Skip to main content
Top

2023 | OriginalPaper | Chapter

12. Parametric Analysis of the Expansion Process Based on System Equivalent Model Mixing

Authors : Miha Kodrič, Tomaž Bregar, Gregor Čepon, Miha Boltežar

Published in: Dynamic Substructures, Volume 4

Publisher: Springer International Publishing

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Accurate determination of the high-resolution dynamic response is a crucial step for the dynamic properties characterization in the development phase of a modern product. The conventional experimental procedure for the identification of the structure’s dynamic properties is an experimental modal analysis, where a high spatial resolution can be obtained by imposing a large number of response and excitation points at a structure. To avoid time-consuming experimental testing, measurements involving only a limited number of points at the structure can be expanded to the unmeasured points through model-based expansion techniques. They rely on the introduction of a numerical model, presenting the basics of the expansion. Recently, an expansion method called System Equivalent Model Mixing (SEMM) was proposed where a numerical DoF set is used to extend an experimental model consisting only of a limited number of measurement points. Using the dynamic substructuring approach, the equivalent experimental and numerical models are coupled so that the hybrid model inherits the dynamic properties of both. Although the method has been well adopted, there is still no comprehensive phenomenological analysis to determine the influence of the method’s parameters on the consistency of the hybrid model and thus on the accuracy of the expansion process.
This paper addresses the issue by evaluating the accuracy of the SEMM expansion process, focusing on the influence of the regularity of the so-called equivalent numerical model. The introduction of quasi-equivalent numerical models into SEMM is analysed here, which can differ not only with respect to the mass and stiffness properties but also in terms of the geometry and boundary conditions. The parametric study was carried out on a real component of a household appliance, and the most influential parameters in terms of accuracy of the SEMM expansion process were identified.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

Literature
1.
go back to reference Klaassen, S.W., van der Seijs, M.V., de Klerk, D.: System equivalent model mixing. Mech. Syst. Signal Process. 105, 90–112 (2018)CrossRef Klaassen, S.W., van der Seijs, M.V., de Klerk, D.: System equivalent model mixing. Mech. Syst. Signal Process. 105, 90–112 (2018)CrossRef
2.
go back to reference de Klerk, D., Rixen, D.J., de Jong, J.: The frequency based substructuring (FBS) method reformulated according to the dual domain decomposition method. In: Proceedings of the 24th International Modal Analysis Conference, A Conference on Structural Dynamics, pp. 1–14 (2006) de Klerk, D., Rixen, D.J., de Jong, J.: The frequency based substructuring (FBS) method reformulated according to the dual domain decomposition method. In: Proceedings of the 24th International Modal Analysis Conference, A Conference on Structural Dynamics, pp. 1–14 (2006)
3.
go back to reference C.J. Krebs, Ecological Methodology. The Benjamin/Cummings Series in the Life Sciences. Benjamin/Cummings, San Francisco (1999) C.J. Krebs, Ecological Methodology. The Benjamin/Cummings Series in the Life Sciences. Benjamin/Cummings, San Francisco (1999)
Metadata
Title
Parametric Analysis of the Expansion Process Based on System Equivalent Model Mixing
Authors
Miha Kodrič
Tomaž Bregar
Gregor Čepon
Miha Boltežar
Copyright Year
2023
DOI
https://doi.org/10.1007/978-3-031-04094-8_12