Computational aspects of updating contact interface models in assembled structures

T. Chatterjee*, H. Jalali, H. H. Khodaparast, M. I. Friswell

*Corresponding author for this work

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

Abstract

Stochastic model updating of joints is a common solution for realistic modelling of built-up structures. However, detailed large-scale models render the simulations to be computationally expensive. This issue is addressed in the following two ways. The first approach involves stochastic decomposition of the functional space by machine learning techniques such as Gaussian processes, artificial neural networks, generalized radial basis neural networks and support vector machines. The second approach comprises a more physics-based strategy which involves reducing the internal degrees of freedom of the sub-components using the fixed-interface component mode synthesis method. The assembly problem is performed on two beam structures connected by a bolted lap joint. Modal testing is performed on nominally identical beam structures to account for manufacturing variability. The results obtained have been validated and the good performance achieved by the proposed reduced models demonstrates their robustness.

Original languageEnglish
Title of host publicationProceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
EditorsW. Desmet, B. Pluymers, D. Moens, S. Vandemaele
PublisherKU Leuven - Departement Werktuigkunde
Pages3691-3705
Number of pages15
ISBN (Electronic)9789082893113
Publication statusPublished - 2020
Externally publishedYes
Event2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020 - Leuven, Belgium
Duration: 7 Sep 20209 Sep 2020

Publication series

NameProceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics

Conference

Conference2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020
Country/TerritoryBelgium
CityLeuven
Period7/09/209/09/20

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