流体机械
流體機械
류체궤계
Fluid Machinery
2015年
8期
55-58
,共4页
风道调节阀%抗震分析%振动模态%地震载荷
風道調節閥%抗震分析%振動模態%地震載荷
풍도조절벌%항진분석%진동모태%지진재하
air duct regulator%seismic analysis%vibration mode%seismic load
为了验证阀门的抗震性能,基于有限元分析方法,应用NASTRAN计算阀门整机的振动模态以及在承受地震载荷及组合载荷共同作用下的应力及变形,然后根据ASME规范对承压边界部件作出应力评定和强度校核. 结果表明,该核级风道调节阀在地震载荷及组合载荷作用下能保持结构完整性.
為瞭驗證閥門的抗震性能,基于有限元分析方法,應用NASTRAN計算閥門整機的振動模態以及在承受地震載荷及組閤載荷共同作用下的應力及變形,然後根據ASME規範對承壓邊界部件作齣應力評定和彊度校覈. 結果錶明,該覈級風道調節閥在地震載荷及組閤載荷作用下能保持結構完整性.
위료험증벌문적항진성능,기우유한원분석방법,응용NASTRAN계산벌문정궤적진동모태이급재승수지진재하급조합재하공동작용하적응력급변형,연후근거ASME규범대승압변계부건작출응력평정화강도교핵. 결과표명,해핵급풍도조절벌재지진재하급조합재하작용하능보지결구완정성.
Based on the finite element analysis method, the vibration mode of the whole valve was calculated by NASTRAN for verifying the seismic performance of the valve.The finite element model of valve, which subjected to the seismic load and combi-ning load, was built to determine stress and deformation.And then stress evaluation and strength check were performed in accord-ance with ASME code.The results show that nuclear air duct regulator due to shutdown earthquake and combining load can satisfy the requirement of structure integrity.
