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

Mechanical Systems and Signal Processing

6082_Nichols.pdf
By:
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DOI: 10.1006/mssp.2002.1521

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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.

Additional Publication Details

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
First page:
1305
Last page:
1320
Number of Pages:
16