Health monitoring of civil infrastructures by subspace system identification method: an overview

Structural health monitoring (SHM) is the main contributor of the future's smart city to deal with the need for safety, lower maintenance costs, and reliable condition assessment of structures. Among the algorithms used for SHM to identify the system parameters of structures, subspace system id...

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Main Authors: Shokravi, H., Bakhary, N., Rahimian Koloor, S. S., Petru, M.
Format: Article
Language:English
Published: MDPI AG 2020
Subjects:
Online Access:http://eprints.utm.my/86499/1/HoofarShokravi2020_HealthMonitoringofCivilInfrastructuresbySubspaceSystem.pdf
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author Shokravi, H.
Shokravi, H.
Bakhary, N.
Rahimian Koloor, S. S.
Petru, M.
author_facet Shokravi, H.
Shokravi, H.
Bakhary, N.
Rahimian Koloor, S. S.
Petru, M.
author_sort Shokravi, H.
collection ePrints
description Structural health monitoring (SHM) is the main contributor of the future's smart city to deal with the need for safety, lower maintenance costs, and reliable condition assessment of structures. Among the algorithms used for SHM to identify the system parameters of structures, subspace system identification (SSI) is a reliable method in the time-domain that takes advantages of using extended observability matrices. Considerable numbers of studies have specifically concentrated on practical applications of SSI in recent years. To the best of author's knowledge, no study has been undertaken to review and investigate the application of SSI in the monitoring of civil engineering structures. This paper aims to review studies that have used the SSI algorithm for the damage identification and modal analysis of structures. The fundamental focus is on data-driven and covariance-driven SSI algorithms. In this review, we consider the subspace algorithm to resolve the problem of a real-world application for SHM. With regard to performance, a comparison between SSI and other methods is provided in order to investigate its advantages and disadvantages. The applied methods of SHM in civil engineering structures are categorized into three classes, from simple one-dimensional (1D) to very complex structures, and the detectability of the SSI for different damage scenarios are reported. Finally, the available software incorporating SSI as their system identification technique are investigated.
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spelling utm.eprints-864992020-09-30T08:41:11Z http://eprints.utm.my/86499/ Health monitoring of civil infrastructures by subspace system identification method: an overview Shokravi, H. Shokravi, H. Bakhary, N. Rahimian Koloor, S. S. Petru, M. TJ Mechanical engineering and machinery Structural health monitoring (SHM) is the main contributor of the future's smart city to deal with the need for safety, lower maintenance costs, and reliable condition assessment of structures. Among the algorithms used for SHM to identify the system parameters of structures, subspace system identification (SSI) is a reliable method in the time-domain that takes advantages of using extended observability matrices. Considerable numbers of studies have specifically concentrated on practical applications of SSI in recent years. To the best of author's knowledge, no study has been undertaken to review and investigate the application of SSI in the monitoring of civil engineering structures. This paper aims to review studies that have used the SSI algorithm for the damage identification and modal analysis of structures. The fundamental focus is on data-driven and covariance-driven SSI algorithms. In this review, we consider the subspace algorithm to resolve the problem of a real-world application for SHM. With regard to performance, a comparison between SSI and other methods is provided in order to investigate its advantages and disadvantages. The applied methods of SHM in civil engineering structures are categorized into three classes, from simple one-dimensional (1D) to very complex structures, and the detectability of the SSI for different damage scenarios are reported. Finally, the available software incorporating SSI as their system identification technique are investigated. MDPI AG 2020-04 Article PeerReviewed application/pdf en http://eprints.utm.my/86499/1/HoofarShokravi2020_HealthMonitoringofCivilInfrastructuresbySubspaceSystem.pdf Shokravi, H. and Shokravi, H. and Bakhary, N. and Rahimian Koloor, S. S. and Petru, M. (2020) Health monitoring of civil infrastructures by subspace system identification method: an overview. Applied Sciences (Switzerland), 10 (8). ISSN 2076-3417 https://dx.doi.org/10.3390/APP10082786 DOI:10.3390/APP10082786
spellingShingle TJ Mechanical engineering and machinery
Shokravi, H.
Shokravi, H.
Bakhary, N.
Rahimian Koloor, S. S.
Petru, M.
Health monitoring of civil infrastructures by subspace system identification method: an overview
title Health monitoring of civil infrastructures by subspace system identification method: an overview
title_full Health monitoring of civil infrastructures by subspace system identification method: an overview
title_fullStr Health monitoring of civil infrastructures by subspace system identification method: an overview
title_full_unstemmed Health monitoring of civil infrastructures by subspace system identification method: an overview
title_short Health monitoring of civil infrastructures by subspace system identification method: an overview
title_sort health monitoring of civil infrastructures by subspace system identification method an overview
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/86499/1/HoofarShokravi2020_HealthMonitoringofCivilInfrastructuresbySubspaceSystem.pdf
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