| 流场中有限长纵横加筋圆柱壳声辐射 |
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| 引用本文： | 文丽,骆东平,陈越澎,陈美霞.流场中有限长纵横加筋圆柱壳声辐射[J].华中科技大学学报(自然科学版),1999,27(8):2. |
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| 作者姓名： | 文丽 骆东平 陈越澎 陈美霞 |
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| 作者单位： | 华中理工大学交通科学与工程学院 |
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| 摘 要： | 研究流场中加环肋和纵骨的有限长圆柱壳在简谐径向点激励下的声辐射.把环肋和纵骨等价为线反力和反力矩作用在柱壳内壁，将反力和反力矩表示成位移的函数.基于Flügge薄壳理论，推导了壳体的流固耦合振动方程，计算了其表面振动速度级和辐射声功率级.还分析了纵骨和环肋对圆柱壳声辐射的影响.
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| 关 键 词： | 加筋圆柱壳 声辐射 径向振动均方速度 辐射声功率 |
| 修稿时间： | 1999-01-22 |
Sound Radiation from Finite Submerged Stiffened Cylindrical Shell |
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| Wen Li,Luo Dongping,Chen Yuepeng,Chen Meixia.Sound Radiation from Finite Submerged Stiffened Cylindrical Shell[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1999,27(8):2. |
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| Authors: | Wen Li Luo Dongping Chen Yuepeng Chen Meixia |
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| Institution: | Wen Li Luo Dongping Chen Yuepeng Chen Meixia |
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| Abstract: | Sound radiation from a finite submerged
stiffened cylindrical shell excited by harmonic radial point driving force is discussed.
The rings and longitudinal stiffeners are addressed as dynamic reverse forces and moments
acting on the shell. These forces and moments are introduced as displacement-dependent
load. The coupled fluid-solid motion equations of the shell are presented based on Flügge
thin shell theory. An example dealing with numerical calculation of the radiated power and
surface quadratic velocity of the shell is given. The influence of the rings and
longitudinal stiffeners on the sound radiation of the cylindrical shell are obtained. |
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| Keywords: | stiffened cylindrical shell sound radiation radial quadratic velocity radiated power |
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