Original title: Applying a two degree of freedom model for drive-by identification
Authors: Bayer, Jan
Document type: Papers
Conference/Event: Engineering mechanics 2024 /30./, Milovy (CZ), 20240514
Year: 2024
Language: eng
Abstract: 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.
Keywords: drive-by identification; finite element analysis; road roughness; structural health monitoring; two DOF system
Project no.: GC21-32122J (CEP)
Funding provider: GA ČR
Host item entry: Engineering mechanics 2024. Book of full texts, ISBN 978-80-214-6235-9, ISSN 1805-8248
Note: Související webová stránka: https://www.engmech.cz/im/im/page/proc

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0353597

Permalink: http://www.nusl.cz/ntk/nusl-614486


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers