考虑多筒导管架基础在下放过程中与浮式起吊船存在耦合作用,以海上风电机组四筒导管架基础为研究对象,通过Sesam建立浮式起吊船-多筒导管架基础的耦合下放模型,研究不同吊缆布置型式下,多筒导管架基础在下放过程中耦合系统的运动响应以及吊缆张力响应,研究表明型式3和型式4的横荡、横摇和艏摇幅值较大,表明其稳定性较差,下放过程中随着基础的逐渐下沉,浮力增大导致吊缆在淹没前的张力响应范围较大,完全淹没后张力响应范围明显减小。型式3和型式4因缆绳刚度较小且初始张力较大,张力响应波动范围更大。
Abstract
This paper investigates the coupling between the suction bucket jacket foundation and the floating crane ship during the lowering process. The four-bucket jacket foundation of an offshore wind turbine is taken as the research subject. A coupled lowering model of the floating crane ship and the foundation is established using Sesam. The motion response of the coupled system and the tension response of the slings are analyzed for different sling layout configurations. The results show that the amplitudes of sway, roll, and yaw are higher for Type 3 and Type 4 configurations. This indicates that their stability is poorer compared to the other types. As the foundation sinks, the buoyancy force increases. This leads to a wider range of tension fluctuations in the slings before submergence. After full submergence, the tension fluctuation range decreases significantly. Type 3 and Type 4 configurations exhibit larger tension fluctuations due to lower sling stiffness and higher initial tension.
关键词
海上风电机组 /
动态响应 /
浮式起重机 /
导管架结构 /
筒型基础 /
下放过程
Key words
offshore wind turbines /
dynamic response /
floating cranes /
jacket structure /
suction bucket foundation /
lowering process
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