DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ma, Zhanxiong | ko |
dc.contributor.author | Chung, Junyeon | ko |
dc.contributor.author | Liu, Peipei | ko |
dc.contributor.author | Sohn, Hoon | ko |
dc.date.accessioned | 2021-05-27T00:30:15Z | - |
dc.date.available | 2021-05-27T00:30:15Z | - |
dc.date.created | 2021-04-13 | - |
dc.date.created | 2021-04-13 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | STRUCTURAL CONTROL & HEALTH MONITORING, v.28, no.6 | - |
dc.identifier.issn | 1545-2255 | - |
dc.identifier.uri | http://hdl.handle.net/10203/285362 | - |
dc.description.abstract | For large-span bridge monitoring, displacement measurement is essential. However, it remains challenging to accurately estimate bridge displacement. When displacement is calculated by the double integration of acceleration, a low-frequency drift appears in the estimated displacement. Displacement can also be estimated from strains based on the Euler-Bernoulli beam theory. However, prior knowledge of the mode shapes and the neutral axis location of the target bridge are required for strain-displacement transformation. In this study, we propose a finite impulse response filter-based displacement estimation technique by fusing strain and acceleration measurements. First, the relationship between displacement and strain is established, and the parameter associated with this strain-displacement transformation is estimated from strain and acceleration measurements using a recursive least squares algorithm. Next, the low-frequency displacement estimated from the strain measurements and the high-frequency displacement obtained from an acceleration measurement are combined for high-fidelity displacement estimation. The feasibility of the proposed technique was examined via a series of numerical simulations, a lab-scale experiment, and a field test. The uniqueness of this study lies in the fact that the displacement and the unknown parameter in strain-displacement transformation are estimated simultaneously and the accuracy of displacement estimation is improved in comparison with those of previous data fusion techniques. | - |
dc.language | English | - |
dc.publisher | JOHN WILEY & SONS LTD | - |
dc.title | Bridge displacement estimation by fusing accelerometer and strain gauge measurements | - |
dc.type | Article | - |
dc.identifier.wosid | 000629264100001 | - |
dc.identifier.scopusid | 2-s2.0-85102496437 | - |
dc.type.rims | ART | - |
dc.citation.volume | 28 | - |
dc.citation.issue | 6 | - |
dc.citation.publicationname | STRUCTURAL CONTROL & HEALTH MONITORING | - |
dc.identifier.doi | 10.1002/stc.2733 | - |
dc.contributor.localauthor | Sohn, Hoon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | accelerometer | - |
dc.subject.keywordAuthor | data fusion | - |
dc.subject.keywordAuthor | displacement estimation | - |
dc.subject.keywordAuthor | finite impulse response filter | - |
dc.subject.keywordAuthor | strain gauge | - |
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