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Efficient model updating and health monitoring methodology using incomplete modal data without mode matching
Yuen K.-V.1; Beck J.L.2; Katafygiotis L.S.3
2006
Source PublicationStructural Control and Health Monitoring
ISSN15452255
Volume13Issue:1Pages:91
Abstract

A methodology is presented for Bayesian structural model updating using noisy incomplete modal data corresponding to natural frequencies and partial mode shapes of some of the modes of a structural system. The procedure can be used to find the most probable model within a specified class of structural models, based on the incomplete modal data, as well as the most probable values of the system natural frequencies and the full system mode shapes. The method does not require matching measured modes with corresponding modes from the structural model, which is in contrast to many existing methods. To find the most probable values of the structural model parameters and system modal parameters, the method uses an iterative scheme involving a series of coupled linear optimization problems. Furthermore, it does not require solving the eigenvalue problem of any structural model; instead, the eigenvalue equations appear in the prior probability distribution to provide soft constraints. The method appears to be computationally efficient and robust, judging from its successful application to noisy simulated data for a ten-storey building model and for a three-dimensional braced-frame model. This latter example is also used to demonstrate an application to structural health monitoring. Copyright © 2005 John Wiley & Sons, Ltd.

KeywordBayesian Inference Model Updating Structural Health Monitoring System Identification
DOI10.1002/stc.144
URLView the original
Indexed BySCI
Language英语
WOS Research AreaConstruction & Building Technology ; Engineering ; Instruments & Instrumentation
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Instruments & Instrumentation
WOS IDWOS:000235587600007
The Source to ArticleScopus
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Cited Times [WOS]:94   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Affiliation1.Faculty of Science and Technology, University of Macau, Macau
2.Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, U.S.A.
3.Department of Civil Engineering, Hong Kong University of Science and Technology, Hong Kong
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Yuen K.-V.,Beck J.L.,Katafygiotis L.S.. Efficient model updating and health monitoring methodology using incomplete modal data without mode matching[J]. Structural Control and Health Monitoring,2006,13(1):91.
APA Yuen K.-V.,Beck J.L.,&Katafygiotis L.S..(2006).Efficient model updating and health monitoring methodology using incomplete modal data without mode matching.Structural Control and Health Monitoring,13(1),91.
MLA Yuen K.-V.,et al."Efficient model updating and health monitoring methodology using incomplete modal data without mode matching".Structural Control and Health Monitoring 13.1(2006):91.
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