Abstract
Offshore wind turbines are subjected to harsh environmental and operational conditions that affect their dynamic properties and cause damage. Visual checks are, for economic reasons, kept as low as possible, thus making the ability to detect damage via transmitted measurements a vital issue.
Identifying a structure is considered in essence an inverse problem which can be solved using model-updating techniques, which treat the identification problem as an optimization problem that are well-solved using meta-heuristic optimization schemes.
The objective of this study is to investigate the performance of the harmony search algorithm, both basic and modified, in identifying a scaled laboratory model of an offshore wind turbine supporting structure and detect the effects of damage and marine growth. The laboratory model is tested in a wave basin and is subjected to a variety of damage and marine growth levels.
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Acknowledgments
The support of the research project “Condition evaluation and prediction for offshore wind turbines based on measurement data” (Contract No 0325575C) by the German “Federal Ministry for the Environment, Nature Conversation and Nuclear Safety” is gratefully acknowledged.
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Jahjouh, M., Rolfes, R. (2019). The Performance of a Modified Harmony Search Algorithm in the Structural Identification and Damage Detection of a Scaled Offshore Wind Turbine Laboratory Model. In: Rodrigues, H., et al. EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization. EngOpt 2018. Springer, Cham. https://doi.org/10.1007/978-3-319-97773-7_18
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DOI: https://doi.org/10.1007/978-3-319-97773-7_18
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