压力容器2012，Vol.29Issue(2)：56-60,5.DOI:10.3969/j.issn.1001-4837.2012.02.010
标准化残差法在判别RPV冲击转变曲线常点中的应用
Application of Standardized Residual Method in Identification of Outlier in Ductile Brittle Transition Curve of RPV
王荣山 1彭啸 1黄平 1李建勇1
作者信息
- 1. 苏州热工研究院有限公司,江苏苏州215004
- 折叠
摘要
Abstract
Fracture toughness of nuclear reactor pressure vessel is evaluated by the impact toughness of charpy impact specimens in surveillance capsule in NPP. However, the results under impact condition are obviously dispersed, which limits the fitting precision of the ductile brittle transition curve. Standardized residual method was utilized to pick out the outlier data. Fitting precision was improved in the optimized curve, and the uncertainty became lower. Supplementary experiments can be conducted when the outlier data is found in practice.关键词
反应堆压力容器/韧脆转变曲线/标准化残差法/异常点Key words
reactor pressure vessel/ ductile brittle transition curve/ standardized residual method/ outlier分类
机械制造引用本文复制引用
王荣山,彭啸,黄平,李建勇..标准化残差法在判别RPV冲击转变曲线常点中的应用[J].压力容器,2012,29(2):56-60,5.
