| 流固耦合计算及导管振动研究 |
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| 引用本文： | 贾明章,吴士冲.流固耦合计算及导管振动研究[J].中国造船,1986(1). |
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| 作者姓名： | 贾明章 吴士冲 |
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| 作者单位： | 中国船舶科学研究中心
(贾明章)，中国船舶科学研究中心(吴士冲) |
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| 摘 要： | 本文把结构有限元法和流体奇点法结合起来,用模态分析的原理求解任意形状的平面或空间浸水结构的前几谐调的附连水质量和固有频率。并编制了流固耦合振动的通用程序。对自由液面、水底平面和岸壁的各种组合边界条件,在程序中应用映射技巧处理。文中给出了导管模型在空气中和水中的振动试验结果以及用所编程序对该导管的计算结果,还导出了导管附连水质量的近似估算公式。
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| 关 键 词： | ——Ship structure structure-fluid interaction application of model analysis princi-ple images technique vibration calculation of propeller duct experimental verification. |
STRUCTURE-FLUID INTERACTION AND VIBRATION OF PROPELLER DUCT |
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| Jia Mingzhang and Wu Shichong.STRUCTURE-FLUID INTERACTION AND VIBRATION OF PROPELLER DUCT[J].Shipbuilding of China,1986(1). |
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| Authors: | Jia Mingzhang and Wu Shichong |
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| Institution: | Shina Ship Scientific Research Center |
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| Abstract: | This paper deals with the first fewnatural frequencies and added mass of submerged structure by means of modal analysis principle along with finite element method for structure and singularity method for fluid. A program is developed for structure-fluid coupling vibration. In this program, free water surface condition and boundary condition on seabed and bank are satisfied by means of images. Test results of duct vibration both in air and in water are presented and are compared with computer calculations. |
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