| 叠层板型燃料堆芯元件模型的流固耦合振动 |
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| 引用本文： | 崔振东,唐益群,郭长青.叠层板型燃料堆芯元件模型的流固耦合振动[J].振动与冲击,2007,26(2):48-50,71. |
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| 作者姓名： | 崔振东 唐益群 郭长青 |
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| 作者单位： | 1. 同济大学地下建筑与工程系,上海,200092
2. 南华大学数理学院,湖南衡阳,421001 |
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| 基金项目： | 湖南省教育厅资助项目;国家自然科学基金 |
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| 摘 要： | 叠层板状结构是新型核反应堆设计中所采用的一种堆芯元件，具有结构合理、比功率高和传热性能好等显著特点。提出了单梁与多梁对接的力学模型，以干模态振型函数序列作为试函数对复模态振型方程进行变分求解，研究了叠层板状元件在湿模态下的固有频率与振型，发现叠层板状结构的流致振动具有复模态特性，文中初步找到一些规律性的结果，为设计和安全分析提供一些有用的方法和数据。
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| 关 键 词： | 湿模态 叠层板 流固耦合 振型 |
| 修稿时间： | 2006-04-172006-06-21 |
FLUID-STRUCTURE INTERACTED VIBRATION OF AN ELEMENT MODEL OF PARALLEL-PLATE FUEL ASSEMBLY |
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| CUI Zhen-dong,TANG Yi-qun,GUO Chang-qing.FLUID-STRUCTURE INTERACTED VIBRATION OF AN ELEMENT MODEL OF PARALLEL-PLATE FUEL ASSEMBLY[J].Journal of Vibration and Shock,2007,26(2):48-50,71. |
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| Authors: | CUI Zhen-dong TANG Yi-qun GUO Chang-qing |
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| Abstract: | 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. |
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| Keywords: | wet-mode parallel-plate assembly fluid-structure interaction vibrationmodal shape |
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