Impact point localization in three-dimensional structures using wavelet transform

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dc.contributor.authorHoudek, Václav
dc.contributor.authorSmolík, Luboš
dc.contributor.authorKubín, Zdeněk
dc.date.accessioned2022-10-03T10:00:15Z
dc.date.available2022-10-03T10:00:15Z
dc.date.issued2022
dc.description.abstract-translatedImpact-induced anomalies such as travelling waves can be found in many devices or structures. This article provides an experimental method to localize a point of impact in three-dimensional structures using an array of redundant sensors. Concurrent measurement of vibration waveforms in moving measurement points and stationary reference allows determining the times of arrival of the travelling wave and, more importantly, times of arrival relative to the reference. These relative times of arrival allow for employing more measurement points than channels in the data acquisition system. This work proposes a modified method to estimate the times of arrival by combining continuous wavelet transform with optimal interval partitioning. The work also considers that the path between the impact and the measurement point depends on the properties of the structure, causing apparent wave speeds to differ across the measurement points. Therefore, regular triangulation and multilateration methods, which assume equal wave speeds, offer a reduced accuracy. The localization is solved as a constraint optimization problem considering variable apparent speeds.en
dc.format14 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationHOUDEK, V. SMOLÍK, L. KUBÍN, Z. Impact point localization in three-dimensional structures using wavelet transform. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2022, roč. 179, č. November, s. nestránkováno. ISSN: 0888-3270cs
dc.identifier.document-number812164800005
dc.identifier.doi10.1016/j.ymssp.2022.109365
dc.identifier.issn0888-3270
dc.identifier.obd43936319
dc.identifier.uri2-s2.0-85131369376
dc.identifier.urihttp://hdl.handle.net/11025/49664
dc.language.isoenen
dc.publisherAcademic Pressen
dc.relation.ispartofseriesMechanical Systems And Signal Processingen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelům.cs
dc.rights© Elsevieren
dc.rights.accessrestrictedAccessen
dc.subject.translatedTime of arrivalen
dc.subject.translatedContinuous wavelet transformen
dc.subject.translatedImpact-induced vibrationen
dc.subject.translatedImpact point localizationen
dc.subject.translatedDamage localizationen
dc.titleImpact point localization in three-dimensional structures using wavelet transformen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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