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A baseline-free damage detection method using VBI incomplete measurement data


Mousavi, M and Holloway, D and Olivier, JC and Gandomi, AH, A baseline-free damage detection method using VBI incomplete measurement data, Measurement, 174 Article 108957. ISSN 0263-2241 (2021) [Refereed Article]

Copyright Statement

Copyright 2021 Elsevier Ltd.

DOI: doi:10.1016/j.measurement.2020.108957


A novel baseline-free method for damage detection of vehicle-bridge interaction (VBI) systems is proposed. The proposed method is physics-based, in contrast to many prevailing approaches, which are purely data-based techniques. It uses incomplete measurement data by incorporating the static condensation transformation matrix into the equations to obtain the final formulas. However, the static condensation of the damaged beam is not known a priori. Therefore, it is shown analytically that the static condensation transformation matrix of the undamaged beam can be used instead of the one corresponding to the damaged beam. This has been confirmed through numerical simulations for different boundary conditions of the beam. Various factors are studied numerically in order to demonstrate the robustness of the proposed method, including road roughness, boundary conditions, variable moving mass velocity and measurement noise. The results demonstrate the capability of the proposed method in damage detection of beam-type structures subjected to a moving mass in the presence of 5% noise. It has also been shown that averaging the results obtained from noisy data collected through several repetitions of the experiment can improve the final prediction of the location and severity of damage.

Item Details

Item Type:Refereed Article
Keywords:change detection, structural damage detection, vehicle bridge interaction, damage detection, static condensation, incomplete measurement
Research Division:Engineering
Research Group:Civil engineering
Research Field:Complex civil systems
Objective Division:Construction
Objective Group:Building management and services
Objective Field:Civil building management and services
UTAS Author:Mousavi, M (Mr Mohsen Mousavi)
UTAS Author:Holloway, D (Associate Professor Damien Holloway)
UTAS Author:Olivier, JC (Professor JC Olivier)
ID Code:142585
Year Published:2021
Deposited By:Engineering
Deposited On:2021-01-28
Last Modified:2021-02-10

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