Multi-Hierarchical Functional Directed Graph Modeling Method for Aircraft System Fault Diagnosis
Multi-Hierarchical Functional Directed Graph Modeling Method for Aircraft System Fault Diagnosis
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DOI：
10.4028/www.scientific.net/amm.541-542.1467
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发表时间：
2014-03
期刊：
影响因子：
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通讯作者：
Yan Su;Peng Liu
中科院分区：
文献类型：
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作者：
Yan Su;Peng Liu
针对混杂系统在缺乏经验知识和历史知识的情况下出现新故障时的诊断问题，研究了基于图论和模糊理论，结合功能故障分析（FFA）理论和故障模式与影响分析（FMEA）理论的半定量故障诊断方法。针对飞机系统故障诊断问题，提出了一种多层次功能有向图建模方法。以某型航空发动机短舱防冰子系统为例，详细介绍了MHFDG建模方法。所提出的建模方法适用于新开发的混合系统的故障诊断。
In order to diagnosing new fault for hybrid system which is lack of experiential knowledge and historic knowledge, semi-quantitative fault diagnosis method based on graph theory and fuzzy theory combined with functional fault analysis (FFA) theories and Failure Mode and Effects Analysis (FMEA) is studied. And a multi-hierarchical functional directed graph modeling method is proposed for aircraft system fault diagnosis. Nacelle Anti-Ice subsystem of an aero engine is taken as a specific application to present the detailed MHFDG modeling method. The proposed modeling method is suitable for fault diagnosis of newly developed hybrid system.