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Model updating using noisy response measurements without knowledge of the input spectrum
Yuen K.-V.1; Katafygiotis L.S.2
Source PublicationEarthquake Engineering and Structural Dynamics

A new probabilistic model identification methodology is proposed using measured response time histories only. The proposed approach requires that the number of independent measurements is larger than the number of independent excitations. Under this condition, no input measurements or any information regarding the stochastic model of the input is required. Specifically, the method does not require the response to be stationary and does not assume any knowledge of the parametric form of the spectral density of the input. Therefore, the method has very wide applicability. The proposed approach allows one to obtain not only the most probable values of the updated model parameters but also their associated uncertainties using only one set of response data. It is found that the updated probability distribution can be well approximated by a Gaussian distribution centered at the most probable values of the parameters. Examples are presented to illustrate the proposed method. Copyright © 2004 John Wiley & Sons, Ltd.

KeywordBayesian Inference Fast Fourier Transform Frequency Domain Analysis Model Updating Response Prediction System Identification
URLView the original
Indexed BySCI
WOS Research AreaEngineering
WOS SubjectEngineering, Civil ; Engineering, Geological
WOS IDWOS:000226637300004
The Source to ArticleScopus
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Cited Times [WOS]:37   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
Affiliation1.Hong Kong Univ Sci & Technol, Dept Civil Engn, Kowloon, Hong Kong, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Macao, Macao
Recommended Citation
GB/T 7714
Yuen K.-V.,Katafygiotis L.S.. Model updating using noisy response measurements without knowledge of the input spectrum[J]. Earthquake Engineering and Structural Dynamics,2005,34(2):167.
APA Yuen K.-V.,&Katafygiotis L.S..(2005).Model updating using noisy response measurements without knowledge of the input spectrum.Earthquake Engineering and Structural Dynamics,34(2),167.
MLA Yuen K.-V.,et al."Model updating using noisy response measurements without knowledge of the input spectrum".Earthquake Engineering and Structural Dynamics 34.2(2005):167.
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