无损检测可靠性评价技术及实现  

Evaluation on Reliability of Nondestructive Testing Technology and Implementation

作　　者：张春晓 易威[2] 王志平 陈冬存 ZHANG Chun-xiao;YI Wei;WANG Zhi-ping;CHEN Dong-cun(Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance,Civil Aviation University of China,Tianjin 300300,China;College of Science,Civil Aviation University of China,Tianjin 300300,China;College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学天津市民用航空器适航与维修重点实验室,天津300300 [2]中国民航大学理学院,天津300300 [3]中国民航大学航空工程学院,天津300300

出　　处：《数学的实践与认识》2020年第19期269-275,共7页Mathematics in Practice and Theory

基　　金：中国民航总局科技项目(MHRD20160106)。

摘　　要：无损检测技术(NDT)可靠性通常以缺陷检出概率(POD)来评估,但在生产实践中还应考虑误检和漏检给飞机维修决策带来的不同风险.本文在传统模型的基础上,加入误检概率和漏检概率建立计数模型和计分模型,给出NDT可靠性的系统评估方法.设计并加工飞机典型材料常见故障的NDT试样集,获得实际检测数据对所开发方法进行有效性算例分析,结果表明该方法得到的NDT可靠性评估结果精度高,且客观全面.The reliability of non-destructive testing technology(NDT) is generally evaluated by probability of detection(POD),however,in production practice,it is still required to consider the decision-making risks for aircraft maintenance caused by false detection and omission.Based on traditional model,this paper adds the probability of false detection and omission to establish the counting model and scoring model,and presents a systematic evaluation method for NDT reliability.It designs and processes the NDT sample sets of common faults of typical materials of aircraft and acquires the actual testing data to make example analysis on validity of this method,the result shows that it can realize high evaluation accuracy of NDT reliability and is objective and comprehensive.

关 键 词：无损检测 检出概率 计数模型 计分模型 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]