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Article: Identification of masses moving on multi-span beams based on a genetic algorithm
Title | Identification of masses moving on multi-span beams based on a genetic algorithm |
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Authors | |
Keywords | Genetic Algorithm Inverse Problem Modified Beam Vibration Functions Moving Mass Identification Optimization Pseudo-Inverse Singular Value Decomposition |
Issue Date | 2003 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/compstruc |
Citation | Computers And Structures, 2003, v. 81 n. 22-23, p. 2137-2148 How to Cite? |
Abstract | This paper describes a theoretical study on the identification of masses moving on a multi-span continuous beam using the acceleration measurements. In the study, the acceleration measurements are simulated from the solution to the forward problem of a continuous beam under moving masses, together with the addition of artificially generated measurement noise. In particular, the forward problem for the simulation is solved using the modified beam vibration functions. A simple dynamic force identification procedure using pseudo-inverse and singular value decomposition is first employed to arrive at rough approximations of the moving masses. A genetic algorithm is then used to find the best estimated values of the moving masses by minimizing the errors between the measured accelerations and the reconstructed accelerations from the moving masses in each generation. Five numerical examples are given to demonstrate the robustness of this method. Various possible sources of error including the effects of measurement noise and surface roughness are also discussed. © 2003 Elsevier Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/150245 |
ISSN | 2023 Impact Factor: 4.4 2023 SCImago Journal Rankings: 1.274 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jiang, RJ | en_US |
dc.contributor.author | Au, FTK | en_US |
dc.contributor.author | Cheung, YK | en_US |
dc.date.accessioned | 2012-06-26T06:02:44Z | - |
dc.date.available | 2012-06-26T06:02:44Z | - |
dc.date.issued | 2003 | en_US |
dc.identifier.citation | Computers And Structures, 2003, v. 81 n. 22-23, p. 2137-2148 | en_US |
dc.identifier.issn | 0045-7949 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/150245 | - |
dc.description.abstract | This paper describes a theoretical study on the identification of masses moving on a multi-span continuous beam using the acceleration measurements. In the study, the acceleration measurements are simulated from the solution to the forward problem of a continuous beam under moving masses, together with the addition of artificially generated measurement noise. In particular, the forward problem for the simulation is solved using the modified beam vibration functions. A simple dynamic force identification procedure using pseudo-inverse and singular value decomposition is first employed to arrive at rough approximations of the moving masses. A genetic algorithm is then used to find the best estimated values of the moving masses by minimizing the errors between the measured accelerations and the reconstructed accelerations from the moving masses in each generation. Five numerical examples are given to demonstrate the robustness of this method. Various possible sources of error including the effects of measurement noise and surface roughness are also discussed. © 2003 Elsevier Ltd. All rights reserved. | en_US |
dc.language | eng | en_US |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/compstruc | en_US |
dc.relation.ispartof | Computers and Structures | en_US |
dc.subject | Genetic Algorithm | en_US |
dc.subject | Inverse Problem | en_US |
dc.subject | Modified Beam Vibration Functions | en_US |
dc.subject | Moving Mass Identification | en_US |
dc.subject | Optimization | en_US |
dc.subject | Pseudo-Inverse | en_US |
dc.subject | Singular Value Decomposition | en_US |
dc.title | Identification of masses moving on multi-span beams based on a genetic algorithm | en_US |
dc.type | Article | en_US |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0045-7949&volume=81&issue=22-23&spage=2137&epage=2148&date=2003&atitle=Identification+of+massess+moving+on+multi-span+beams+based+on+a+genetic+algorithm | - |
dc.identifier.email | Au, FTK: francis.au@hku.hk | en_US |
dc.identifier.email | Cheung, YK: hreccyk@hkucc.hku.hk | en_US |
dc.identifier.authority | Au, FTK=rp00083 | en_US |
dc.identifier.authority | Cheung, YK=rp00104 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0045-7949(03)00298-0 | en_US |
dc.identifier.scopus | eid_2-s2.0-0042694620 | en_US |
dc.identifier.hkuros | 95822 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0042694620&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 81 | en_US |
dc.identifier.issue | 22-23 | en_US |
dc.identifier.spage | 2137 | en_US |
dc.identifier.epage | 2148 | en_US |
dc.identifier.isi | WOS:000185409800002 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Jiang, RJ=27169107600 | en_US |
dc.identifier.scopusauthorid | Au, FTK=7005204072 | en_US |
dc.identifier.scopusauthorid | Cheung, YK=7202111065 | en_US |
dc.identifier.issnl | 0045-7949 | - |