含缺陷海水循环泵轴疲劳强度分析

Fatigue and Strength Analysis of CRF Pump with Flaw

针对岭澳核电站大修期间发现的海水循环泵轴腐蚀坑缺陷,从强度与疲劳两方面对缺陷予以评价。此外,还将腐蚀坑缺陷视为初始裂纹考查其稳定性,作为疲劳寿命评价的进一步佐证。通过该方法,对海水循环泵轴的缺陷的结构安全性进行评价,为现场决策提供了数据支撑。

Fatigue and strength analysis are carried out for the CRF pump shaft with correction flaws which are found during outage of Ling＇ao Nuclear Power Plant. Moreover, the corrosion flaws are considered as initial cracks and stability of these cracks are evaluated. Life of the pump shaft is further confirmed. Through the aforementioned analysis procedure, structural safety of the pump shaft with flaws can be evaluated, which provides the technical support for on-site decision.