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Regularization in moving force identification

Law, S.S. , Chan, Tommy H.T., Zhu, Q.X., & Zeng, Q.H. (2001) Regularization in moving force identification. Journal of Engineering Mechanics of ASCE, 127(2), pp. 136-148.

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Abstract

Several methods have been developed to identify forces moving on a beam from measured responses. The results from all of them exhibit fluctuations at the beginning and end of the time history, and they are results of the ill-conditioned inverse problem. This paper includes a regularization method in the solution of the problem with the aim to explore the feasibility of collecting vehicle weight in the weigh-in-motion application. The improvements through regularization to the identified forces using different measured responses are studied with simulation, and the identified forces in the laboratory study obtained from two different existing moving force identification methods are compared. The studies show that the indirect estimation of vehicle weight from dynamic responses is feasible, and further improvements could be achieved with preprocessing of the measured data to reduce the measurement noise.

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43 citations in Scopus
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33 citations in Web of Science®

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ID Code: 12806
Item Type: Journal Article
Additional Information: Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal's website (see hypertext link) or contact the author.
Keywords: moving force identification, weigh, in, motion, bridges, loadings, DYNAMIC ANALYSIS, BRIDGES
DOI: 10.1061/(ASCE)0733-9399(2001)127:2(136)
ISSN: 0733-9399
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2001 American Society of Mechanical Engineers (ASME)
Deposited On: 03 Mar 2008
Last Modified: 23 Jan 2014 13:12

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