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Perspectives of Second-Order Blind Identification for Operational Modal Analysis of Civil Structures
Author
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Innovative methods for output-only estimation of the modal properties of civil structures are based on blind source separation techniques.
In the present paper attention is focused on the second-order blind identification (SOBI) algorithm and the influence of its analysis parameters on computational time and accuracy of modal parameter estimates.
These represent key issues in view of the automation of the algorithm and its integration within vibration-based monitoring systems.
The herein reported analyses and results provide useful hints for reduction of computational time and control of accuracy of estimates.
The latter topic is of interest in the case of single modal identification tests, too.
A criterion for extraction of accurate modal parameter estimates is identified and applied to selected experimental case studies.
They are representative of the different levels of complexity that can be encountered during real modal tests.
The obtained results point out that SOBI can provide accurate estimates and it can also be automated, confirming that it represents a profitable alternative for output-only modal analysis and vibration-based monitoring of civil structures.
American Psychological Association (APA)
Rainieri, C.. 2014. Perspectives of Second-Order Blind Identification for Operational Modal Analysis of Civil Structures. Shock and Vibration،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1048014
Modern Language Association (MLA)
Rainieri, C.. Perspectives of Second-Order Blind Identification for Operational Modal Analysis of Civil Structures. Shock and Vibration No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1048014
American Medical Association (AMA)
Rainieri, C.. Perspectives of Second-Order Blind Identification for Operational Modal Analysis of Civil Structures. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1048014
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048014