| 潜水器动力舱振动与声辐射 |
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| 引用本文： | 谭林森,骆东平,吴崇健,伏同先.潜水器动力舱振动与声辐射[J].华中科技大学学报(自然科学版),1999(11). |
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| 作者姓名： | 谭林森 骆东平 吴崇健 伏同先 |
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| 作者单位： | 华中理工大学交通科学与工程学院(谭林森，骆东平)，中国船舶重工集团701研究所(吴崇健，伏同先) |
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| 基金项目： | 中国船舶重工集团国家重点实验室基金 |
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| 摘 要： | 基于壳体水弹性理论，探讨了潜水器动力舱振动与声辐射建模及分析方法，并对常用潜水器动力舱振动和声辐射进行了分析．结果表明，该舱振动复杂，模态密度大，难于避开动力源工作频率；其频率响应峰值集中在中低频段，响应大小与激振频率和激振方向有关；阻尼对频率响应影响较大，敷设阻尼材料降噪效果显著．
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| 关 键 词： | 潜水器 动力舱 模态分析 频率响应 声辐射 |
The Vibration and Sound Radiation of Submarine Dynamic Cabin |
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| Tan Linsen,Luo Dongping,Wu Chongjian,Fu Tongxian.The Vibration and Sound Radiation of Submarine Dynamic Cabin[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1999(11). |
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| Authors: | Tan Linsen Luo Dongping Wu Chongjian Fu Tongxian |
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| Institution: | Tan Linsen Luo Dongping Wu Chongjian Fu Tongxian |
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| Abstract: | The model of vibration and sound radiation of submarine dynamic cabin and its analysis method are discussed with the help of the hydroelasticity theory of shells. The structure finite element and fluid boundary elements are used to analyze the vibration and sound radiation of common submarine dynamic cabin. The result shows that the vibration is complex, and the density of mode shape is large, thus being impossible to avoid from the work frequency of dynamic source. The peak value of frequency response is concentrate on midband and lowband. The response value has a relationship to excitation frequency and excitation direction. The damp influences on the frequency greatly. Using the damp material to reduce noise is very effective. |
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| Keywords: | submarine dynamics cabin mode shape frequency response sound radiation |
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