Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space

Article

Nguyen, Khac-Duy, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2019. "Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space." Structural Health Monitoring: an international journal. 18 (1), pp. 49-65. https://doi.org/10.1177/1475921718809471
Article Title

Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space

ERA Journal ID3556
Article CategoryArticle
AuthorsNguyen, Khac-Duy (Author), Chan, Tommy H. T. (Author), Thambiratnam, David P. (Author) and Nguyen, Andy (Author)
Journal TitleStructural Health Monitoring: an international journal
Journal Citation18 (1), pp. 49-65
Number of Pages17
Year2019
Place of PublicationUnited Kingdom
ISSN1475-9217
1741-3168
Digital Object Identifier (DOI)https://doi.org/10.1177/1475921718809471
Abstract

Damage identification for complex structures is a challenging task due to large amount of structural elements, limited number of measured modes and uncertainties in referenced numerical models. This paper presents a study on enhancing the effectiveness of modal characteristics correlation methods for damage identification of complex structures. Firstly, a correlation method using change in ratio of modal strain energy-eigenvalue (MSEE change) is introduced. Damage information is determined via a forward approach by optimizing the correlation level between the patterns of the analytical and measured MSEE changes. Different from traditional optimization-based forward methods that require accurate numerical models, damage sensitivity coefficients of MSEE are directly estimated from experimental modal information. To enhance the damage identification capability, both elemental MSEE and total MSEE components are examined in the correlation function. Secondly, a sensitivity-weighted search space (SWSS) scheme incorporated with genetic algorithm (GA) is developed to overcome the ill-posed problem that causes false detection errors. Finally, the correlation method and the enhanced technique are experimentally tested on a complex truss model with nearly 100 elements. To deal with the huge number of degrees of freedom in this structure, a multi-layout roving test with the adoption of redundant channels is designed, and a three-criterion strategy is used for the selection of modes. Results demonstrate the effectiveness of the proposed damage assessment framework to locate and estimate damage in complex truss structures.

KeywordsDamage identification, modal strain energy, correlation-based method, genetic algorithm, search space, complex truss structure
ANZSRC Field of Research 2020400510. Structural engineering
Public Notes

