband Sound Transmission Loss of Infinite Orthogonally Rib-Stiffened Sandwich Structure with Periodic Subwavelength Arrays of Shunted Piezoelectric Patches
Low-Frequency Broadband Sound Transmission Loss of Infinite Orthogonally Rib-Stiffened Sandwich Structure with Periodic Subwavelength Arrays of Shunted Piezoelectric Patches
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具有分流压电贴片周期性亚波长阵列的无限正交肋加强夹层结构的低频宽带声传输损耗
DOI：
10.1155/2017/2791351
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发表时间：
2017-04
影响因子：
1.6
通讯作者：
Huang Qibai
中科院分区：
文献类型：
--
作者：
Zhang Zhifu;Zheng Weiguang;Huang Qibai
This paper studies low-frequency sound transmission loss (STL) of an infinite orthogonally rib-stiffened sandwich structure flexibly connected with periodic subwavelength arrays of finite shunted piezoelectric patches. A complete theoretical model is proposed by three steps. First, the panels and piezoelectric patches on both sides are equivalent to two homogeneous facesheets by effective medium method. Second, we take into account all inertia terms of the rib-stiffeners to establish the governing equations by space harmonic method, separating the amplitude coefficients of the equivalent facesheets through virtual work principle. Third, the expression of STL is reduced. Based on the two prerequisites of subwavelength assumption and convergence criterion, the accuracy and validity of the model are verified by finite element simulations, cited experiments, and theoretical values. In the end, parameters affecting the STL performance of the structure are studied. All of these results show that the sandwich structure can improve the low-frequency STL effectively and broaden the sound insulation bandwidth.
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影响因子：
3.4
作者：
V. Hongisto
通讯作者：
V. Hongisto
影响因子：
4.7
作者：
D. Takahashi
通讯作者：
D. Takahashi
DOI：
10.1017/cbo9781139207249.009
发表时间：
2012
期刊：
--
影响因子：
--
作者：
W. Marsden
通讯作者：
W. Marsden
影响因子：
4.1
作者：
Thorp, O;Ruzzene, M;Baz, A
通讯作者：
Baz, A
DOI：
10.1121/1.1332377
发表时间：
2001-01
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
V. Hongisto;M. Lindgren;J. Keränen
通讯作者：
V. Hongisto;M. Lindgren;J. Keränen