A comparison of common model updating approaches

D. Xu, M. Karamooz Mahdiabadi, A. Bartl, D. J. Rixen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, three common model updating approaches are considered to evaluate their efficiencies for model calibration on a component of an Ampair 600W wind turbine. This turbine is a test bed for the Substructuring Focus Group of the Society of Experimental Mechanics. The fin of the wind turbine is chosen to be investigated in updating procedures. Firstly, model updating method has been developed using an objective function based on extracted eigenfrequencies. The objective function is chosen as a sum of weighted eigenfrequencies with respect to their importance. In the second procedure, weighted Modal Assurance Criteria (MAC) are used to define the objective function. Finally, measured and simulated Frequency Response Functions (FRFs) are directly used to find the best correlated Finite Element (FE) model. The results of three updating procedures are then compared to measured eigenfrequencies, mode shapes and FRFs, and the evaluation of the performance of these three different model updating methods is discussed.

Original languageEnglish
Title of host publicationDynamics of Coupled Structures - Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016
EditorsDaniel Rixen, Matt Allen, Randall L. Mayes
PublisherSpringer New York LLC
Pages439-446
Number of pages8
ISBN (Print)9783319297620
DOIs
StatePublished - 2016
Event34th IMAC, A Conference and Exposition on Structural Dynamics, 2016 - Orlando, United States
Duration: 25 Jan 201628 Jan 2016

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume4
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

Conference34th IMAC, A Conference and Exposition on Structural Dynamics, 2016
Country/TerritoryUnited States
CityOrlando
Period25/01/1628/01/16

Keywords

  • FRAC
  • FRF
  • MAC
  • Modal analysis
  • Model updating

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