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A platform for research: civil engineering, architecture and urbanism
Structural damage detection using real-time modal parameter identification algorithm
A new approach to conducting structural damage detection is described. The approach employs a real-time modal parameter identification algorithm implemented in a digital-signal-processor-based data acquisition system. Because the modal parameter extraction process is conducted in real time, the algorithm is capable of identifying changes in structural properties attributable to structural damage as soon as they occur. Using the algorithm and a laboratory truss structure, it is demonstrated experimentally that continuous, real-time monitoring of anomalies attributable to structural damage is feasible. This monitoring capability will provide an early warning to an operator so that proper measures can be taken before a catastrophic failure occurs. The results of the damage detection study using the truss are presented along with the description of the real-time modal parameter identification algorithm.
Structural damage detection using real-time modal parameter identification algorithm
A new approach to conducting structural damage detection is described. The approach employs a real-time modal parameter identification algorithm implemented in a digital-signal-processor-based data acquisition system. Because the modal parameter extraction process is conducted in real time, the algorithm is capable of identifying changes in structural properties attributable to structural damage as soon as they occur. Using the algorithm and a laboratory truss structure, it is demonstrated experimentally that continuous, real-time monitoring of anomalies attributable to structural damage is feasible. This monitoring capability will provide an early warning to an operator so that proper measures can be taken before a catastrophic failure occurs. The results of the damage detection study using the truss are presented along with the description of the real-time modal parameter identification algorithm.
Structural damage detection using real-time modal parameter identification algorithm
Die Entdeckung von Strukturschäden mit Hilfe eines Echtzeit-Schwingungsparameter-Identifizierungs-Algorithmus
Lim, T.W. (author) / Bosse, A. (author) / Fisher, S. (author)
AIAA Journal ; 34 ; 2370-2376
1996
7 Seiten, 11 Bilder, 2 Tabellen, 17 Quellen
Article (Journal)
English
Strukturanalyse , Schadenfrüherkennung , Fachwerkträger , Raumfahrttechnik , Näherungsverfahren , Echtzeitbetrieb , Schwingungsverhalten , Algorithmus , Datenerfassung , Digitaldaten , Vergleichsmessung , Zustandsüberwachung , Anpassungsfähigkeit , Versuchsanlage , Sensor , Kraftübertragung , Messwertverarbeitung , Beschleunigung
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