Abstract
The mooring system can effectively reduce the dynamic response of floating wind turbine platforms (FOWT), especially in extreme environmental conditions. Investigating mooring line failure is crucial for ensuring safety in FOWT operations. MSM-BMW is the multi-segment mooring (MSM) arrangement of the catenary and taut lines, consisting of the buoy multi-clump weight (BMW) that is proposed as a new concept to reduce platform hydrodynamic response. The aim of this study is to assess the performance of FOWTs in both intact and mooring system failure scenarios for two mooring systems: OC4-DeepCwind, representing the primary configuration, and MSM-BMW, representing a hybrid mooring system. The boundary element method (BEM) has been used in the time domain under irregular wave conditions in different wave directions. To simulate mooring line failure, a specific mooring line was intentionally detached from the floating platform at a predetermined time. The hydrodynamic platform responses, mooring line tensions and their statistical responses were checked. Based on the result the BMW concept presents a better performance in both intact and failure modes in comparison primary mooring system (OC4) that significantly reduces platform offset.
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