FTA-GERT网络的构建及其在可靠性增长中的应用  

Construction of FTA-GERT Network and Its Application in Reliability Growth

作　　者：张习习 方志耕[2] 陶良彦[2] 刘思峰[2,3] ZHANG Xi-xi;FANG Zhi-geng;TAO Liang-yan;LIU Si-feng(Shanghai Aircraft Design and Research Institute,Commercial Aircraft Corporation of China Ltd,Shanghai 201206,China;College of Economics and Management,Nanjing University of Aeronautics and Astronautics,Nangjing 211106,China;Center for Computational Intelligence,De Montfort University,Leicester LE19BH,UK)

机构地区：[1]中国商用飞机有限责任公司上海飞机设计研究院,上海201206 [2]南京航空航天大学经济与管理学院,江苏南京211106 [3]英国De Montfort大学计算智能研究中心,莱斯特LE19BH

出　　处：《数学的实践与认识》2020年第18期104-113,共10页Mathematics in Practice and Theory

基　　金：国家自然科学基金(面上项目)-协同研制背景下复杂装备可靠性增长GERT网络模型研究(71671091)。

摘　　要：针对FTA(故障树模型)和GERT(图示评审技术)的特点,构建FTA-GERT网络模型,用于描述故障转移状态并可计算网络中的各种概率分布数字特征.考虑复杂装备系统级试验和组件级试验的特点,将该模型运用于可靠性增长评估中,构建可靠性增长FTA-GERT网络模型,将组件级试验数据信息融合后进行系统级可靠性增长评估.通过一个算例说明该模型在可靠性增长中的应用,将组件级试验数据传递为系统级数据.最后,在只知组件级累积失效数据的情况下,传递得到系统级累积失效数据表,并运用Duane模型对该系统进行了可靠性增长的分析,证明所建模型的高效性和实用性.According to the characteristics of FTA(Fault Tree Analysis)and GERT(Graphical Evaluation Review Technique),the FTA-GERT network model is constructed to describe the fault transition state and calculate various probability distribution digital features in the network.In this paper,considering the characteristics of system tests and component tests of complex equipment,the FTA-GERT network model of reliability growth is constructed to evaluate the systematic reliability growth which allows information fusion of component test data.An example is given to illustrate the application of the model in reliability growth which can transfer component test data to system test data.Finally,given the component cumulative failure data,the system level cumulative failure data table is obtained.The reliability growth of the system is analyzed by using Duane model,which proves the efficiency and practicability of the model.

关 键 词：FTA-GERT网络模型 故障树模型 图示评审技术 可靠性增长 累积失效率 

分 类 号：O213.2[理学—概率论与数理统计] TB114.3[理学—数学]