14–18 Sept 2025
Piraeus, Greece
Europe/Athens timezone

Suitability of Parametric and Nonparametric Statistical Methods for Turboprop Engine Diagnostics

16 Sept 2025, 10:05
20m
Statistical Process Monitoring Statistical Process Monitoring

Speaker

Zuzana Hübnerová (Brno University of Technology)

Description

Turboprop engines undergo regular inspections, yet continuous analysis of in-flight sensor data provides an opportunity for earlier detection of wear and degradation—well before scheduled maintenance. The choice of statistical method plays a crucial role in ensuring diagnostic accuracy and interpretability. In this study, we compare the performance of traditional parametric methods—specifically regression models—with a nonparametric, depth-based functional data approach for anomaly detection. We evaluate each method’s ability to identify deviations in engine behavior that may signal early-stage faults or potential sensor errors. Using a real-world engine performance dataset, we assess the sensitivity, applicability at different stages of the diagnostic analysis, and practical interpretability of both approaches. The results offer recommendations for applying these methods in safety-critical aircraft engine condition monitoring.

Classification Both methodology and application
Keywords Aircraft, Functional depth, Regression model

Primary author

Zuzana Hübnerová (Brno University of Technology)

Co-author

Prof. Jaroslav Juračka (Faculty of Mechanical Engineering, Brno University of Technology)

Presentation materials

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