Structural Health Monitoring Using Statistical Pattern Recognition Techniques
Top Cited Papers
- 7 February 2001
- journal article
- Published by ASME International in Journal of Dynamic Systems, Measurement, and Control
- Vol. 123 (4), 706-711
- https://doi.org/10.1115/1.1410933
Abstract
This paper casts structural health monitoring in the context of a statistical pattern recognition paradigm. Two pattern recognition techniques based on time series analysis are applied to fiber optic strain gauge data obtained from two different structural conditions of a surface-effect fast patrol boat. The first technique is based on a two-stage time series analysis combining Auto-Regressive (AR) and Auto-Regressive with eXogenous inputs (ARX) prediction models. The second technique employs an outlier analysis with the Mahalanobis distance measure. The main objective is to extract features and construct a statistical model that distinguishes the signals recorded under the different structural conditions of the boat. These two techniques were successfully applied to the patrol boat data clearly distinguishing data sets obtained from different structural conditions.Keywords
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