Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics |
| Herausgeber/-innen | W. Desmet, B. Pluymers, D. Moens, S. Vandemaele |
| Seiten | 1951-1960 |
| Seitenumfang | 10 |
| ISBN (elektronisch) | 9789082893113 |
| Publikationsstatus | Veröffentlicht - 2020 |
| Veranstaltung | International Conference on Noise and Vibration Engineering (ISMA 2020) and International Conference on Uncertainty in Structural Dynamics (USD 2020) - online (Leuven), Belgien Dauer: 7 Sept. 2020 → 9 Sept. 2020 |
Abstract
With this work, we present an iterative finite element (FE) model updating procedure using a stiffness distribution function for the validation of numerical models based on modal parameters. When the modal parameters of an initial FE model are compared to a real structure, a multitude of deviations can usually be observed. Updating parameters of the FE model to fit the measured behaviour of the structure has proven to be an operable approach to assess these deviations. In order to keep the amount of design variables low, model updating procedures commonly involve previous assumptions about uncertain regions in the numerical model. As our aim is to remove the dependence on prior assumptions, we employ a stiffness distribution function, described by only few parameters. Thereby, the application of an iterative updating scheme allows us to determine multiple deviations in the FE model without previous knowledge about their geometric distribution.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Maschinenbau
- Ingenieurwesen (insg.)
- Werkstoffmechanik
- Physik und Astronomie (insg.)
- Akustik und Ultraschall
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Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics. Hrsg. / W. Desmet; B. Pluymers; D. Moens; S. Vandemaele. 2020. S. 1951-1960.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung
}
TY - GEN
T1 - Model validation using iterative finite element model updating
AU - Bruns, M.
AU - Hofmeister, B.
AU - Hübler, C.
AU - Rolfes, R.
N1 - Funding Information: We greatly acknowledge the financial support of the German Federal Ministry for Economic Affairs and Energy (research projects Multivariates Schadensmonitoring von Rotorblättern, FKZ 0324157A, Optimierung der Bemessung hybrider Türme und Entwicklung eines geeigneten Monitoringkonzepts, FKZ 0324221A & Einfluss der Vibrationsparameter auf die Installation und das Tragverhalten von Monopiles, FKZ 03EE3017C), that enabled this work.
PY - 2020
Y1 - 2020
N2 - With this work, we present an iterative finite element (FE) model updating procedure using a stiffness distribution function for the validation of numerical models based on modal parameters. When the modal parameters of an initial FE model are compared to a real structure, a multitude of deviations can usually be observed. Updating parameters of the FE model to fit the measured behaviour of the structure has proven to be an operable approach to assess these deviations. In order to keep the amount of design variables low, model updating procedures commonly involve previous assumptions about uncertain regions in the numerical model. As our aim is to remove the dependence on prior assumptions, we employ a stiffness distribution function, described by only few parameters. Thereby, the application of an iterative updating scheme allows us to determine multiple deviations in the FE model without previous knowledge about their geometric distribution.
AB - With this work, we present an iterative finite element (FE) model updating procedure using a stiffness distribution function for the validation of numerical models based on modal parameters. When the modal parameters of an initial FE model are compared to a real structure, a multitude of deviations can usually be observed. Updating parameters of the FE model to fit the measured behaviour of the structure has proven to be an operable approach to assess these deviations. In order to keep the amount of design variables low, model updating procedures commonly involve previous assumptions about uncertain regions in the numerical model. As our aim is to remove the dependence on prior assumptions, we employ a stiffness distribution function, described by only few parameters. Thereby, the application of an iterative updating scheme allows us to determine multiple deviations in the FE model without previous knowledge about their geometric distribution.
UR - http://www.scopus.com/inward/record.url?scp=85105823478&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85105823478
SP - 1951
EP - 1960
BT - Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics
A2 - Desmet, W.
A2 - Pluymers, B.
A2 - Moens, D.
A2 - Vandemaele, S.
T2 - 2020 International Conference on Noise and Vibration Engineering, ISMA 2020 and 2020 International Conference on Uncertainty in Structural Dynamics, USD 2020
Y2 - 7 September 2020 through 9 September 2020
ER -