A Hybrid Structural Health Monitoring Approach Based on Reduced-Order Modelling and Deep Learning

Recent advances in sensor technologies coupled with the development of machine/deep learning strategies are opening new frontiers in Structural Health Monitoring (SHM). Dealing with structural vibrations recorded with pervasive sensor networks, SHM aims at extracting meaningful damage-sensitive feat...

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Bibliographic Details
Main Authors: Luca Rosafalco, Alberto Corigliano, Andrea Manzoni, Stefano Mariani
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/42/1/67
Description
Summary:Recent advances in sensor technologies coupled with the development of machine/deep learning strategies are opening new frontiers in Structural Health Monitoring (SHM). Dealing with structural vibrations recorded with pervasive sensor networks, SHM aims at extracting meaningful damage-sensitive features from the data, shaped as multivariate time series, and taking real-time decisions concerning the safety level. Within this context, we discuss an approach able to detect and localize a structural damage avoiding any pre-processing of the acquired data. The method takes advantage of the capability of Deep Learning of Fully Convolutional Networks, trained during an offline SHM phase. As a hybrid model- and data-based solution is looked for, Reduced Order Models are also built in the offline phase to reduce the computational burden of the whole monitoring approach. Through a numerical benchmark test, we show how the proposed method can recognize and localize different damage states.
ISSN:2504-3900