| 斜入射下多层均质复合板结构的声透射 |
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| 引用本文： | 艾海峰,陈志坚.斜入射下多层均质复合板结构的声透射[J].哈尔滨工程大学学报,2009,30(3). |
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| 作者姓名： | 艾海峰 陈志坚 |
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| 作者单位： | 海军工程大学,船舶与动力学院,湖北,武汉,430033 |
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| 摘 要： | 为研究多层均质复合板的声透射性能,将其简化为多层均匀介质,考虑了平面声波斜入射下介质中声吸收和剪切力的影响,建立了各层介质中前行波和回行波声势幅值之间的传递矩阵,推导了整体透射系数的计算公式.算例分析表明:夹芯板的整体投射系数随着平面入射波的频率的升高而降低,面板厚度、芯板厚度、芯板弹性和剪切损耗因子的增大将会降低整体透射系数,而且面板厚度比芯板厚度的影响大,芯板剪切损耗因子对整体透射系数影响很小.
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| 关 键 词： | 多层均质复合板 传递矩阵 声透射 声吸收 |
Sound transmission in a multilayer homogeneous composite plate subjected to oblique incidence plane waves |
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| AI Hai-feng,CHEN Zhi-jian.Sound transmission in a multilayer homogeneous composite plate subjected to oblique incidence plane waves[J].Journal of Harbin Engineering University,2009,30(3). |
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| Authors: | AI Hai-feng CHEN Zhi-jian |
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| Affiliation: | College of Naval Architecture and Power;Naval University of Engineering;Wuhan 430033;China |
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| Abstract: | The structure of multilayer homogeneous composite plates was simplified as stratified media for sound transmission analysis.Considering sound Absorption and shear stress in the stratified media subjected to oblique incident plane waves,the transfer matrixes of sound potential amplitudes of forward and backward traveling plane waves were presented to derive the total transmission coefficient.A numerical example indicated that the total transmission coefficient was decreased as the frequencies of oblique inci... |
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| Keywords: | multilayer homogeneous composite plate transfer matrix sound transmission acoustic Absorption |
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