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Improved lifetime estimation of mooring chains.

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Background: fatigue damage on mooring chains depend on dynamic loads, but also on the static "mean" loading. For floating wind turbines, when a turbine controller is involved, static and dynamic load on the mooring change in a very different pattern with the sea-state severity, and it is unclear how this affects the fatigue damage.

Objective: Develop method to improve mooring system integrity (especially lifetime estimates) by accounting for the degradation mechanisms in mooring chains, the operational history, and results from monitoring and inspection. Apply the results to "classical" offshore structures and floating wind turbines.


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Project duration

2018 - 2021

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