| 加筋圆柱壳流固耦联振动步长样条元分析 |
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| 引用本文： | 谭林森,骆东平. 加筋圆柱壳流固耦联振动步长样条元分析[J]. 华中科技大学学报(自然科学版), 1992, 0(3) |
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| 作者姓名： | 谭林森 骆东平 |
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| 作者单位： | 华中理工大学船舶和海洋工程系(谭林森)，华中理工大学船舶和海洋工程系(骆东平) |
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| 摘 要： | 本文用步长样条元分析了加筋圆柱壳流固耦联振动特性.利用流固交界面运动协调条件求出流场势函数与流体位移场的关系式;由变分原理推导出系统运动方程.对加筋圆柱壳振动特性进行了数值分析,探讨了液动压力对结构固有频率的影响.
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| 关 键 词： | 船舶结构力学 圆柱壳 流固耦联振动 基频 样条方法 步长矩阵 |
Vibration Analysis of Fluid-Structure Interaction for Cylindrical Shells with Stiffeners Using Step-Spline Element |
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| Tan Linsen Luo Dongping. Vibration Analysis of Fluid-Structure Interaction for Cylindrical Shells with Stiffeners Using Step-Spline Element[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1992, 0(3) |
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| Authors: | Tan Linsen Luo Dongping |
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| Affiliation: | Tan Linsen Luo Dongping |
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| Abstract: | The vibration characteristic of fluid-structure interaction for cylindrical shells with stiffeners is analyzed with the step-spline element method. The expressions for fluid potential and shell displacement are obtained by coupled motion of the fluid-structure interface. The equation of motion for a fluid-structure system is derived using the variational principle. The effect of fluid pressure on the natural frequency of the structure is discussed. |
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| Keywords: | ship structural mechanics cylindrical shell vibration of fluid- structure interaction fundamental frequency spline method step matrix |
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