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Automated OMA

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Operational Modal Analysis of Civil Engineering Structures

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Abstract

Vibration-based monitoring of structures is one of the most popular applications of OMA. In the past a relevant limitation to the extensive application of modal-based damage detection techniques and vibration-based monitoring was the lack of fully automated procedures for the estimation of the dynamic parameters of the monitored structure in its operational conditions. Only in the last few years the large research efforts on this topic have filled the gap by the development of a number of automated OMA procedures. This chapter provides an overview of the latest developments in this field. It represents a specific viewpoint about the matter, since a wide consensus in the definition of the “best methods” for automated output-only modal identification has not been reached, yet. The main development issues emerging from a literature review about automated OMA procedures are outlined, and three effective algorithms are described in detail. The discussion about automated OMA methods is complemented by the illustration of some applications. They remark the potential of automated OMA in solving a number of monitoring applications but also the drawbacks related to the influence of environmental and operational factors on the modal parameter estimates.

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Authors and Affiliations

  1. Department of Biosciences and Territory, Structural and Geotechnical Dynamics Lab, University of Molise, Termoli, Italy

    Carlo Rainieri & Giovanni Fabbrocino

Authors
  1. Carlo Rainieri
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  2. Giovanni Fabbrocino
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Rainieri, C., Fabbrocino, G. (2014). Automated OMA. In: Operational Modal Analysis of Civil Engineering Structures. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0767-0_6

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  • DOI: https://doi.org/10.1007/978-1-4939-0767-0_6

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4939-0766-3

  • Online ISBN: 978-1-4939-0767-0

  • eBook Packages: EngineeringEngineering (R0)

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