An assessment of frequency response curvature methods for damage localization

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In structural health monitoring (SHM), the detection of damage in an earlier stage is an important objective in order to reduce or avoid the possibility of structural failure with the resulting costs and/or longperiods of interruption of operation. The existing SHM techniques based on the changes of the structural dynamic properties have been recognized, by the research community, as being very useful due to their non-destructive and non-invasive characteristics. Various techniques have been developed and applied in the recent years, the focus of attention being not only the ability to detect damage but also to locate it and quantify its severity by using an indicator. The main objective of this work is to assess the efficiency of Frequency Response Curvature Methods for the localization of damage in early stages. A new approach to minimize the effect of noise, existent in the measured Frequency Response Functions (FRFs) that will beused in these methods, is presented. The case studies are based on numerical simulated data.
Original languageEnglish
Title of host publicationProceedings of ISMA2014 including USD2014
Pages453-468
Publication statusPublished - 2014
EventInternational Conference on Modal Analysis Noise and Vibration Engineering (ISMA 2014) -
Duration: 1 Jan 2014 → …

Conference

ConferenceInternational Conference on Modal Analysis Noise and Vibration Engineering (ISMA 2014)
Period1/01/14 → …

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Structural health monitoring
Frequency response
Structural dynamics
Costs

Cite this

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title = "An assessment of frequency response curvature methods for damage localization",
abstract = "In structural health monitoring (SHM), the detection of damage in an earlier stage is an important objective in order to reduce or avoid the possibility of structural failure with the resulting costs and/or longperiods of interruption of operation. The existing SHM techniques based on the changes of the structural dynamic properties have been recognized, by the research community, as being very useful due to their non-destructive and non-invasive characteristics. Various techniques have been developed and applied in the recent years, the focus of attention being not only the ability to detect damage but also to locate it and quantify its severity by using an indicator. The main objective of this work is to assess the efficiency of Frequency Response Curvature Methods for the localization of damage in early stages. A new approach to minimize the effect of noise, existent in the measured Frequency Response Functions (FRFs) that will beused in these methods, is presented. The case studies are based on numerical simulated data.",
author = "Almeida, {Raquel Albuquerque Soares Br{\'a}s de} and Urgueira, {Ant{\'o}nio Paulo Vale}",
year = "2014",
language = "English",
pages = "453--468",
booktitle = "Proceedings of ISMA2014 including USD2014",

}

Almeida, RASBD & Urgueira, APV 2014, An assessment of frequency response curvature methods for damage localization. in Proceedings of ISMA2014 including USD2014. pp. 453-468, International Conference on Modal Analysis Noise and Vibration Engineering (ISMA 2014), 1/01/14.

An assessment of frequency response curvature methods for damage localization. / Almeida, Raquel Albuquerque Soares Brás de; Urgueira, António Paulo Vale.

Proceedings of ISMA2014 including USD2014. 2014. p. 453-468.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

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AU - Urgueira, António Paulo Vale

PY - 2014

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AB - In structural health monitoring (SHM), the detection of damage in an earlier stage is an important objective in order to reduce or avoid the possibility of structural failure with the resulting costs and/or longperiods of interruption of operation. The existing SHM techniques based on the changes of the structural dynamic properties have been recognized, by the research community, as being very useful due to their non-destructive and non-invasive characteristics. Various techniques have been developed and applied in the recent years, the focus of attention being not only the ability to detect damage but also to locate it and quantify its severity by using an indicator. The main objective of this work is to assess the efficiency of Frequency Response Curvature Methods for the localization of damage in early stages. A new approach to minimize the effect of noise, existent in the measured Frequency Response Functions (FRFs) that will beused in these methods, is presented. The case studies are based on numerical simulated data.

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BT - Proceedings of ISMA2014 including USD2014

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