摘要
采用大型有限元分析软件NASTRAN,对超临界1 000 MW汽轮机中压缸主汽阀阀壳的冷态启动过程和额定工况下的温度场和应力场进行计算,得到了冷起动过程中阀壳的温度和应力分布规律,并将冷启动结束时的计算结果同额定工况下的计算结果作一对比分析.
The temperature and stress in valve housing of medium cylinder in super critical steam turbine during cold start and under nominal load were calculated with FEM cord NASTRAN. The changes of temperature and stress in valve housing with time are presented.
出处
《上海理工大学学报》
EI
CAS
北大核心
2007年第1期75-78,共4页
Journal of University of Shanghai For Science and Technology
关键词
汽轮机
阀壳
温度场
热应力
steam turbine
valve housing
temperature field
thermal stress
