Guided plate wave scattering at vertical stiffeners and its effect on source location

dc.contributor.author Reusser, Ricky
dc.contributor.author Holland, Stephen
dc.contributor.author Chimenti, Dale
dc.contributor.author Roberts, Ronald
dc.contributor.author Holland, Stephen
dc.contributor.department Aerospace Engineering
dc.date 2018-06-30T08:34:33.000
dc.date.accessioned 2020-06-29T22:45:32Z
dc.date.available 2020-06-29T22:45:32Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.issued 2012-01-01
dc.description.abstract <p>This paper examines guided wave transmission characteristics of plate stiffeners and their influence on the performance of acoustic noise source location. The motivation for this work is the detection of air leaks in manned spacecraft. The leaking air is turbulent and generates noise that can be detected by a contact-coupled acoustic array to perform source location and find the air leak. Transmission characteristics of individual integral stiffeners are measured across a frequency range of 50–400 kHz for both high and low aspect-ratio rectangular stiffeners, and comparisons are made to model predictions which display generally good agreement. It is demonstrated that operating in frequency ranges of high plate wave stiffener transmission significantly improves the reliability of noise source location in the plate. A protocol is presented to enable the selection of an optimal frequency range for leak location.</p>
dc.description.comments <p>This is a post-print of an article published in <em>Ultrasonics</em>, 52, no. 6 (August 2012): 687–693, doi: <a href="http://dx.doi.org/10.1016/j.ultras.2011.10.012" target="_blank">10.1016/j.ultras.2011.10.012</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/14/
dc.identifier.articleid 1008
dc.identifier.contextkey 3476144
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/14
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1985
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/14/Holland_2011_GuidedPlateWaveScattering.pdf|||Fri Jan 14 20:05:42 UTC 2022
dc.source.uri 10.1016/j.ultras.2011.10.012
dc.subject.disciplines Aerospace Engineering
dc.subject.keywords Plate waves; Guided waves
dc.subject.keywords Structural acoustics
dc.subject.keywords nondestructive testing
dc.subject.keywords Nondestructive evaluation
dc.title Guided plate wave scattering at vertical stiffeners and its effect on source location
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication dea444ce-079d-483e-8db1-c33100203381
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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