| NUMERICAL ANALYSIS OF FLUID FLOW AND ADDED MASS INDUCED BY VIBRATION OF STRUCTURE |
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| 作者姓名： | 苏里 李淑娟 唐国安 |
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| 作者单位： | Department of Mechanics and Engineering Science，Fudan University，Shanghai 200433，P.R.China，Department of Mechanics and Engineering Science，Fudan University，Shanghai 200433，P.R.China，Department of Mechanics and Engineering Science，Fudan University，Shanghai 200433，P.R.China |
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| 摘 要： | IntroductionInmanycases ,theeffectofasurroundingfluidonstructuralvibrationscannotbeneglected .Forexample ,analyzingthefreevibrationsofshipsmustcalculatetheaddedmassofthesurroundingwater1].Mostspacecraftcomponentsarelow_density ,low_stiffnessandwithwide_openedareas,sotheeffectofsurroundingairisobviousandcannotbeneglectedinthenumericalsimulationoftheirmodaltestonground2 ].Sinceairflowinducedbythestructuralvibrationswithlowfundamentalfrequencyandsmallamplitudemotion (Forexample ,thefundamental…
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| 关 键 词： | 奇异分布法 流体动力学 结构变化 质量增加 |
| 收稿时间： | 29 April 2003 |
Numerical analysis of fluid flow and added mass induced by vibration of structure |
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| Su Li,Li Shu-juan,Tang Guo-an.NUMERICAL ANALYSIS OF FLUID FLOW AND ADDED MASS INDUCED BY VIBRATION OF STRUCTURE[J].Applied Mathematics and Mechanics(English Edition),2005,26(2):252-260. |
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| Authors: | Su Li Li Shu-juan Tang Guo-an |
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| Institution: | Department of Mechanics and Engineering Science, Fudan University, Shanghai 200433, P.R. China |
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| Abstract: | The fluid flow induced by light-density, low-stiffness structures was treated as inviscid, incompressible irrotational and steady plane flow. On the basis of the dipole configuration method, a singularity distribution method of distributing sources/sinks and dipoles on interfaces of the structure and fluid was developed to solve the problem of fluid flow induced by the vibration of common structures, such as columns and columns with fins, deduce the expression of kinetic energy of the fluid flow, and obtain the added mass finally. The calculational instances with analytical solutions prove the reliability of this method. |
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| Keywords: | structure fluid vibration added mass singularity distribution method |
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