摘要
分析了多阶段任务系统(PMS)可靠性分析中传统二元决策图(BDD)建模方法的不足,提出了一种将多阶段任务失效事件分解为互不相容的阶段失效事件,然后分别建立可靠性BDD模型的新方法。通过该方法建立的PMS可靠性BDD模型不但可以计算总体任务失效概率,同时也能计算任务在各阶段发生失效的概率。最后,给出了一个算例,验证了该算法的有效性。
In view of defects in the traditional binary decision diagram （BDD） models for reliability a- nalysis of phased mission system （PMS）, this paper proposes a new BDD-based method for PMS relia- bility analysis. By this method, the mission failure can be decomposed to several inconsistent phase failures, so as to establish a phase failure BDD model. The BDD model can be used to calculate not only the probability of mission failure, but also the probability of mission failing in each phases. Fi- nally, an example is given to verify the effectiveness of the method.
出处
《海军工程大学学报》
CAS
北大核心
2012年第4期97-100,共4页
Journal of Naval University of Engineering
关键词
可靠性
多阶段任务系统
二元决策图
reliability
phased mission system
binary decision diagram
