Ground resonance monitoring for hinged-blades helicopters: statistical CUSUM approach

Ahmed Jhinaoui 1 Laurent Mevel 1, * Joseph Morlier 2 Leonardo Sanches 2
* Corresponding author
1 I4S - Statistical Inference for Structural Health Monitoring
IFSTTAR/COSYS - Département Composants et Systèmes, Inria Rennes – Bretagne Atlantique
Abstract : Works on the problem of helicopter ground resonance and the prediction of related instability zones relay generally on off-line modal analysis, neglecting thus the problem of model's uncertainties. In this paper, an on-line algorithm of detection, built on the CUSUM test, is proposed. A numerical application to simulation data is then reported. The mechanical model developed by[17] is used for simulation and is extended to the class of helicopters with damped structures.
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Ahmed Jhinaoui, Laurent Mevel, Joseph Morlier, Leonardo Sanches. Ground resonance monitoring for hinged-blades helicopters: statistical CUSUM approach. [Research Report] RR-7431, INRIA. 2010. ⟨inria-00527750⟩

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