摘要
发动机排气系统作为民用飞机的重要系统之一,在整个航行过程中发挥至关重要的作用。本文收集某航空公司B757机队发动机排气系统历年故障数据,基于故障树分析(FTA)理论,建立故障树并进行简化分析。通过定性分析得出最小割集,通过定量分析得到故障发生的概率重要度以及结构重要度,并根据分析结果对B757发动机排气系统原本复杂的排故过程进行优化,进而提高维修效率,降低维修成本。
As one of the most important systems of civil aircraft, the engine exhaust system plays an important role in the whole process of navigation. In this paper, collected one airline＇s B757 engine exhaust system failure datas over the years, and simplified analyzed the datas based on FTA theory. Through qualitative analysis, the minimum cut sets were given, and probability importance and structural importance were obtained. At last, according to the analysis of B757 engine exhaust system, originally complex fault isolation process was optimized, that improve the maintenance efficiency and reduce maintenance cost.
出处
《航空科学技术》
2016年第10期41-45,共5页
Aeronautical Science & Technology
