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《Journal of Vibration and Shock》 2007-02
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FLUID-STRUCTURE INTERACTED VIBRATION OF AN ELEMENT MODEL OF PARALLEL-PLATE FUEL ASSEMBLY

CUI Zhen-dong1,TANG Yi-qun1,GUO Chang-qing2(1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;2.School of Mathematics and Physics,Nanhua University,Hengyang 421001,China)  
Flow-induced vibration and hydroelastic instability of parallel-plate assemblies are studied theoretically.A model of multi-parallel-beams joined with a single-beam is adopted in the theoretical analysis of the natural vibration characteristics of the parallel-plate assembly.In the theoretical calculation and analysis on the wet natural modes,the dry-modal functions are used as trial functions to solve the complex mode equation,utilizing the extended Galerkin method.Fluid-structure interaction on the parallel-plate assemblies is of complex-modal characteristics.Some regular results are drawn from theoretical analysis and calculations and it is beneficial to the design and safety of fuel elements in nuclear reactors.
【Fund】: 湖南省教育厅青年科学基金资助项目(01B017);; 国家自然科学基金资助项目(40372124)
【CateGory Index】: TU311.3
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