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Damage Detection in Railway Truss Bridges Employing Data Sensitivity under Bayesian Framework: A Numerical Investigation
Joint Authors
Prajapat, Kanta
Ray-Chaudhuri, Samit
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-06
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
In general, for a structure it is quite difficult to get information about all of its modes through its dynamic response under ambient or external excitation.
Therefore, it is vital to exhaustively use the available information in the acquired modal data to detect any damage in the structures.
Further, in a Bayesian algorithm, it can be quite beneficial if a damage localization algorithm is first used to localize damage in the structure.
In this way, the number of unknown parameters in the Bayesian algorithm can be reduced significantly and thus, the efficiency of Bayesian algorithm can be enhanced.
This study exploits a mode shape and its derivative based approach to localize damage in truss type structures.
For damage quantification purpose, a parameter sensitivity based prediction error variance approach in Bayesian model updating is employed, which allows extracting maximum information available in the modal data.
This work employs the sensitivity based Bayesian algorithm to determine the posterior confidence in truss type railway bridges.
Results of the study show that the proposed approach can efficiently detect and quantify damage in railway truss bridges.
American Psychological Association (APA)
Prajapat, Kanta& Ray-Chaudhuri, Samit. 2017. Damage Detection in Railway Truss Bridges Employing Data Sensitivity under Bayesian Framework: A Numerical Investigation. Shock and Vibration،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1204804
Modern Language Association (MLA)
Prajapat, Kanta& Ray-Chaudhuri, Samit. Damage Detection in Railway Truss Bridges Employing Data Sensitivity under Bayesian Framework: A Numerical Investigation. Shock and Vibration No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1204804
American Medical Association (AMA)
Prajapat, Kanta& Ray-Chaudhuri, Samit. Damage Detection in Railway Truss Bridges Employing Data Sensitivity under Bayesian Framework: A Numerical Investigation. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1204804
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204804