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应用NX-NASTRAN对核级阀进行抗震分析,计算了阀门的固有频率。采用等效静力法计算阀门在承受地震载荷及组合载荷共同作用下的应力及变形,并根据ASME AG1标准作出了应力评定和强度校核。从而验证核级风阀在预定载荷下能满足结构完整性。
The seismic analysis of the nuclear valve was carried out with NX-NASTRAN, and the natural frequency of the valve was calculated. Equivalent static method is used to calculate the stress and deformation of the valve subjected to seismic load and combined load. Stress assessment and strength verification are carried out according to ASME AG1 standard. Thus verifying that the nuclear-level damper meets the structural integrity under a predetermined load.