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系泊多浮体耦合系统水动力特性数值分析
Numerical analysis of hydrodynamic characteristics of mooring multi-body coupled system
【摘要】 基于系泊浮筒链防撞系统,利用AQWA软件对不同海洋环境下的系泊多浮体耦合系统进行全耦合时域分析,得到浮体的运动响应和缆绳受力情况。结果表明,系泊缆绳最大张力出现在端部系泊缆上,中部系泊缆的迎浪侧缆绳比背浪侧缆绳张力大;单纯波浪环境下,浮体平均横向位移较小,在初始位置往复运动,波流共同作用时浮体发生前后摆动,在水流前进方向运动量较大,而且不能回到初始位置。最后将数值模拟结果与现有试验结果进行对比,验证了该全耦合时域分析方法的可行性,能够为系泊多浮体耦合系统的水动力特性研究提供参考依据。
【Abstract】 Based on the mooring buoy chain anti-ship collision system, AQWA software is used to conduct a fully coupled time-domain analysis of the mooring multi-body coupled system in different marine environments, and the motion response of the floating body and the force of the cable are obtained. The results show that the maximum tension of the mooring cable appears on the end mooring cable. The front side cable of the middle mooring cable has greater tension than the backside cable. In wave environment, the average lateral position of the floating body is relatively small and it is reciprocating in the initial position. The buoyant body oscillates back and forth when the wave-current interact, and the amount of movement in the forward direction of the water flow is large, and it cannot return to the initial position. Finally, the numerical simulation results are compared with the existing experimental results to verify the feasibility of the fully coupled time-domain analysis method and provide reference for the study of the hydrodynamic characteristics of the mooring multi-body coupled system.
【Key words】 floating multi-body; motion responses; dynamic responses; fully coupled time-domain analysis; AQWA;
- 【文献出处】 舰船科学技术 ,Ship Science and Technology , 编辑部邮箱 ,2019年05期
- 【分类号】U653.2
- 【被引频次】9
- 【下载频次】419