摘要
在核电工程中,一回路系统压力边界的密封性能至关重要,密封性能的好坏直接关系到工作人员的健康和安全,人孔密封作为一回路系统重要的压力边界,且承受着严酷的温度、压力波动。基于轴对称理论、几何非线性和材料非线性,建立了密封结构有限元模型,对密封结构的尺寸、材料特性做了详细的模拟,开展了密封结构在复杂载荷作用下的响应行为研究。
Closely related to the health and safety of operators, the primary loop system's sealing performance is very important in nuclear power engineering. As an important part of the primary loop system, the sealing structure of man holes is subject to rigorous temperature and pressure fluctuations. Based on geometric symmetry of the sealing structure, geometry and material nonlinearity, a symmetric finite element model was built to simulate the sealing structure and material parameters. Then, the response behavior of the sealing structure was discussed under complex temperature and pressure time histories.
出处
《应用数学和力学》
CSCD
北大核心
2014年第S1期28-31,共4页
Applied Mathematics and Mechanics
关键词
核电
密封
石墨
非线性
轴对称
nuclear power
sealing structure
graphite gasket
nonlinearity
axial symmetry
