摘要
堆芯燃料组件作为核电厂反应堆中的抗震Ⅰ类部件,其在地震作用下是否会发生显著变形或破坏,将关系到整个燃料组件的完整性和反应堆的安全性。针对堆芯燃料组件的结构特性,结合堆芯燃料组件抗震性能评价准则中的具体评价要求,研究构建堆芯燃料组件抗震分析计算模型的简化方法。在此基础上,结合组件简化模型中的四类抗震计算关键参数,进一步分析各关键参数对单组件简化模型动力学特性和多组件堆芯模型抗震分析计算的影响,从而更加准确的把握各关键参数对组件抗震计算的影响程度,为相关设计和核安全审评提供参考。
The core fuel assembly is the seismic class I component in the nuclear power plant reactor.Whether it will be significantly deformed or damaged under the action of an earthquake will affect the integrity of the entire core assembly and the safety of the reactor.In view of the structural characteristics of the core fuel assembly,combined with the specific evaluation requirements in the core fuel assembly seismic performance evaluation criteria,a simplified method for constructing the core fuel assembly seismic analysis calculation model is studied.On this basis,combined with the four key parameters of the component simplified model,the influence of the key parameters on the dynamic characteristics of the single component simplified model and the seismic analysis and calculation of the multi-component core model is further analyzed,so as to more accurately grasp the influence of the key parameters on the component seismic calculation,and provide reference for relevant design and nuclear safety review.
作者
魏超
宋辰宁
郭超
刘巧凤
WEI Chao;SONG Chenning;GUO Chao;LIU Qiaofeng(Nuclear and Radiation Safety Center,Ministry of Ecology and Environment,Beijing 100082,China;School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China)
出处
《地震工程与工程振动》
CSCD
北大核心
2023年第5期232-239,共8页
Earthquake Engineering and Engineering Dynamics
基金
国家重点研发计划项目(2018YFB1900102-01)
国家自然科学基金项目(51908338)。
关键词
燃料组件
等效模型
抗震分析
敏感性分析
fuel assembly
equivalent model
seismic analysis
sensitivity analysis
