A Comparative Assessment of Two SHM Damage Detection Methods in a Laboratory Tower

Ekhi Zugasti; Ana Gomez Gonzalez; Javier Anduaga; Miguel Angel Arregui; Fernando Martínez

doi:10.4028/www.scientific.net/AST.83.232

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A Comparative Assessment of Two SHM Damage Detection Methods in a Laboratory Tower
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 83A Comparative Assessment of Two SHM Damage...

A Comparative Assessment of Two SHM Damage Detection Methods in a Laboratory Tower

Abstract:

In the present paper, we introduce an application of two damage detection methods to a laboratory structure. One of the methods is based on autoregressive modeling of the signals involved, whereas the second one is based on subspace identification. Both have been tested in a tower that simulates a wind turbine. The results obtained are correct for the damages simulated by loosening some bolts of the different joints. The results show that the second method is computationally more efficient whereas the results are more stable in the first one.

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Periodical:

Advances in Science and Technology (Volume 83)

Pages:

232-239

DOI:

https://doi.org/10.4028/www.scientific.net/AST.83.232

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Online since:

September 2012

Authors:

Ekhi Zugasti, Ana Gomez Gonzalez, Javier Anduaga, Miguel Angel Arregui, Fernando Martínez

Keywords:

Autoregressive, NullSpace, Stochastic Subspace Identification, Structural Health Monitoring (SHM)

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