可修系统的可用度分析方法研究

孔德良; 王少萍

可修系统的可用度分析方法研究

北京航空航天大学自动化科学与电气工程学院

基金项目: 国家自然科学基金资助项目(69801001);国家部委基金资助项目

详细信息

作者简介:
孔德良(1978-),男,江苏徐州人,硕士生,100083,北京.

中图分类号: V 241.01
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- 被引次数: 0
出版历程
- 收稿日期: 2000-06-19
- 网络出版日期: 2002-02-28

Study on Availability Analysis for Repairable System

Beijing University of Aeronautics and Astronautics, School of Automation Science and Electrical Engineering

摘要

摘要: 介绍了一种新的可修系统可用度分析方法——可修系统动态故障树建模分析方法.为了获得高的可靠性和可用性,计算机控制系统大量采用了动态余度管理、储备及复杂的故障恢复技术,使计算机控制系统呈现出很强的动态性和实时性.采用动态故障树与Markov过程综合方法,将计算机控制系统的动态时序用DFTA(Dynamic Fault Tree Analysis)描述,将系统可修过程用Markov过程描述,将系统分解成若干个小的模块,逐步计算各模块的可用度、等效故障概率和维修率,最后综合进行整个系统的可用度分析.
- 故障树图形分析 /
- 综合定位法 /
- 可用性 /
- 动态故障树 /
- Markov状态转移链
Abstract: An availability analysis method for repairable system i.e. Dynamic Fault Tree Analysis(DFTA) was presented .To achieve high reliability and availability, redundant hardware and fault-tolerant software associated with dynamic process, time sequence, backup and failure recovery were adopted in the computer control system. Combing DFTA method and Markov model for repairable system, the dynamic process of a fault-tolerant system and the repairable process can be easily described. To calculate the equivalent failure rate, recovery rate and availability of top event of a complicated system, it is necessary to divide the system into several subtrees which can treated with Markov model. Recurrent, the availability parametes from top to down can achieve the availability analysis for the complicated system.
- fault tree analysis /
- combined method /
- applicability /
- dynamic fault tree /
- Markov state transition chain

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参考文献(1)

[1]泳洪. 系统可靠性、故障诊断及容错[M]. 重庆:重庆大学出版社,1990. [2]曹晋华,程侃. 可靠性数学引论[M]. 北京:科学出版社,1986. [3]Dong T,Myron H, Jeffrey A. Engineering oriented dependability evaluation:MEADEP and its applications . In:1997 Pacific Rim International Symposium on Fault-Tolerant Systems .Kaohsiung Tai Wan:National Cheng Kung University,1997. [4]程明华,姚一平. 动态故障树分析方法在容错计算机系统中的应用 . 见:中国航空学会控制与应用第八届学术年会 . 北京:北京航空航天大学,1998. 63~68. [5]姚一平,李沛琼. 可靠性与余度技术[M]. 北京:航空工业出版社,1991. [6]Anand A,Somani A K. Hierarchical analysis of fault trees with dependencies, using decomposition . In:IEEE 1998 Proceedings Annual Reliability and Maintainability Symposium .Los Angeces California USA:The International Symposium on Product Quality & Integrity,1998. [7]程明华. 软硬件动态故障树分析与CAD及软件可靠性早期预计方法验证研究 . 北京:北京航空航天大学自动控制系, 1999. [8]孔德良. 软硬件容错系统的可信性综合分析研究 . 北京:北京航空航天大学自动控制系, 2001.

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