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AP1000核电厂非能动贮水箱需保证72 h供水。在地震作用下,水的晃动对核电厂动力响应产生重要的影响。该文基于任意拉格朗日欧拉流固耦合算法,建立AP1000核电厂重力水箱4种水位和3种通风口高度的全耦合精细有限元分析模型,分析满足RG1.60反应谱的核电人工波作用下重力水箱的动力响应,参数化分析核岛厂房顶点加速度响应与水箱水位、通风口高度与结构动力响应之间的相互作用规律,探究核电厂重力水箱的最优水位和通风口。计算结果表明:在满足核电厂供水的条件下,当水位4,通风口C时,AP1000核电厂屏蔽厂房动力响应最小。
AP1000 NPP storage tanks need to ensure 72 h water supply. Under the earthquake, the shaking of water has an important impact on the dynamic response of a nuclear power plant. Based on the arbitrary Lagrange Eulerian fluid-structure interaction algorithm, a fully coupled finite element analysis model of APLC gravity water tank at four water levels and three vent heights was established. The artificial wave of nuclear power meeting RG1.60 response spectrum The dynamic response of the gravity water tank and the parameterized analysis of the interaction between the apical acceleration response of the nuclear island plant and the water level of the water tank and the height of the vent and the dynamic response of the structure are explored to explore the optimal water level and vents of the gravity water tank of the nuclear power plant. The calculation results show that the AP1000 nuclear power plant has the smallest dynamic response when the water level is 4 and the vent C is satisfied under the condition of supplying water to the nuclear power plant.