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论文类型：期刊论文
发表时间：2017-07-01
发表刊物：NUCLEAR ENGINEERING AND DESIGN
收录刊物：SCIE、EI、Scopus
卷号：318
页面范围：182-201
ISSN号：0029-5493
关键字：Nuclear power plant; Ring baffle; Fluid-structure interaction; Seismic performance; Optimal design
摘要：The shield building of AP1000 is designed to protect the steel containment vessel of nuclear power plant. Therefore, the safety and integrity must be ensured during the plant life in any conditions such as earthquake. The purpose of this paper is to study the fluid-structure interaction of water in water tank and effects of internal ring baffle on the response of AP1000 shield building under strong ground motions. For this purpose, a fluid-structure interaction algorithm of finite element technique is employed to investigate the seismic response of water tank with internal baffles of different shapes and arrangements under artificial, El-Centro and Kobe earthquakes with peak acceleration of 0.3 g. Four optimal designed schemes of different ring baffle types are considered and the influences of various parameters such as vertical baffle height, arrangement locations, baffle height ratio and length of baffle on the dynamical response of shield building are discussed. The numerical results clearly show that the water tank with vertical ring baffle near the bottom of tank can limit the vibration of shield building and can more efficiently dissipate the kinematic energy of the shield building under different earthquake. (C) 2017 Elsevier B.V. All rights reserved.