Impact point localization with the use of wavelet transform

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F21%3AN0000057" target="_blank" >RIV/47718684:_____/21:N0000057 - isvavai.cz</a>
Result on the web
<a href="https://repozytorium.p.lodz.pl/handle/11652/4116?locale-attribute=en" target="_blank" >https://repozytorium.p.lodz.pl/handle/11652/4116?locale-attribute=en</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Impact point localization with the use of wavelet transform
Original language description
This paper provides an experimental method to localise a point of impact in three-dimensional structures. The impact induces vibration anomalies such as shockwaves in various devices or structures. Concurrent measurement of vibration waveforms in several measuring points allows determining the times of arrival of the shockwave. However, the path between the impact and the measuring point depends on the geometry of the struc-ture. Therefore, ordinary triangulation methods cannot be used because apparent wave speeds differ across the measuring points. This paper proposes a set of nonlinear equa-tions with unknown wave speeds and the location of the impact, which are solved using constrained optimisation. The results of this method depend on initial conditions and op-timisation parameters, so their influence is also analysed and discussed.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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