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Model calibration of locally nonlinear structures using information from sub and super harmonic responses
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Maskinteknik)
Chalmers. (Strukturdynamik)
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Maskinteknik)ORCID iD: 0000-0002-4404-5708
Chalmers. (Strukturdynamik)
2012 (English)In: International Conference on Noise and Vibration Engineering 2012 (ISMA 2012): Proceedings of a meeting held 17-19 September 2012, Leuven, Belgium. Including USD 2012 / [ed] P. Sas, S. Jonckheere & D. Moens, Leuven: Katholieke Universiteit Leuven, Department of Mechanical Engineering , 2012, 2451-2464 p.Conference paper, Published paper (Other academic)
Abstract [en]

Large linear finite element models are commonly used in industry to represent global structural behavior and such models are often validated by use of data from vibrational tests. The validated models serve to predict the structural responses due to dynamic loads. Hence, it is important to have models that are able to represent the structural dynamics within the given operating envelope. When test data show proof of non linear behavior, a linear model may not be able to represent the dynamics well enough and thus a modification of the model is required. The main part of the structure may have a linear characteristic whereas localized physical processes can be sources of the observed nonlinearities. Model calibration of such locally nonlinear structures is studied in this paper. Specifically, the calibration process including the selection of appropriate data to be used for calibration of the model parameters chosen is treated. Here, synthetic test data stemming from a model of the Ecole Centrale de Lyon (ECL) nonlinear benchmark are used.

Place, publisher, year, edition, pages
Leuven: Katholieke Universiteit Leuven, Department of Mechanical Engineering , 2012. 2451-2464 p.
Keyword [en]
Nonlinear, Structural dynamics
National Category
Aerospace Engineering
Research subject
Technology (byts ev till Engineering), Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-21192ISI: 000321063902041ISBN: 9781622768257 (print)OAI: oai:DiVA.org:lnu-21192DiVA: diva2:544454
Conference
International Conference on Noise and Vibration Engineering 2012 (ISMA 2012), Leuven, Belgium, September 17-19, 2012
Note

Finansieras av Nationella Flygtekniska ForskningsProgrammet (NFFP 5)

Available from: 2012-08-14 Created: 2012-08-14 Last updated: 2015-06-15Bibliographically approved

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Chen, YoushengLinderholt, Andreas

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
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  • de-DE
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Output format
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