Abstract
A popular strategy in structural dynamic modelling is breaking the structure down into separable, manageable substructures. One can choose the most efficient way of modelling the substructures, before synthesizing the full system model. System Equivalent Model Mixing (SEMM) is a new method that allows mixing of frequency-based models, either of numerical or experimental nature, to form a hybrid structural dynamic model. The method expands measured data onto a numerical mode manifold using Lagrange-Multiplier Frequency Based Substructuring (LM-FBS). Hence, SEMM combines the DoF-space of the numerical model with the dynamic properties of the measured substructure. In this paper, SEMM is applied to a complex vehicle component. Frequency Response Function (FRF) measurements on the component are used to enrich the uncalibrated Finite Element Model of the component. The resulting hybrid model comprises interfaces in six degrees of freedom, which is required for the connectivity to neighboring structures in the FBS framework.
Original language | English |
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Title of host publication | Proceedings ofthe 28th International Conference on Noise and Vibration Engineering (ISMA 2018) and the 7th International Conference on Uncertainty in Structural Dynamics (USD 2018) |
Editors | D. Moens, W. Desmet, B. Pluymers, W. Rottiers |
Place of Publication | Leuven, Belgium |
Publisher | KU Leuven |
Pages | 4037-4047 |
ISBN (Electronic) | 978-907380299-5 |
Publication status | Published - 2018 |
Event | ISMA 2018: 28th International Conference on Noise and Vibration Engineering and USD 2018: 7th International Conference on Uncertainty in Structural Dynamics - Leuven, Belgium Duration: 17 Sept 2018 → 19 Sept 2018 |
Conference
Conference | ISMA 2018: 28th International Conference on Noise and Vibration Engineering and USD 2018: 7th International Conference on Uncertainty in Structural Dynamics |
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Country/Territory | Belgium |
City | Leuven |
Period | 17/09/18 → 19/09/18 |