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Byline AffiliationsQueensland University of Technology
School of Civil Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
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Le, N. T., Thambiratnam, D. P., Nguyen, A. and Chan, T. H. T. 2019. "A new method for locating and quantifying damage in beams from static deflection changes." Engineering Structures. 180, pp. 779-792. https://doi.org/10.1016/j.engstruct.2018.11.071
Model updating of real structures with ambient vibration data
Kodikara, K. A. T. L., Chan, T. H. T., Nguyen, T. and Thambiratnam, D. P.. 2016. "Model updating of real structures with ambient vibration data." Journal of Civil Structural Health Monitoring. 6 (3), pp. 329-341. https://doi.org/10.1007/s13349-016-0178-3
Development of a cost-effective and flexible vibration DAQ system for long-term continuous structural health monitoring
Nguyen, Theanh, Chan, Tommy H. T., Thambiratnam, David P. and King, Les. 2015. "Development of a cost-effective and flexible vibration DAQ system for long-term continuous structural health monitoring." Mechanical Systems and Signal Processing. 64-65, pp. 313-324. https://doi.org/10.1016/j.ymssp.2015.04.003
Synergic identification of prestress force and moving load on prestressed concrete beam based on virtual distortion method
Xiang, Ziru, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Theanh. 2016. "Synergic identification of prestress force and moving load on prestressed concrete beam based on virtual distortion method." Smart Structures and Systems. 17 (6), pp. 917-933. https://doi.org/10.12989/sss.2016.17.6.917
Structural Deterioration Detection Using Enhanced Autoregressive Residuals
Monavari, Benyamin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2018. "Structural Deterioration Detection Using Enhanced Autoregressive Residuals." International Journal of Structural Stability and Dynamics. 18 (12), pp. 1-19. https://doi.org/10.1142/S0219455418501602
Model updating incorporating measured response uncertainties and confidence levels of tuning parameters
Kodikara, K.A. Tharindu L., Chan, Tommy H.T., Nguyen, Andy and Thambiratnam, David P.. 2016. "Model updating incorporating measured response uncertainties and confidence levels of tuning parameters." International Journal of Lifecycle Performance Engineering. 2 (1/2), pp. 61-78. https://doi.org/10.1504/IJLCPE.2016.082712
Prestress evaluation in prestressed concrete plate-like structures
Pathirage, Thisara S., Chan, Tommy H. T., Thambiratnam, David P., Nguyen, Andy and Moragaspitiya, H. N. P.. 2018. "Prestress evaluation in prestressed concrete plate-like structures." International Journal of Lifecycle Performance Engineering. 2 (3/4), pp. 127-143. https://doi.org/10.1504/IJLCPE.2018.094855
Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2019. "Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis." Structural Health Monitoring: an international journal. 18 (1), pp. 20-34. https://doi.org/10.1177/1475921718808462
Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data
Nguyen, Andy, Kodikara, K. A. Tharindu Lakshitha, Chan, Tommy H. T. and Thambiratnam, David P.. 2019. "Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data." Structural Health Monitoring: an international journal. 18 (1), pp. 5-19. https://doi.org/10.1177/1475921718799984
Vibration characteristics and damage detection in a suspension bridge
Wickramasinghe, Wasanthi R., Thambiratnam, David P., Chan, Tommy H. T. and Nguyen, Theanh. 2016. "Vibration characteristics and damage detection in a suspension bridge." Journal of Sound and Vibration. 375, pp. 254-274. https://doi.org/10.1016/j.jsv.2016.04.025
Capacity Estimation of Beam-Like Structures Using Substructural Method
Jamali, Shojaeddin, Chan, Tommy H. T., Koo, Ki-Young, Nguyen, Andy and Thambiratnam, David P.. 2018. "Capacity Estimation of Beam-Like Structures Using Substructural Method." International Journal of Structural Stability and Dynamics. 18 (12), pp. 1-17. https://doi.org/10.1142/S0219455418501626
Moving force identification based on modified preconditioned conjugate gradient method
Chen, Zhen, Chan, Tommy H. T. and Nguyen, Andy. 2018. "Moving force identification based on modified preconditioned conjugate gradient method." Journal of Sound and Vibration. 423, pp. 100-117. https://doi.org/10.1016/j.jsv.2017.11.034
Method development of damage detection in asymmetric buildings
Wang, Yi, Thambiratnam, David P., Chan, Tommy H.T. and Nguyen, Andy. 2018. "Method development of damage detection in asymmetric buildings." Journal of Sound and Vibration. 413, pp. 41-56. https://doi.org/10.1016/j.jsv.2017.10.015
Prestress and excitation force identification in a prestressed concrete box–girder bridge
Xiang, Ziru, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2017. "Prestress and excitation force identification in a prestressed concrete box–girder bridge." Computers and Concrete. 20 (5), pp. 617-625. https://doi.org/10.12989/cac.2017.20.5.617
Toward effective structural identification of medium-rise building structures
Nguyen, A., Kodikara, K. A. T. L., Chan, T. H. T. and Thambiratnam, D. P.. 2018. "Toward effective structural identification of medium-rise building structures." Journal of Civil Structural Health Monitoring. 8 (1), pp. 63-75. https://doi.org/10.1007/s13349-017-0259-y
Modelling techniques for structural evaluation for bridge assessment
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2018. "Modelling techniques for structural evaluation for bridge assessment." Journal of Civil Structural Health Monitoring. 8 (2), pp. 271-283. https://doi.org/10.1007/s13349-018-0269-4
Damage detection in asymmetric buildings using vibration-based techniques
Wang, Y., Thambiratnam, D. P., Chan, T. H. T. and Nguyen, A.. 2018. "Damage detection in asymmetric buildings using vibration-based techniques." Structural Control and Health Monitoring. 25 (5), pp. 1-19. https://doi.org/10.1002/stc.2148
Response of tall buildings with symmetric setbacks under blast loading
Jayatilake, I. N., Dias, W. P. S., Jayasinghe, M. T. R. and Thambiratnam, D. P.. 2010. "Response of tall buildings with symmetric setbacks under blast loading." Journal of the National Science Foundation of Sri Lanka. 38 (2), pp. 115-123. https://doi.org/10.4038/jnsfsr.v38i2.2043