The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry

Damage detection in structural components, especially in mechanical engineering, is an important element of engineering practice. There are many methods of damage detection, in which changes in various parameters caused by the presence of damage are analysed. Recently, methods based on the analysis...

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Autores principales:	Łukasz Doliński, Marek Krawczuk, Magdalena Palacz, Wiktor Waszkowiak, Arkadiusz Żak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laser doppler scanning vibrometery time-domain spectral finite element method damage detection Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/b0541bb995444078b89f5e07d2204137
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spelling	oai:doaj.org-article:b0541bb995444078b89f5e07d22041372021-11-11T19:19:16ZThe Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry10.3390/s212173941424-8220https://doaj.org/article/b0541bb995444078b89f5e07d22041372021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7394https://doaj.org/toc/1424-8220Damage detection in structural components, especially in mechanical engineering, is an important element of engineering practice. There are many methods of damage detection, in which changes in various parameters caused by the presence of damage are analysed. Recently, methods based on the analysis of changes in dynamic parameters of structures, that is, frequencies or mode shapes of natural vibrations, as well as changes in propagating elastic waves, have been developed at the highest rate. Diagnostic methods based on the elastic wave propagation phenomenon are becoming more and more popular, therefore it is worth focusing on the improvement of the efficiency of these methods. Hence, a question arises about whether it is possible to shorten the required measurement time without affecting the sensitivity of the diagnostic method used. This paper discusses the results of research carried out by the authors in this regard both numerically and experimentally. The numerical analysis has been carried out by the use of the Time-domain Spectral Finite Element Method (TD-SFEM), whereas the experimental part has been based on the measurement performed by 1-D Laser Doppler Scanning Vibrometery (LDSV).Łukasz DolińskiMarek KrawczukMagdalena PalaczWiktor WaszkowiakArkadiusz ŻakMDPI AGarticlelaser doppler scanning vibrometerytime-domain spectral finite element methoddamage detectionChemical technologyTP1-1185ENSensors, Vol 21, Iss 7394, p 7394 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser doppler scanning vibrometery time-domain spectral finite element method damage detection Chemical technology TP1-1185
spellingShingle	laser doppler scanning vibrometery time-domain spectral finite element method damage detection Chemical technology TP1-1185 Łukasz Doliński Marek Krawczuk Magdalena Palacz Wiktor Waszkowiak Arkadiusz Żak The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
description	Damage detection in structural components, especially in mechanical engineering, is an important element of engineering practice. There are many methods of damage detection, in which changes in various parameters caused by the presence of damage are analysed. Recently, methods based on the analysis of changes in dynamic parameters of structures, that is, frequencies or mode shapes of natural vibrations, as well as changes in propagating elastic waves, have been developed at the highest rate. Diagnostic methods based on the elastic wave propagation phenomenon are becoming more and more popular, therefore it is worth focusing on the improvement of the efficiency of these methods. Hence, a question arises about whether it is possible to shorten the required measurement time without affecting the sensitivity of the diagnostic method used. This paper discusses the results of research carried out by the authors in this regard both numerically and experimentally. The numerical analysis has been carried out by the use of the Time-domain Spectral Finite Element Method (TD-SFEM), whereas the experimental part has been based on the measurement performed by 1-D Laser Doppler Scanning Vibrometery (LDSV).
format	article
author	Łukasz Doliński Marek Krawczuk Magdalena Palacz Wiktor Waszkowiak Arkadiusz Żak
author_facet	Łukasz Doliński Marek Krawczuk Magdalena Palacz Wiktor Waszkowiak Arkadiusz Żak
author_sort	Łukasz Doliński
title	The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
title_short	The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
title_full	The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
title_fullStr	The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
title_full_unstemmed	The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry
title_sort	influence of the grid density of measurement points on damage detection in an isotropic plate by the use of elastic waves and laser scanning doppler vibrometry
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b0541bb995444078b89f5e07d2204137
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The Influence of the Grid Density of Measurement Points on Damage Detection in an Isotropic Plate by the Use of Elastic Waves and Laser Scanning Doppler Vibrometry

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