NMOHEMS布放系统可靠性的Petri网分析方法  

Reliability Analysis Method Based on Petri Network for NMOHEMS Deployment System

作　　者：翁兴国[1,2] 王晓蕾[2] 叶松[2] 于利军[2] 陈振涛[2] 

机构地区：[1]陆军航空兵学院飞行理论系,北京通州101123 [2]解放军理工大学气象海洋学院,江苏南京211101

出　　处：《自动化仪表》2014年第1期22-25,共4页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(编号:40976062);江苏省自然科学基金资助项目(编号:BK2012513)

摘　　要：针对NMOHEMS布放系统的使用背景和工作原理,分析了对布放系统进行可靠性分析的重要性。根据NMOHEMS布放系统的工作过程,构建了系统的故障树模型,阐述了布放系统各个事件之间的逻辑关系。结合Petri网模型对故障树进行表示和简化,并使用Petri网描述了系统的动态性质和结构性质,弥补了传统故障树分析法的不足。理论分析和实例验证结果表明,该方法可以减少计算量,且易于在计算机上实现,为系统的可靠性分析和优化设计提供了理论基础。In accordance with the operating background and working prineiple of new mobile offshore hydrologic environment monitoring system （NMOHEMS} , the significance of analyzing the reliability of the deployment system is elaborated. The fault tree model of the system is established on the basis of operating procedures of NMOHEMS deployment system. The logical relationship among each event of the deployment system is described. Combining with Petri network model, the fault tree is represented and simplified, and by using Petri network, the dynamie and structural characteristics are depicted, this makes up the shortcomings of traditional fault tree analysis method. The results of theoretical analysis and practical example show that this method can reduce the amount of computation, and can be implemented in computer; it provides theoretical foundation for reliability analysis and optimization design of the system.

关 键 词：可靠性分析 PETRI网 故障树 关联矩阵 最小割集 NMOHEMS 

分 类 号：TP802.1[自动化与计算机技术—检测技术与自动化装置]