A comparison of two modal analysis methods: An impact hammer versus laser vibrometry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU132037" target="_blank" >RIV/00216305:26220/20:PU132037 - isvavai.cz</a>

Výsledek na webu

<a href="https://ojs.cvut.cz/ojs/index.php/ap/article/view/6050" target="_blank" >https://ojs.cvut.cz/ojs/index.php/ap/article/view/6050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2020.60.0420" target="_blank" >10.14311/AP.2020.60.0420</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A comparison of two modal analysis methods: An impact hammer versus laser vibrometry

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

A comparison of two modal analysis methods: An impact hammer versus laser vibrometry

Popis výsledku anglicky

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.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20205 - Automation and control systems

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Acta Polytechnica (on-line)

ISSN

1210-2709

e-ISSN

1805-2363

Svazek periodika

60

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

420-427

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85095447589