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KREJČÍ, J. BENEŠ, P.
Originální název
A comparison of two modal analysis methods: An impact hammer versus laser vibrometry
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
This paper presents a comparative experimental-analytical study on the performance of Multi-Input Single-Output (MISO) and Single-Input Multi-Output (SIMO) techniques to identify the modal properties of a cantilever beam. A 2-D laser interferometry was employed to perform the SIMO modal test, while for the MISO test configuration, a conventional accelerometer was used to measure the response of the structure. Comparing the experimentally-measured natural frequencies with those calculated by the FEM model, a maximum difference of 4% between natural frequencies was observed. The repeatability of both techniques is also investigated in this paper and it is shown that the difference between modal properties identified under different operators is less than 0.5% for both the MISO and SIMO techniques.
Klíčová slova
modal analysis, free beam, 2D interferometer, COMSOL, ModalVIEW
Autoři
KREJČÍ, J.; BENEŠ, P.
Vydáno
19. 11. 2020
Nakladatel
Czech Technical University in Prague
Místo
Prague
ISSN
1805-2363
Periodikum
Acta Polytechnica (on-line)
Ročník
60
Číslo
5
Stát
Česká republika
Strany od
420
Strany do
427
Strany počet
7
URL
https://ojs.cvut.cz/ojs/index.php/ap/article/view/6050
Plný text v Digitální knihovně
http://hdl.handle.net/11012/196547
BibTex
@article{BUT156812, author="Jakub {Krejčí} and Petr {Beneš}", title="A comparison of two modal analysis methods: An impact hammer versus laser vibrometry", journal="Acta Polytechnica (on-line)", year="2020", volume="60", number="5", pages="420--427", doi="10.14311/AP.2020.60.0420", issn="1805-2363", url="https://ojs.cvut.cz/ojs/index.php/ap/article/view/6050" }