| 基于分层媒质模型的声学性能仿真研究 |
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| 引用本文： | 缪旭弘,顾磊,高兴华,姚熊亮.基于分层媒质模型的声学性能仿真研究[J].计算机仿真,2003,20(10):74-76,80. |
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| 作者姓名： | 缪旭弘 顾磊 高兴华 姚熊亮 |
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| 作者单位： | 1. 哈尔滨工程大学,黑龙江,哈尔滨,150001
2. 海军研究中心,北京,100073 |
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| 摘 要： | 该文采用分层媒质模型，对尖劈型吸声材料及平板型隔声材料的吸、隔声性能进行了仿真研究。对尖劈型吸声材料用类比变截面管道的声场理论，给出了计算其吸声系数的一种方法；对平板型隔声材料采用传递矩阵方法，推导了多层结构的透射系数和插入损失公式。通过仿真计算，指出了改进材料声学性能的途径。
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| 关 键 词： | 船舶 振动噪声 声学 性能仿真 分层媒质模型 声场理论 |
| 文章编号： | 1006-9348(2003)10-0074-03 |
Simulation on the Acouctics Performance Based on the Model of Laying Medium |
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| Abstract: | The absorbing and insulation performance of wedge absorbor and plat insulation meterial is studied by using the model of laying medium in this thesis. The theoretical method for calculating the absorption coefficient of the absorber is provided by analogying the acoustic field in a tube with varying cross section. The formula of homology coefficient and insertion penalty of the plat insulation meterial with multiple layer is provided by using the model of transitive matrix. The method for improving acouctic performance of these is given by computer simulation. |
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| Keywords: | Acouctic material The laying medium Simulation |
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