郭星.分离式飞行数据记录与跟踪系统可靠性分析[J].民用飞机设计与研究,2018,(4):60-
分离式飞行数据记录与跟踪系统可靠性分析
Reliability Analysis of Separate Flight Data Recording and Tracking System
  
DOI:10.19416/j.cnki.1674-9804.2018.04.011
中文关键词:飞行数据记录器  飞行记录系统  飞行跟踪系统  分离式  故障树分析  可靠性分析
英文关键词:flight data recorder  flight recording system  flight tracking system  separate  fault tree analysis  reliability analysis
基金项目:
作者单位
郭星 南京航空航天大学航空宇航学院,飞行器环境控制与生命保障工业和信息化部重点实验室南京 210016 
中文摘要:采用故障树分析方法分析了新型分离式飞行数据记录与跟踪系统的可靠性。通过搭建以系统失效为顶事件的故障树,获得了最小割集、顶事件的发生概率以及各分系统的失效概率排序。通过对比各分系统的关键重要度,找出了分离式飞行数据记录与跟踪系统中最薄弱的部分,并进行了改进。结果表明,缓降分系统对总系统可靠性的影响最大,通过多充气模块可以显著提高缓降系统的可靠性。但当充气模块多于2套时,增加充气模块并不能进一步明显提高系统的可靠性。
英文摘要:The fault tree analysis was utilized to analyze the reliability of a new separate flight data recording and tracking system. The fault tree with system failure as the top event was built, and the probability of minimal cut set, the occurrence probability of top event and the sequence of fault probability of each subsystem were obtained. By comparing the criticality importance of each subsystem, the most vulnerable part of the separate flight data recording and tracking system was located, and then the system was optimized. The results show that the soft-landing system has the greatest impact on the system reliability. The reliability of soft-landing system can be significantly improved with the multi-inflation module, but the reliability of soft-landing system is not significantly improved when the number of inflatable module are more than two sets.
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