The invention provides an aircraft landing gear safety diagnosis method, which comprises the steps of extracting historical data of an aircraft landing gear system, and obtaining a fault rate of each element in each subsystem according to a preset proportional risk model; according to a preset algorithm, calculating a probability value and an evaluation value of each subsystem corresponding to a safe state, a secondary safe state and a dangerous state; obtaining the actual fault state of each subsystem, and revising the evaluation value of each subsystem according to the obtained actual fault state of each subsystem; associating and establishing a Bayesian network according to the subsystems of the aircraft landing gear system; and determining the system safety degree of the aircraft landing gear system according to a Bayesian network and the revised evaluation value. By implementing the method, multiple information sources can be fused, the complexity of the aircraft landing gear system is combined, the safety value of the aircraft landing gear system is quantified, and the safety of the aircraft landing gear system is accurately and quickly diagnosed and evaluated.

    本发明提供一种飞机起落架安全性诊断方法,包括:提取所述飞机起落架系统的历史数据,并根据预设的比例风险模型,得到各子系统内每一元件的故障率;依据预设的算法,计算出每一子系统分别对应于安全状态、次安全状态和危险状态下的概率值和评估值;获取各子系统的实际故障状态,并根据所述获取到的各子系统的实际故障状态,修订各子系统的评估值;根据飞机起落架系统子系统相关联并建立贝叶斯网络;根据贝叶斯网络及所述修订的评估值,确定所述飞机起落架系统的系统安全度。实施本发明,能够融合多种信息来源,结合飞机起落架系统的复杂性,量化飞机起落架系统的安全性数值,对飞机起落架系统的安全性进行准确及快速的诊断和评估。


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    Titel :

    Aircraft landing gear safety diagnosis method and device


    Weitere Titelangaben:

    飞机起落架安全性诊断方法和装置


    Beteiligte:
    LIU DONGSHENG (Autor:in) / CHEN YAHUI (Autor:in) / LIU YANNI (Autor:in)

    Erscheinungsdatum :

    2022-09-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G06K Erkennen von Daten , RECOGNITION OF DATA



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