Development and experimental validation of a prototype system for Machine Learning based SHM in composite aerostructures

P. E. Spiliotopoulos, F. T. Fera, I. E. Saramantas, J. S. Sakellariou, S. D. Fassois, Y. Ofir, I. Kressel, M. Tur, P. Papadopoulos, F. Giannopoulos, C. Spandonidis

Research output: Contribution to journalConference articlepeer-review


The development and experimental validation of a Machine Learning (ML) vibration based Structural Health Monitoring (SHM) prototype system for composite aerostructures operating under uncertainty is presented. Following initial training, it is intended to operate autonomously, in almost real-time, without interrupting normal operation, relying on a limited number of acceleration and strain measurements from properly selected locations on the aerostructure. It is equipped with a multi-level information fusion methodology comprising multiple sensor technologies and diagnostic algorithms for optimized SHM performance in terms of damage detection and characterization. Through its flexible software, the system provides multiple options of ML based SHM methods targeting wide applicability to various types of structures. The system is validated based on numerous experiments with healthy and damaged full-scale composite bonded spars operating under multiple uncertainty factors. Its diagnostic performance indicates that the current progress in hardware and robust vibration-based Machine Learning algorithms may lead to compact, effective, and low cost SHM systems for composite aerostructures under normal operating conditions.

Original languageEnglish
Article number012025
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 2024
Event7th International Conference of Engineering Against Failure, ICEAF 2023 - Spetses Island, Greece
Duration: 21 Jun 202323 Jun 2023


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