Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/88823
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Shen, WA | - |
dc.creator | Lei, Y | - |
dc.creator | Hu, L | - |
dc.creator | Wang, Y | - |
dc.date.accessioned | 2020-12-22T01:08:13Z | - |
dc.date.available | 2020-12-22T01:08:13Z | - |
dc.identifier.issn | 1550-1329 | - |
dc.identifier.uri | http://hdl.handle.net/10397/88823 | - |
dc.language.iso | en | en_US |
dc.publisher | Sage Publications, Inc. | en_US |
dc.rights | Copyright © 2012 Wen-ai Shen et al. This is an open access article distributed under the Creative Commons Attribution License (https://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | en_US |
dc.rights | The following publication Shen, W. A., Lei, Y., Hu, L., & Wang, Y. (2012). Feasibility of output-only modal identification using wireless sensor network: A quantitative field experimental study. International Journal of Distributed Sensor Networks, 560161, 1-17 is available at https://dx.doi.org/10.1155/2012/560161 | en_US |
dc.title | Feasibility of output-only modal identification using wireless sensor network : a quantitative field experimental study | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1 | - |
dc.identifier.epage | 17 | - |
dc.identifier.doi | 10.1155/2012/560161 | - |
dcterms.abstract | Although significant advancements have been achieved in wireless sensor network (WSN) in the past decades, there is still a strong need for in-depth analysis on wireless time synchronization and data quality during field testing. In this paper, an academic WSN is adopted for output-only modal identification of two full-scale bridges in Xiamen, China. This paper first assesses the accuracy of time synchronization performed by the WSN through a centralized beacon signal and then studies wireless data quality using two quantitative performance indexes. The relationship between vibration amplitude and quality of wireless sensor data is investigated. With ambient bridge accelerations acquired by wireless sensing units, modal properties of the two bridges are identified using the stochastic subspace identification (SSI) method and the enhanced frequency domain decomposition (EFDD) method. Accuracies of the modal identification results are evaluated through comparison with modal properties identified from tethered sensing data. The comparison shows close match in natural frequencies and mode shapes, although relatively large difference in damping ratios exists between results from wireless and tethered sensing data. An overall close match between the wireless and tethered results demonstrates the feasibility of using WSN for the ambient vibration testing of full-scale bridges. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | International journal of distributed sensor networks, 2012, 560161, p. 1-17 | - |
dcterms.isPartOf | International journal of distributed sensor networks | - |
dcterms.issued | 2012 | - |
dc.identifier.isi | WOS:000311443000001 | - |
dc.identifier.eissn | 1550-1477 | - |
dc.identifier.artn | 560161 | - |
dc.description.validate | 202012 bcrc | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_Scopus/WOS | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Shen_Feasibility_Output-Only_Modal.pdf | 3.39 MB | Adobe PDF | View/Open |
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