Název: Applying a two degree of freedom model for drive-by identification
Autoři: Bayer, Jan
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering mechanics 2024 /30./, Milovy (CZ), 20240514
Rok: 2024
Jazyk: eng
Abstrakt: A new concept of drive-by identification is examined applying the analogy with a Two Degree Of Freedom (DOF) system where the bridge is considered the ground-supported spring-mass and the moving spring-mass the second DOF. The response of the moving spring-mass is simulated on a bridge model using different road profiles and compared to parameters of the corresponding two DOF system. The focus is the spectral shift that can be observed on the moving spring-mass during its passage along the bridge and could possibly be applied for drive-by identification. The accuracy mainly depends on the relation of the moving spring-mass to the bridge mass and the relation between the natural frequency of the spring-mass and those of the bridge. The simulations showed that road profile can significantly reduce the accuracy of identified results, which imposes limits on practical applications.
Klíčová slova: drive-by identification; finite element analysis; road roughness; structural health monitoring; two DOF system
Číslo projektu: GC21-32122J (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Engineering mechanics 2024. Book of full texts, ISBN 978-80-214-6235-9, ISSN 1805-8248
Poznámka: Související webová stránka: https://www.engmech.cz/im/im/page/proc

Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: https://hdl.handle.net/11104/0353597

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-614486


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Konferenční materiály > Příspěvky z konference