航空学报 > 2011, Vol. 32 Issue (11): 2016-2024   doi: CNKI:11-1929/V.20110810.1118.003

基于混合动态系统理论的事故过程建模方法

王薇, 赵廷弟   

  1. 北京航空航天大学 可靠性与系统工程学院, 北京 100191
  • 收稿日期:2011-03-08 修回日期:2011-04-25 出版日期:2011-11-25 发布日期:2011-11-24
  • 通讯作者: 赵廷弟 E-mail:ztd@buaa.edu.cn
  • 作者简介:王薇(1983- ) 女,博士研究生。主要研究方向:安全性工程。 Tel: 010-82317665 E-mail: wangwei@dse.buaa.edu.cn 赵廷弟(1965- ) 男,博士,教授,博士生导师。主要研究方向:可靠性工程,安全性工程。 Tel: 010-82316570 E-mail: ztd@buaa.edu.cn

Research on Accident Process Modeling Based on Hybrid Dynamic System Theory

WANG Wei, ZHAO Tingdi   

  1. School of System Engineering of Engineering Technology, Beihang University, Beijing 100191, China
  • Received:2011-03-08 Revised:2011-04-25 Online:2011-11-25 Published:2011-11-24

摘要: 为了研究系统事故机理,建立有效的事故过程模型,分析了事故过程的特征,指出其呈现离散与连续动态行为交互的混合特性。针对现有事故过程建模方法在描述该混合特性时的不足,提出了基于混合动态系统理论的建模方法,建立了事故过程的混合自动机模型,在Simulink/Stateflow环境下进行仿真。实现了事故过程的连续机理与状态运转及其交互影响的有效融合,为制定应急预案提供了依据。通过案例模拟了系统从危险经应急操作,直至事故或安全的过程,验证了该方法的有效性。

关键词: 事故, 安全工程, 建模, 混合动态系统, 自动机理论, Simulink

Abstract: An analysis of the accident characteristics in a system is proposed to research its accident process mechanism. The analysis indicates that there are hybrid characteristics which contain both discrete and continuous dynamic behaviors during an accident process. In view of the deficiency of simulating these hybrid characteristics with the current accident model, this paper presents a modeling method for accident processes based on hybrid system theory. The hybrid automata model of an accident process is provided, and the modeling and simulation is developed in the environment of Simulink/Stateflow. The combination of the system continuous mechanism with discrete state operation and their influence on each other can be achieved in this model. Then the simulation can provide the establishment of emergency treatment. Finally an example is discussed. The model simulates a dynamic process which starts at hazard and ends in accident or safety through emergency treatment. This example proves the validity of the proposed method.

Key words: accident, safety engineering, model, hybrid dynamic system, automata theory, Simulink

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