Research Progress in Aero-Engine Gas-Path Electrostatic Monitoring Technology

Shixuan Li; Zhigao Xu; Liushuo Fu; Yu Hu

doi:10.6919/ICJE.202609_12(9).0015

Authors

Shixuan Li Rocket Force University of Engineering, Xi’an 710025, China
Zhigao Xu Rocket Force University of Engineering, Xi’an 710025, China
Liushuo Fu Rocket Force University of Engineering, Xi’an 710025, China
Yu Hu Rocket Force University of Engineering, Xi’an 710025, China

DOI:

https://doi.org/10.6919/ICJE.202609_12(9).0015

Keywords:

Electrostatic Monitoring Technology; Aero-engine; Electrostatic Sensor; Electrostatic Signal.

Abstract

Gas-path electrostatic monitoring for aero-engines provides a new source of information for early fault detection and health management by sensing charged particles generated during fault evolution. This paper reviews the development of gas-path electrostatic monitoring technology, including particle charging and electrostatic induction mechanisms, sensor design, weak-signal denoising, feature extraction, health baseline modeling, and sensor-array-based inversion. Its applications to rub-impact, ablation, carbon deposition, oil leakage, and foreign object monitoring are also discussed. Key challenges are further summarized, including quantitative characterization of fault severity, particle-cloud inversion, dynamic baseline construction, scarcity of real fault samples, standardization, and airworthiness validation. Finally, future research directions are outlined, with emphasis on multiphysics modeling, intelligent sensing, multisource information fusion, and remaining useful life prediction.

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