On the use of attractor dimension as a feature in structural health monitoring

Mechanical Systems and Signal Processing
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Abstract

Recent works in the vibration-based structural health monitoring community have emphasised the use of correlation dimension as a discriminating statistic in seperating a damaged from undamaged response. This paper explores the utility of attractor dimension as a 'feature' and offers some comparisons between different metrics reflecting dimension. This focus is on evaluating the performance of two different measures of dimension as damage indicators in a structural health monitoring context. Results indicate that the correlation dimension is probably a poor choice of statistic for the purpose of signal discrimination. Other measures of dimension may be used for the same purposes with a higher degree of statistical reliability. The question of competing methodologies is placed in a hypothesis testing framework and answered with experimental data taken from a cantilivered beam.
Publication type Article
Publication Subtype Journal Article
Title On the use of attractor dimension as a feature in structural health monitoring
Series title Mechanical Systems and Signal Processing
DOI 10.1006/mssp.2002.1521
Volume 17
Issue 6
Year Published 2003
Language English
Contributing office(s) Patuxent Wildlife Research Center
Description 1305-1320
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Mechanical Systems and Signal Processing
First page 1305
Last page 1320
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