基于DTBN的动量轮备份系统剩余寿命预测研究

发布时间：2018-01-17 19:16

  本文关键词：基于DTBN的动量轮备份系统剩余寿命预测研究　出处：《航天控制》2016年03期 　论文类型：期刊论文

  更多相关文章： 备份门 寿命预测 贝叶斯网络 动态故障树

【摘要】：可靠性及剩余寿命分析是基于状态的系统维护(CBM)的基础,具有重要的指导意义。目前对部件级寿命预测的研究比较成熟,但对系统级寿命预测的研究甚少。本文基于动态故障树对动量轮备份系统进行可靠性及寿命预测分析,对现有文献中备份部件失效概率密度的描述方法进行了改进,以满足当t→∞时累积失效概率和等于1,并将改进后的部件失效概率密度描述方法结合离散时间贝叶斯网络(DTBN)对备份门的求解进行了分析。最后,以动量轮备份系统为实例进行可靠性及寿命预测分析。
[Abstract]:Reliability and residual life analysis is the basis of CBM (system maintenance system based on state) and has important guiding significance. At present, the research on component life prediction is mature. However, there is little research on system life prediction. In this paper, the reliability and life prediction analysis of momentum wheel backup system based on dynamic fault tree is carried out. The method of describing the failure probability density of backup parts in the existing literature is improved to satisfy the requirement of t. 鈫扵he cumulative failure probability sum of 鈭，

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