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On the experimental coupling with continuous interfaces using frequency based substructuring
ID
Ocepek, Domen
(
Author
),
ID
Trainotti, Francesco
(
Author
),
ID
Čepon, Gregor
(
Author
),
ID
Rixen, Daniel J.
(
Author
),
ID
Boltežar, Miha
(
Author
)
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https://www.sciencedirect.com/science/article/pii/S0888327024004151
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Abstract
In experimental dynamic substructuring, coupling of substructures sharing a line- or surface-like interface proves to be a challenge due to the difficulties in interface modelling. Modelling a high number of degrees of freedom at the common interface can be too stringent when imposing compatibility and equilibrium conditions, thereby causing redundancy and ill-conditioning. To mitigate the effects of overdetermination and experimental errors, that can lead to a high error amplification, several techniques have been developed, proposing different reduction spaces to weaken the interface conditions. This work investigates reduction space definitions in dynamic substructuring for coupling continuous interfaces. In particular, a comparative investigation of three established techniques, namely the frequency-based modal constraints for fixture and subsystem, singular vector transformation, and virtual point transformation, is conducted within the frequency domain. The feasibility of all approaches is supported by an experimental case study, which can guide practitioners in selecting a suitable approach for their specific needs.
Language:
English
Keywords:
frequency based substructuring
,
continuous interface
,
modal constraints for fixture and subsystem
,
singular vector transformation
,
virtual point transformation
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
15 str.
Numbering:
Vol. 217, art. 111517
PID:
20.500.12556/RUL-156339
UDC:
519.62
ISSN on article:
0888-3270
DOI:
10.1016/j.ymssp.2024.111517
COBISS.SI-ID:
196039939
Publication date in RUL:
21.05.2024
Views:
172
Downloads:
32
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Record is a part of a journal
Title:
Mechanical systems and signal processing
Shortened title:
Mech. syst. signal process.
Publisher:
Elsevier
ISSN:
0888-3270
COBISS.SI-ID:
169243
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
podstrukturiranje v frekvenčni domeni
,
zvezni kontakt
,
modalne povezave med podstrukturami
,
transformacija na osnovi singularnih vektorjev
,
transformacija virtualne točke
Projects
Funder:
EC - European Commission
Funding programme:
HE
Project number:
101091536
Name:
Digitalised Value Management for Unlocking the potential of the Circular Manufacturing Systems with integrated digital solutions
Acronym:
DiCiM
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