裂纹尺寸模糊表征下的含缺陷压力容器R6评定方法  

The R6 Assessment Method for the Pressure Vessel with Defects Based on the Fuzzy Expression of Crack Size

作　　者：丁克勤[1] 傅惠民[2] 

机构地区：[1]国家质量监督检验检疫总局锅炉压力容器检测研究中心 [2]北京航空航天大学固体力学所

出　　处：《压力容器》2002年第6期9-11,共3页Pressure Vessel Technology

基　　金：国防科工委资助项目

摘　　要：对缺陷检测尺寸的表征方法进行了研究 ,提出了缺陷尺寸的模糊表征方法 ,然后建立了裂纹尺寸模糊表征下的含缺陷压力容器R6评定方法。该方法不但可以对压力容器进行高模糊可靠度的安全性评定 ,而且还可以将不同检测人员检测出的不同的缺陷尺寸进行数据融合 ,得到一致的R6评定结果 ,使其更加准确。A research into expression method of crack size according to fuzzy theory of non-destructive testing was made, and the fuzzy expression method of crack size was presented. Then R6 assessment method for the pressure vessel with defects based on the fuzzy expression of crack size was proposed. According to this method, not only the assessment result with high fuzzy reliability in assessing pressure vessels can be obtained, but defect inspection sizes from different inspection persons can be fused to obtain the assessment results more reliably, more accurately.

关 键 词：压力容器 缺陷尺寸 模糊表征 失效评定 可靠度 

分 类 号：TH49[机械工程—机械制造及自动化] O346.1[理学—固体力学]