摘要
安全阀是确保核电站安全运行的重要设施。因此,在设计和使用中必须考虑安全阀结构在正常运行、重大事故和地震作用下的工作性能,从而保证安全阀结构在各种可能的荷载作用下不受损坏。本文采用大型通用有限元程序ANSYS,对安全阀结构有限元模型进行了模态分析、时程分析和谱分析,并通过对各工况计算结果的处理,验证了安全阀结构在各种工况作用下其应力水平和动态响应能够满足我国核电相关规范的规定,该结构安全可靠,具备良好的抗震性能。
The safety valve is a kind of important protective equipment for the facilities of Nuclear Power Plant. Therefore, security capability of the safety valve in the case of normal operation, severe accidents and seismic action must be seriously considered during design and operation. Consequently, the failure of the structure could be avoided in a maximum extent during various load case. In this paper, common finite element method software ANSYS is adopted to simulate the structure of the valve and Modal Analysis, Time History Analysis and Spectrum Analysis is conduct. The results show that the stress level and the dynamic response of the safety valve structure satisfy correlative Nuclear Power Plant Code of country. Thus, the safety and reliability of the structure of the safety valve is guaranteed, the seismic capability of the structure is excellent.
出处
《工程抗震与加固改造》
北大核心
2009年第6期113-115,共3页
Earthquake Resistant Engineering and Retrofitting
关键词
核电站
安全阀结构
有限元分析
抗震性能
Nuclear Power Plant
the structure of the safety valve
analysis of finite element method
seismic capability
