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Automating the Frequency Domain Decomposition Technique Using the Modal Assurance Criterion
Infrastructures are degrading rapidly, which necessitates the application of automated dynamic characterization in damage identification schemes. The Operational Modal Analysis (OMA) is an effective tool to process monitoring data of structural assets. In this study, the Frequency Domain Decomposition (FDD) technique is automated based on two different criteria, the Discrimination Factor (DF) and Modal Assurance Criterion (MAC). The recorded ambient vibration response of a cable-stayed bridge was used as input to the proposed method to extract its modal properties automatically. The method was also tested on a calibrated finite element model of the cable-stayed bridge for validation purposes. The optimal automation performance is achieved by establishing the best range of each criterion.
Automating the Frequency Domain Decomposition Technique Using the Modal Assurance Criterion
Infrastructures are degrading rapidly, which necessitates the application of automated dynamic characterization in damage identification schemes. The Operational Modal Analysis (OMA) is an effective tool to process monitoring data of structural assets. In this study, the Frequency Domain Decomposition (FDD) technique is automated based on two different criteria, the Discrimination Factor (DF) and Modal Assurance Criterion (MAC). The recorded ambient vibration response of a cable-stayed bridge was used as input to the proposed method to extract its modal properties automatically. The method was also tested on a calibrated finite element model of the cable-stayed bridge for validation purposes. The optimal automation performance is achieved by establishing the best range of each criterion.
Automating the Frequency Domain Decomposition Technique Using the Modal Assurance Criterion
Lecture Notes in Civil Engineering
Cimellaro, Gian Paolo (Herausgeber:in) / Elahi, Amir Reza (Autor:in) / Cardoni, Alessandro (Autor:in) / Domaneschi, Marco (Autor:in) / Cimellaro, Gian Paolo (Autor:in)
World Conference on Seismic Isolation ; 2022 ; Turin, Italy
Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures ; Kapitel: 92 ; 1063-1073
07.01.2023
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Operational modal analysis , Frequency domain decomposition , Cable-stayed bridges , Modal assurance criterion , Discrimination factor Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Fire Science, Hazard Control, Building Safety , Building Construction and Design , Cultural Heritage
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