A Probabilistic Damage Identification Approach for Structures under Unknown Excitation and with Measurement Uncertainties
Joint Authors
Source
Journal of Applied Mathematics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-12
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Recently, an innovative algorithm has been proposed by the authors for the identification of structural damage under unknown external excitations.
However, identification accuracy of this proposed deterministic algorithm decreases under high level of measurement noise.
A probabilistic approach is therefore proposed in this paper for damage identification considering measurement noise uncertainties.
Based on the former deterministic algorithm, the statistical values of the identified structural parameters are estimated using the statistical theory and a damage index is defined.
The probability of identified structural damage is further derived based on the reliability theory.
The unknown external excitations to the structure are also identified by statistical evaluation.
A numerical example of the identification of structural damage of a multistory shear-type building and its unknown excitation shows that the proposed probabilistic approach can accurately identify structural damage and the unknown excitations using only partial measurements of structural acceleration responses contaminated by intensive measurement noises.
American Psychological Association (APA)
Lei, Ying& Su, Ying& Shen, Wen-ai. 2013. A Probabilistic Damage Identification Approach for Structures under Unknown Excitation and with Measurement Uncertainties. Journal of Applied Mathematics،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-496485
Modern Language Association (MLA)
Lei, Ying…[et al.]. A Probabilistic Damage Identification Approach for Structures under Unknown Excitation and with Measurement Uncertainties. Journal of Applied Mathematics No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-496485
American Medical Association (AMA)
Lei, Ying& Su, Ying& Shen, Wen-ai. A Probabilistic Damage Identification Approach for Structures under Unknown Excitation and with Measurement Uncertainties. Journal of Applied Mathematics. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-496485
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496485