四川轻化工大学学报（自然科学版）2024，Vol.37Issue(3)：27-33,7.DOI:10.11863/j.suse.2024.03.04
不同温度LBE对主容器振动特性的影响分析
Analysis of Vibration Characteristics of Main Vessel Affected by LBE with Different Temperatures
摘要
Abstract
The vibration characteristics of lead-based fast reactor main vessel in air and lead-bismuth eutectic medium at different temperatures are studied by means of fluid-structure coupling and ANSYS software.Solid modeling is used for the main vessel,and the FLUID30 unit is used to simulate the fluid of lead-bismuth eutectic medium.The effect of additional mass of lead-bismuth eutectic medium on the vibration characteristics of the main vessel is considered.The results show that the first six modes of the two models are first-order beam mode and low-order shell mode.Because of the difference of the constraints of the two models,the order of the modes is different.Compared with that in the air,the first six order modes in the lead-bismuth eutectic environment did not show higher order modes.However,due to the influence of added mass,the calculated values of each order frequency decreased significantly by about 80%,which is accompanied by the phenomenon of mode exchange.With the increase of temperature,the frequency of each mode of the main vessel shows a decreasing trend.When the temperature increased from 150℃to 390℃,the frequency decreased by about 27.3%.关键词
流固耦合/铅铋共晶/主容器/铅基快堆/有限元Key words
fluid-structure coupling/lead-bismuth eutectic/main vessel/lead-based fast reactor/finite element分类
数理科学引用本文复制引用
刘东祥,鲁丽..不同温度LBE对主容器振动特性的影响分析[J].四川轻化工大学学报（自然科学版）,2024,37(3):27-33,7.基金项目
国家自然科学基金项目(11772273 （）
12072298) （）
