Publication:
Identification and avoidance of systematic measurement errors in lamb wave observation with one-dimensional scanning laser vibrometry

cris.customurl 4525
dc.contributor.author Neumann, Mirko N.
dc.contributor.author Hennings, Bianca
dc.contributor.author Lammering, Rolf
dc.date.issued 2013
dc.description.abstract Scanning laser vibrometry is a widely used tool to observe Lamb wave fields for structural health monitoring (SHM) purposes. Lamb waves propagate over long distances in thin-walled structures and interact with structural inhomogeneities, for example, damages, in spite of wavelengths several times of the damage size. In SHM of sheets and glass- or carbon-fibre-reinforced plastic plates, this effect is used for determining the position as well as the size of structural faults. With the often employed one-dimensional vibrometry, a geometrically induced, systematic error occurs when measuring oblique-angled motion. This error can be, in the specific case of Lamb waves, of a non-negligible quantity. The nature of this geometrical measurement error in general and concerning Lamb waves in special is discussed analytically for both amplitude and phase data. It is shown that this matter should be taken into account in some applications. © 2012 Wiley Publishing Ltd.
dc.description.version NA
dc.identifier.doi 10.1111/str.12015
dc.identifier.issn 0039-2103
dc.identifier.scopus 2-s2.0-84875526665
dc.identifier.uri https://openhsu.ub.hsu-hh.de/handle/10.24405/4525
dc.language.iso en
dc.relation.journal Strain
dc.relation.orgunit Mechanik
dc.rights.accessRights metadata only access
dc.subject Lamb Wave
dc.subject Scanning Laser Vibometry
dc.subject Structural Health Monitoring
dc.title Identification and avoidance of systematic measurement errors in lamb wave observation with one-dimensional scanning laser vibrometry
dc.type Research article
dspace.entity.type Publication
hsu.uniBibliography
oaire.citation.endPage 101
oaire.citation.issue 2
oaire.citation.startPage 95
oaire.citation.volume 49
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