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


Journal Article

Recent works in the vibration-based structural health monitoring community have emphasised the use of correlation dimension as a discriminating statistic in separating 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. © 2003 Elsevier Science Ltd. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Nichols, JM; Virgin, LN; Todd, MD; Nichols, JD

Published Date

  • January 1, 2003

Published In

Volume / Issue

  • 17 / 6

Start / End Page

  • 1305 - 1320

International Standard Serial Number (ISSN)

  • 0888-3270

Digital Object Identifier (DOI)

  • 10.1006/mssp.2002.1521

Citation Source

  • Scopus