Vibration-based Monitoring of Concrete Catenary Poles using Bayesian Inference
Dissertation, Bauhaus-Universität Weimar, 2021
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Sprache: | eng |
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Ilmtal-Weinstraße
Bauhaus-Universitätsverlag als Imprint von arts + science weimar GmbH
2021
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Schriftenreihe: | Schriftenreihe des DFG Graduiertenkollegs 1462, Modellqualitäten
Heft 24 |
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Zusammenfassung: | Dissertation, Bauhaus-Universität Weimar, 2021 This work presents a robust status monitoring approach for detecting damage in cantilever structures based on logistic functions. Also, a stochastic damage identification approach based on changes of Eigen frequencies is proposed. The proposed algorithms are verified using catenary poles of electrified railways track. The proposed damage features overcome the limitation of frequency-based damage identification methods available in the literature, which are valid to detect damage in structures to Level 1 only. Changes in Eigen frequencies of cantilever structures are enough to identify possible local damage at Level 3, i.e., to cover damage detection, localization, and quantification. The proposed algorithms identified the damage with relatively small errors, even at a high noise level. |
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Beschreibung: | xxvi, 149 Seiten Illustrationen, Diagramme |
ISBN: | 9783957732958 978-3-95773-295-8 |