大型薄壁储液罐抗震分析方法研究  

作　　者：刘嘉一 张东辉[2] 刘宝君 盛锋 

机构地区：[1]中国核电工程有限公司,北京100840 [2]中国原子能科学研究院,北京102413

出　　处：《科技视界》2021年第17期66-69,共4页Science & Technology Vision

摘　　要：文章结合国内外对大型薄壁储液罐抗震特性的研究进展,针对核电厂中大型薄壁储液罐的抗震分析方法进行研究和总结。以工程中此类储液罐为例,应用声流单元流固耦合法建立有限元模型进行分析,对比简化理论结果,验证模型的有效性及分析结果的可靠性。总结此方法在计算效率、计算准确度、可适用性等方面存在的优缺点,为更合理地对具有高度非线性特征的大型薄壁储液罐的抗震分析提供依据。In this paper,combined with the research progress of seismic characteristics of large thin-walled liquid storage tanks at home and abroad,the seismic analysis methods of large thin-walled liquid storage tanks in nuclear power plants are studied and summarized.Taking this kind of liquid storage tank in engineering as an example,the finite element model is established and analyzed by using the acoustic flow element fluid solid coupling method,and the validity of the model and the reliability of the analysis results are verified by comparing the simplified theoretical results.This paper summarizes the advantages and disadvantages of this method in calculation efficiency,calculation accuracy and applicability,which provide a basis for the seismic analysis of large thin-walled liquid storage tanks with highly nonlinear characteristics.

关 键 词：大型薄壁 储液罐 抗震 声流单元 流固耦合 

分 类 号：TL48[核科学技术—核技术及应用]