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An algorithm to study non-stationary random vibrations of vehicle-bridge systems

Lu, F., Lin, J. H., Kennedy, David ORCID: and Williams, Frederic Ward 2009. An algorithm to study non-stationary random vibrations of vehicle-bridge systems. Computers & Structures 87 (3-4) , pp. 177-185. 10.1016/j.compstruc.2008.10.004

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An efficient algorithm is proposed for non-stationary random vibration of vehicle–bridge systems. The pseudo excitation method (PEM) is extended to handle the random analysis of time-dependent vehicle–bridge systems, for which the statistical characteristics of dynamic responses are computed. A vehicle–bridge interaction element is adopted to reduce the computational effort. In the numerical examples, the proposed method is justified by comparing with Monte Carlo simulation results. Also, a method to estimate maximum responses is suggested. Examples include a train moving across both simply supported and three-span continuous bridges and some observed phenomena are discussed.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords: Vehicle–bridge interaction; Track irregularity; Pseudo excitation method
Publisher: Elsevier
ISSN: 0045-7949
Last Modified: 06 Jan 2024 03:55

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