An evaluation of damage features extraction from attractors in structural health monitoring

Chao Xu, Dong Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Structural health monitoring provides accurate information about structure's safety and integrity. The vibration-based structural health monitoring involves extracting a feature which robustly quantifies damage induced change to the structure. Recent work has focused on damage features extracted from the state space attractor of the structural response. Some of these features involve prediction error and local variance ratio. In the present paper, a five degree of freedom spring damper system forced by a Lorenz excitation is used to evaluate these two typical damage features. Their ability of identification damage level and location is characterized and compared.

Original languageEnglish
Title of host publicationVibration, Structural Engineering and Measurement I
Pages738-741
Number of pages4
DOIs
StatePublished - 2012
Event2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011 - Shanghai, China
Duration: 21 Oct 201123 Oct 2011

Publication series

NameApplied Mechanics and Materials
Volume105-107
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011
Country/TerritoryChina
CityShanghai
Period21/10/1123/10/11

Keywords

  • Attractor
  • Damage feature
  • Prediction error
  • Structural health monitoring

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