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海上风机半潜式基础概念设计与水动力性能分析

DOI: 10.3969/j.issn.1006-7043.201303003

Keywords: 海上风机, 半潜式浮式基础, 运动响应, 生存能力, 系泊系统, 安全系数

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Abstract:

针对5 MW海上风机动力响应较大的问题,提出了半潜型浮式基础的概念设计,研究了半潜式浮式基础在不同风浪环境下的运动响应和生存能力。考虑叶片空气动力载荷及风浪载荷,以及浮式基础与系泊系统的耦合,建立风机结构系统及水动力模型,采用动量-叶素理论计算叶片空气动力载荷,在频域范围内计算了载荷传递函数。计算分析浮式基础风机系统不同风浪情况下的时域动力响应,评估了半潜型浮式基础在极限海况下的生存能力。结果显示,半潜型浮式基础运动性能良好,且在极端海况下,各系泊缆安全系数均大于1.67,破损状况下安全系数均大于1.33,该浮式基础及其系泊系统具有足够的抵抗极端海况的能力。

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