| 基于格林函数的无障板结构声辐射分析 |
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| 引用本文： | 李天匀,刘敬喜,周健.基于格林函数的无障板结构声辐射分析[J].华中科技大学学报(自然科学版),2003,31(4):99-101. |
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| 作者姓名： | 李天匀 刘敬喜 周健 |
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| 作者单位： | 华中科技大学交通科学与工程学院 |
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| 基金项目： | 武汉市青年科技晨光计划项目 (985 0 0 30 82 ) |
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| 摘 要： | 研究了处于无限大流体声介质中无障板简支板的声辐射问题．利用三维声场中声波方程的格林函数，推导了辐射声压的一般解析表达式．计算表明宽频带总辐射声功率级随着板厚的增加而降低，而激励处于中心点的位置对降低宽频带总辐射声功率级是不利的．
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| 关 键 词： | 无障板结构 格林函数 声辐射 声场 声波方程 辐射声压 辐射声功率 简支板 |
| 文章编号： | 1671-4512(2003)04-0099-03 |
Sound radiation of unbaffled plate based on Green function |
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| Li Tianyun Liu Jingxi Zhou Jian Li Tianyun Assoc. Prof.,College of Traffic Sci. & Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Sound radiation of unbaffled plate based on Green function[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(4):99-101. |
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| Authors: | Li Tianyun Liu Jingxi Zhou Jian Li Tianyun Assoc Prof College of Traffic Sci & Eng Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Li Tianyun Liu Jingxi Zhou Jian Li Tianyun Assoc. Prof.,College of Traffic Sci. & Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | Sound radiation by a simply supported unbaffled plate was presented. The analytical expression of radiation pressure was deduced based on the Green function of three dimensional wave equation. The plate response was developed in a series of the simply supported plate modes. The results showed that the total radiation power decreased with the increase of the thickness and it was disadvantageous to decrease the total radiation powering in the mid point load. |
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| Keywords: | plate structure Green function sound radiation |
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