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Impact-pose estimation using ArUco markers in structural dynamics
ID
Čepon, Gregor
(
Avtor
),
ID
Ocepek, Domen
(
Avtor
),
ID
Kodrič, Miha
(
Avtor
),
ID
Demšar, Matija
(
Avtor
),
ID
Bregar, Tomaž
(
Avtor
),
ID
Boltežar, Miha
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(4,50 MB)
MD5: BC14DC605E65C754389FB1E6E4506BD3
URL - Izvorni URL, za dostop obiščite
https://link.springer.com/article/10.1007/s40799-023-00646-0
Galerija slik
Izvleček
In structural dynamics a structure’s dynamic properties are often determined from its frequency-response functions (FRFs). Commonly, FRFs are determined by measuring a structure’s response while it is subjected to controlled excitation. Impact excitation performed by hand is a popular way to perform this step, as it enables rapid FRF acquisition for each individual excitation location. On the other hand, the precise location of impacts performed by hand is difficult to estimate and relies mainly on the experimentalist’s skills. Furthermore, deviations in the impact’s location and direction affect the FRFs across the entire frequency range. This paper proposes the use of ArUco markers for an impact-pose estimation for the use in FRF acquisition campaign. The approach relies on two dodecahedrons with markers on each face, one mounted on the impact hammer and another at a known location on the structure. An experimental setup with an analog trigger is suggested, recording an image at the exact time of the impact. A camera with a fixed aperture is used to capture the images, from which the impact pose is estimated in the structure’s coordinate system. Finally, a procedure to compensate for the location error is presented. This relies on the linear dependency of the FRFs in relation to the impact offset.
Jezik:
Angleški jezik
Ključne besede:
frequency-response function
,
impact excitation
,
location uncertainty
,
ArUco markers
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2024
Št. strani:
Str. 369–380
Številčenje:
Vol. 48, iss. 2
PID:
20.500.12556/RUL-155060
UDK:
534.1:004.9
ISSN pri članku:
0732-8818
DOI:
10.1007/s40799-023-00646-0
COBISS.SI-ID:
156882179
Datum objave v RUL:
18.03.2024
Število ogledov:
411
Število prenosov:
54
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Experimental techniques
Skrajšan naslov:
Exp. tech.
Založnik:
Springer Nature, Society for Experimental Mechanics
ISSN:
0732-8818
COBISS.SI-ID:
7426821
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
frekvenčna prenosna funkcija
,
udarno vzbujanje
,
negotovost lokacije
,
ArUco markerji
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0263
Naslov:
Mehanika v tehniki
Financer:
EC - European Commission
Program financ.:
HE
Številka projekta:
101091536
Naslov:
Digitalised Value Management for Unlocking the Potential of the Circular Manufacturing Systems with Integrated Digital Solutions
Akronim:
DiCiM
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