Impact point localization in three-dimensional structures using wavelet transform
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F22%3A43965320" target="_blank" >RIV/49777513:23520/22:43965320 - isvavai.cz</a>
Alternative codes found
RIV/47718684:_____/22:N0000063
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0888327022004964" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0888327022004964</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ymssp.2022.109365" target="_blank" >10.1016/j.ymssp.2022.109365</a>
Alternative languages
Result language
angličtina
Original language name
Impact point localization in three-dimensional structures using wavelet transform
Original language description
Impact-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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20306 - Audio engineering, reliability analysis
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
ISSN
0888-3270
e-ISSN
1096-1216
Volume of the periodical
179
Issue of the periodical within the volume
November
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
nestrankovano
UT code for WoS article
000812164800005
EID of the result in the Scopus database
2-s2.0-85131369376