| 基于统计能量法的环肋圆柱壳中、高频振动与声辐射性能数值分析 |
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| 引用本文： | 和卫平,陈美霞,高菊,陈清坤.基于统计能量法的环肋圆柱壳中、高频振动与声辐射性能数值分析[J].中国舰船研究,2008,3(6). |
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| 作者姓名： | 和卫平 陈美霞 高菊 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,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助
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| 摘 要： | 基于统计能量法(SEA)对力激励下的环肋圆柱壳中、高频振动与声辐射性能进行了数值分析,通过与解析法计算结果的对比,证明了利用统计能量法进行圆柱壳中、高频振动与声辐射研究的可行性.重点分析了双层圆柱壳的振动与声辐射性能,得到一些有价值的结论.最后,对比分析了在相同激励力下的单、双层圆柱壳的声辐射性能,双层圆柱壳的外场辐射声压比单层圆柱壳的小.
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| 关 键 词： | 环肋圆柱壳 振动 声辐射 统计能量分析 |
Numerical Analysis of Middle-high Frequency Vibration and Sound Radiation from a Ring-stiffened Cylindrical Shell by SEA |
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| He Wei-ping,Chen Mei-xia,Gao Ju,Chen Qing-kun.Numerical Analysis of Middle-high Frequency Vibration and Sound Radiation from a Ring-stiffened Cylindrical Shell by SEA[J].Chinese Journal of Ship Research,2008,3(6). |
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| Authors: | He Wei-ping Chen Mei-xia Gao Ju Chen Qing-kun |
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| Institution: | He Wei-ping Chen Mei-xia Gao Ju Chen Qing-kun College of Naval Architecture , Ocean Engineering,Huazhong Univ.of Sci., Tech.,Wuhan 430074,China |
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| Abstract: | In this paper,the statistical energy analyses(SEA)are used to analyze the middle-high frequency vibration and sound radiation from the cylindrical shell with ring stiffeners under force excitation.The numerical results agree very well to those obtained by analytic methods,which shows that the SEA is applicable to such problems.The paper concentrates on the vibration and sound radiation from a double cylindrical shell,and some useful conclusions are drawn.By comparison of the results obtained from single and... |
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| Keywords: | ring-stiffened cylindrical shell vibration sound radiation statistical energy analysis |
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