水平孔道“O”形环密封结构有限元接触分析  

Finite Element Contact Analysis of "O" Ring Sealing Structure in Horizontal Channel

作　　者：周丹[1] 盛选禹[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《核动力工程》2008年第5期22-24,32,共4页Nuclear Power Engineering

摘　　要：利用ABAQUS软件对研究堆水平实验孔道中异种材料法兰联接的密封结构进行了弹塑性接触计算。利用有限元分步加载技术,模拟了主螺栓预紧和加压过程,研究了主法兰的应力分布和结构的密封性能。计算结果表明,在预紧状态和设计压力状态下,水平孔道中的异种材料法兰联接-双道"O"形环密封结构完全可以满足强度和密封要求。An elastic-plastic nonlinear analysis is conducted by ABAQUS software to study the sealing structure of flange connection with different material in horizontal channel. The processes for pre-tightening of primary bolts and pressurizing in the horizontal channel are simulated by finite element multi-step skill. The stress distribution and sealing performance of primary flange is studied. The analysis results show that the double O-ring sealing structure in horizontal channel can meet the requirements on strength and sealing during the pre-tightening and pressurizing processes.

关 键 词：弹塑性分析 水平孔道 “O”形环 

分 类 号：TH136[机械工程—机械制造及自动化] TP31[自动化与计算机技术—计算机软件与理论]