Abstract The dynamic characteristics and coupling mechanisms of a bottom fixed offshore wind turbine (OWT) with a pentapod substructure under combined seismic, wind, and wave conditions are analyzed. A passive control method of a tuned mass damper (TMD) is then applied. The influence of the TMD parameters on the control effects of the OWT is investigated, and the feasible parameters for the vibration mitigation are recommended. Then, a multiple tuned mass damper (MTMD) with abundant tuning frequencies is developed in view of the limitation of the TMD on the vibration control. Both the local and global responses of the OWT can be significantly decreased by the MTMD, validating its wide applicability relative to the TMD. Furthermore, suggestions for designing the MTMD for an OWT under the seismic cases are summarized.

中文翻译：

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多调谐质量阻尼器在地震风波联合载荷下的五足式海上风力发电机组的振动控制

摘要 分析了地震、风、浪联合条件下具有五脚架子结构的底部固定式海上风力发电机（OWT）的动力特性和耦合机制。然后应用调谐质量阻尼器 (TMD) 的被动控制方法。研究了 TMD 参数对 OWT 控制效果的影响，并推荐了可行的减振参数。然后，鉴于多调谐质量阻尼器（MTMD）在振动控制上的局限性，开发了具有丰富调谐频率的多调谐质量阻尼器（MTMD）。MTMD 可以显着降低 OWT 的局部和全局响应，从而验证其相对于 TMD 的广泛适用性。此外，还总结了在地震情况下为 OWT 设计 MTMD 的建议。