摘要
蒸汽发生器(SG)传热管束受二次侧横向流动流体的激励而产生的振动,是引起SG传热管失效的主要原因之一,传热管的固有频率和振型是进行流致振动响应分析评价的关键因素。采用理论分析与试验相结合的方式对ZH-65型SG的传热管开展动态特性研究,获得了传热管的固有频率和振型。试验值和计算值的相对偏差在8%以内。
The secondary cross flow induced vibration of tube bundles of steam generator is the main failure reason of tubes. The flow induced vibration analysis and evaluations are based on the natural frequencies and modes of the heat transfer tube. A study on the dynamic characteristics of the heat transfer tube of a certain type steam generator have been carried out by calculation and experiment, and the natural frequencies and modes were obtained, and the relative deviations between measured and calculated values are within 8%.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2015年第5期65-67,共3页
Nuclear Power Engineering
关键词
传热管
动态特性
固有频率
Heat transfer tube, Dynamic characteristics, Natural frequency
