摘要
为保证储罐抗震设计的合理性,对基于刚性壁理论和柔性壁理论的Housner和Haroun-Housner两种等效液动效应力学简化模型进行比较。使用ANSYS有限元软件建立2种不同尺寸储罐的液固耦合模型,进行模态分析和地震反应谱分析,将2种简化模型理论计算结果与有限元模型计算结果进行比较。分析结果表明:2种简化模型理论中储液一阶晃动频率与有限元模型数值解相符;Haroun-Housner模型理论中一阶耦联频率的公式解具有比较高的精确度;对于刚性储罐,2种简化模型与液固耦合有限元模型计算结果都比较接近;对于柔性储罐,Haroun-Housner模型与液固耦合有限元模型计算结果比较接近。通过对比发现,对柔性储罐采用Housner模型进行设计是不保守的,应采用基于容器弹性变形假设的Haroun-Housner模型。
In order to ensure the rationality of the anti-seismic design of liquid storage tanks, analysis and comparison of Housner model and Haroun-Housner model based on the two equivalent hydrodynamic effects theories are made, and the modal analysis and the seismic response spectrum analysis are carried out, and the fluid-solid coupling model of two different sizes of liquid storage tanks were established using ANSYS. The calculation results are compared with the Housner and Haroun-Housner theoretical results. The analysis results show that the formula solution of first-order sloshing frequency of two models and of first fluid-solid coupling frequency of Haroun-Housner model have high accuracy. It is reasonable to design rigid liquid storage tanks with Housner model, but it is not conservative for flexible liquid storage tanks, because the calculation results of Housner model and fluid-solid coupled model are very close for rigid tank but the difference between the calculation results of Housner model and fluid-solid coupled model is large and the simulaiton results of Haroun-Housner model are well agreed with the calculation results of fluid solid coupling model for the flexible tank. It is reasonable to design flexible liquid storage tanks with the Haroun-Housner model based on the assumption of elastic deformation of container.
作者
盛锋
黄磊
Sheng Feng Huang Lei(Process and Layout Design Division, China Nuclear Power Engineering Co. Ltd., Beijing, 100840, China Department of Nuclear Power, China National Nuclear Corporation, Beijing, 100822, China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2017年第3期85-89,共5页
Nuclear Power Engineering
