The invention provides an aero-engine whole system fault monitoring and identification method based on data driving. The method comprises the steps that engine multivariate time sequence data under all flight working conditions are collected; establishing an aero-engine full-system full-working-condition performance parameter system; establishing an aero-engine performance digital twin model; and performance parameters of the whole system and all working conditions of the engine are reconstructed, a high-dimensional performance parameter deviation value is calculated, and monitoring and recognition of faults of the whole system of the aero-engine are achieved. According to the method, the engine health management and the digital twinning technology are fused, the advantages of deep learning in mining the space-time relevance of engine high-dimensional time sequence data are utilized, an engine full-system full-working-condition performance digital twinning model based on data driving is provided, a whole-machine full-system hierarchical index system is established, and the engine full-system full-working-condition performance digital twinning model is established. Full-leg real-time state monitoring and fault recognition of the engine under dynamic working conditions and environmental conditions are achieved, and model and algorithm support is provided for aero-engine health management based on the digital twin technology.
本发明提供了基于数据驱动的航空发动机全系统故障监测与识别方法,包括:采集各个飞行工况下的发动机多元时序数据;建立航空发动机全系统全工况性能参数体系;建立航空发动机性能数字孪生模型;对发动机全系统、全工况性能参数重构,计算高维性能参数偏差值,实现航空发动机全系统故障的监测与识别。本发明围绕发动机健康管理与数字孪生技术相融合,利用深度学习在挖掘发动机高维时序数据的时空关联性方面的优势,提出一种基于数据驱动的发动机全系统全工况性能数字孪生模型,并且建立整机全系统层次化指标体系,实现发动机在动态工况和环境条件下全航段实时状态监测与故障识别,为基于数字孪生技术的航空发动机健康管理提供模型与算法支持。
Aero-engine whole system fault monitoring and identification method based on data driving
基于数据驱动的航空发动机全系统故障监测与识别方法
2022-12-23
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / 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 / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |
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