Use and assessment of preliminary FE model results within testing process of offshore wind turbine supporting structure
Kahsin, M.; Luczak, M.; Peeters, B. (2014). Use and assessment of preliminary FE model results within testing process of offshore wind turbine supporting structure, in: Cunha, A. et al. (Ed.) Proceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014. pp. 3659-3666
In: Cunha, A. et al. (Ed.) (2014). Proceedings of the 9th International Conference on Structural Dynamics, EURODYN 2014. European Association for Structural Dynamics (EASD): Portugal. ISBN 978-972-752-165-4. 3889 pp., more
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| Author keywords |
offshore wind; support structure; experimental modal analysis;correlation analysis; numerical model updating |
| Authors | | Top |
- Kahsin, M.
- Luczak, M.
- Peeters, B.
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| Abstract |
Since offshore wind turbine supporting structures are subjected to dynamic environments with time-varying loading conditions, it is important to model their dynamic behavior and validate these models by means of vibrational experiments. In this paper assessment of dynamical state of the structure is investigated by means of both: numerical modeling, and experimental modal analysis. In experimental modal analysis, capturing the real dynamic behavior of tested structure requires a proper sensors and exciters localization. It is often useful to know probable dynamical behavior of the structure before experimental campaign planning. Therefore, the initial FE model results are exploited in order to predict the best configuration for a measuring equipment placement. Acquired test results are compared with FE solutions subsequently. Such a routine allows to asses quality of the preliminary numerical model on the global level, and along with a sensitivity analysis assemble a good starting point for fine-tuning of FE model. |
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