多浮体海上平台是一个典型的刚柔流耦合多振子系统，本文利用水动力软件AQWA，建立平台的数值仿真计算模型，然后对该平台进行水动力分析。结果表明，浮体响应幅值随连接件刚度变化会出现较大振荡区间现象；在低频和高频阶区域，平台附加阻尼相对较小；在高频区域内，平台幅值响应很小，稳定性良好。本文研究可以为大型海上浮体结构设计提供指导意义。
Modules-offshore platform is a typical multi-oscillator system with flexible-rigid-fluid coupling. In this paper, the hydrodynamic software AQWA is used to establish the numerical simulation model of the platform. Then, Hydrodynamic analysis of the platform is carried out. The results show that response amplitude of platform appears large oscillation interval with change of the cable stiffness; In the low and high frequency region, the additional damping of the platform is relatively small; Response amplitude of platform is small and has a good stability in the high frequency region. This study could provide guidance for the design of large offshore platform.
2017,39(10): 75-78 收稿日期：2016-11-30
DOI：10.3404/j.issn.1672-7649.2017.10.014
分类号：U6613
基金项目：国家自然科学基金资助项目（11572356）
作者简介：李洪仙(1991-),男,硕士研究生,主要从事浮式结构网络系统非线性动力学研究
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