We propose to mitigate the barge pitch and roll motions of floating hydrostatic wind turbine (HWT) by combining the advantages of the bidirectional tuned liquid column damper (BTLCD) and the tuned mass damper (TMD). This is achieved by enabling the container of the BTLCD to move freely, connecting it to the main structure through springs and dampers, creating what we call a bidirectional tuned liquid column mass damper (BTLCMD). The BTLCMD is made by the hydraulic reservoir of the HWT, saving costs by avoiding the addition of extra mass and fluids. The HWT simulation model is obtained by replacing the geared drivetrain of the NREL 5‐MW barge wind turbine model with a hydrostatic transmission drivetrain. The dynamics of the BTLCMD are then incorporated into the HWT. Two simplified mathematical models, describing the barge pitch and roll motions of the HWT‐BTLCMD coupled system, are used to obtain the optimal parameters of the BTLCMD. Simulation results demonstrate that the BTLCMD is very effective in mitigating the barge pitch motion, barge roll motion, and the tower base load. The BTLCMD also largely outperforms the BTLCD in suppressing barge motions.

中文翻译：

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使用双向调谐液柱质量阻尼器的浮动静水力风力涡轮机模型的振动抑制

我们建议通过结合双向可调液柱阻尼器（BTLCD）和可调质量阻尼器（TMD）的优势来减轻浮动静水力风力涡轮机（HWT）的驳船俯仰和侧倾运动。这是通过使BTLCD的容器自由移动，通过弹簧和阻尼器将其连接到主体结构，创建所谓的双向可调液柱质量阻尼器（BTLCMD）来实现的。BTLCMD由HWT的液压油箱制成，通过避免添加额外的物料和流体来节省成本。通过将NREL 5兆瓦驳船风力涡轮机模型的齿轮传动系统替换为静液压传动系统传动系统来获得HWT仿真模型。然后将BTLCMD的动力学合并到HWT中。两个简化的数学模型 描述HWT-BTLCMD耦合系统的驳船俯仰和侧倾运动的方法，用于获得BTLCMD的最佳参数。仿真结果表明，BTLCMD在减轻驳船俯仰运动，驳船横滚运动和塔架基础载荷方面非常有效。BTLCMD在抑制驳船运动方面也大大优于BTLCD。