| 力激励与声激励作用下圆柱壳声振性能试验 |
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| 引用本文： | 陈美霞,和卫平,邱昌林,陈清坤. 力激励与声激励作用下圆柱壳声振性能试验[J]. 华中科技大学学报(自然科学版), 2011, 0(3): 55-60 |
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| 作者姓名： | 陈美霞 和卫平 邱昌林 陈清坤 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50805055) |
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| 摘 要： | 以单、双层环肋圆柱壳为对象,通过模型试验分析圆柱壳内部介质与壳体的耦合对壳体声振性能的影响,进而对比分析力激励与声激励下,壳体振动与声辐射的关系以及单、双壳的声振性能.结果表明:当圆柱壳内部介质为空气时,声激励作用下声腔模态与结构模态耦合与否对壳体振动以及内部声场的影响很小;当壳体受力激励作用时,外场声辐射与壳体结构模态有关,当壳体受声激励作用时,外场声辐射与壳体结构模态、声腔模态有关;双壳的外壳对力激励和声激励时的振动与声辐射均起到屏蔽作用.
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| 关 键 词： | 环肋圆柱壳 力激励 声激励 模型试验 振动 声辐射 |
Experiments of the vibration and sound radiation from cylindrical shells under force and sound excitation |
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| Chen Meixia He Weiping Qiu Changlin Chen Qingkun. Experiments of the vibration and sound radiation from cylindrical shells under force and sound excitation[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2011, 0(3): 55-60 |
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| Authors: | Chen Meixia He Weiping Qiu Changlin Chen Qingkun |
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| Affiliation: | Chen Meixia He Weiping Qiu Changlin Chen Qingkun(College of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | With single or double ring-stiffened cylindrical shells taken as an object,the model experiment was carried out to study the influence of the internal medium on the shell vibration and sound radiation,and the vibration and sound radiation of single/double cylindrical shells under different excitation were compared.The result shows that when the interior of cylindrical shells are full of air,the coupling between acoustic cavity and structure has little influence on the shell vibration and internal acoustic f... |
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| Keywords: | ring-stiffened cylindrical shell force excitation sound excitation model experiment vibration sound radiation |
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