考虑流固耦合的AP1000盾构试验与数值研究

IF 1 4区工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY

Science and Technology of Nuclear Installations Pub Date : 2022-09-02 DOI:10.1155/2022/6458549

Zhi Zhang, Chenning Song, Zhining Duan, Zhi-yuan Cheng

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引用次数: 0

摘要

重力冷却水箱是第三代压水堆核电站一个显著的结构特点。为研究流固耦合对结构地震反应的影响，设计了AP1000盾构建筑的两个1:50简化模型。进行了一系列振动台试验，研究了考虑和不考虑FSI效应时的地震反应。分析了两种模型的固有频率、加速度、应变和动水压力，并对水箱的抗震效果进行了评价。并利用ABAQUS软件对试验数据与数值分析结果进行了比较。结果表明，水的存在和水的晃动降低了模型结构的固有频率和地震响应。由此可见，重力冷却水箱具有一定的减震效果。简化的水晃动模型可用于盾构结构的地震反应分析。

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Experimental and Numerical Studies of AP1000 Shield Building considering Fluid-Structure Interaction

The gravity cooling water tank is a remarkable structural feature of third-generation pressurized water reactor nuclear power plant. To investigate the influence of fluid-structure interaction (FSI) on the seismic response of the structure, this study designed two 1 : 50 simplified models of the AP1000 shield building. A series of shaking table tests were conducted to study the seismic responses with and without FSI effect. The natural frequency, acceleration, strain, and hydrodynamic pressure of the two models were analyzed, and the seismic reduction effect of the water tank was evaluated. Moreover, the test data were compared with the results of numerical analysis using the ABAQUS software. The results show that the presence of water and the sloshing of water reduce the natural frequency and seismic response of the model structure. Thus, the gravity cooling water tank has a certain seismic reduction effect. The simplified model of water sloshing can be used to analyze the seismic response of the shield building.

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来源期刊

Science and Technology of Nuclear Installations NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

4-8 weeks

期刊介绍： Science and Technology of Nuclear Installations is an international scientific journal that aims to make available knowledge on issues related to the nuclear industry and to promote development in the area of nuclear sciences and technologies. The endeavor associated with the establishment and the growth of the journal is expected to lend support to the renaissance of nuclear technology in the world and especially in those countries where nuclear programs have not yet been developed.