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Göge, D. (2003) Effective validation of a finite element model of computational model updating to a civil four-engine aircraft. In: Proceedings of the International Modal Analysis Conference IMAC-XXI. International Modal Analysis Conference IMAC-XXI, Kissimmee, Florida, USA, 2003.
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Abstract
The article presents the results obtained within a study on the effective validation of aeronautical applications. A strategy is indicated to validate the FE model of a 295-seat civil four-engine aircraft using a computational model updating (CMU) method. After a short theoretical review of the inverse sensitivity approach, a strategy is presented that allows for fast updating of the mathematical model. Selection of parameters is described in detail with respect to their physical relevance and the CMU results using experimental data from ground vibration testing (GVT) are presented. The effectiveness of the utilized validation concept is emphasized by comparing eigenfrequencies and mode shapes that were not used in the updating process (so-called passive eigenfrequencies/mode shapes). In order to underline the prediction capability of the updated model, measured and analyticl frequency response functions (FRFs) are compared as well.
| Item URL in elib: | https://elib.dlr.de/14370/ | ||||||
|---|---|---|---|---|---|---|---|
| Document Type: | Conference or Workshop Item (Speech) | ||||||
| Additional Information: | LIDO-Berichtsjahr=2003, | ||||||
| Title: | Effective validation of a finite element model of computational model updating to a civil four-engine aircraft | ||||||
| Authors: |
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| Date: | 2003 | ||||||
| Journal or Publication Title: | Proceedings of the International Modal Analysis Conference IMAC-XXI | ||||||
| Open Access: | No | ||||||
| Gold Open Access: | No | ||||||
| In SCOPUS: | No | ||||||
| In ISI Web of Science: | No | ||||||
| Status: | Published | ||||||
| Keywords: | model validation of large aircraft, computational model updating, inverse sensitivity approach | ||||||
| Event Title: | International Modal Analysis Conference IMAC-XXI, Kissimmee, Florida, USA, 2003 | ||||||
| Organizer: | Society of Experimental Mechanics | ||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||
| HGF - Program: | Aeronautics | ||||||
| HGF - Program Themes: | other | ||||||
| DLR - Research area: | Aeronautics | ||||||
| DLR - Program: | L ST - Starrflüglertechnologien | ||||||
| DLR - Research theme (Project): | UNSPECIFIED | ||||||
| Location: | Göttingen | ||||||
| Institutes and Institutions: | Institute of Aeroelasticity | ||||||
| Deposited By: | Erdmann, Daniela | ||||||
| Deposited On: | 16 Sep 2005 | ||||||
| Last Modified: | 14 Jan 2010 21:46 |
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