Eigenmode identification of oscillating cantilever using standard X-Ray computed tomography

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00618032" target="_blank" >RIV/68378297:_____/25:00618032 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s10921-025-01173-1" target="_blank" >https://doi.org/10.1007/s10921-025-01173-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10921-025-01173-1" target="_blank" >10.1007/s10921-025-01173-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Eigenmode identification of oscillating cantilever using standard X-Ray computed tomography

Popis výsledku v původním jazyce

X-ray computed tomography with laboratory imaging chains often struggles with high-speed processes, as recording a single tomographic dataset quickly enough is often a challenging task. This paper presents a method for extracting the eigenmode of a harmonically excited oscillating object based on a probabilistic analysis of its tomographic reconstruction. In the standard reconstruction of an oscillating object, where the recording of tomography data is realised over a relatively long period of time, the highest probability of the object occurrence is in its amplitudes. Based on this fact, it is possible to identify the eigenshape of the oscillating object by searching for the envelope of its motion. The identified modal shapes show good agreement with the laser Doppler vibrometer measurements. Consequently, the effectiveness of the method was demonstrated for objects that are unsuitable for traditional laser vibrometry due to their shape or surface limitations.

Název v anglickém jazyce

Eigenmode identification of oscillating cantilever using standard X-Ray computed tomography

Popis výsledku anglicky

X-ray computed tomography with laboratory imaging chains often struggles with high-speed processes, as recording a single tomographic dataset quickly enough is often a challenging task. This paper presents a method for extracting the eigenmode of a harmonically excited oscillating object based on a probabilistic analysis of its tomographic reconstruction. In the standard reconstruction of an oscillating object, where the recording of tomography data is realised over a relatively long period of time, the highest probability of the object occurrence is in its amplitudes. Based on this fact, it is possible to identify the eigenshape of the oscillating object by searching for the envelope of its motion. The identified modal shapes show good agreement with the laser Doppler vibrometer measurements. Consequently, the effectiveness of the method was demonstrated for objects that are unsuitable for traditional laser vibrometry due to their shape or surface limitations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA22-13811S" target="_blank" >GA22-13811S: Inovativní defektoskopická metoda založená na tomografické analýze vlastních tvarů kmitání ve 3D</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Nondestructive Evaluation

ISSN

0195-9298

e-ISSN

1573-4862

Svazek periodika

44

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

38

Kód UT WoS článku

001444318100002

EID výsledku v databázi Scopus

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