10MW级海上浮式风机运动特性研究

发布时间：2018-06-26 22:00

本文选题：浮式风机 + 运动特性　；参考：《海洋工程》2017年03期

【摘要】：以DTU 10 MW基准风机为研究对象,单柱式平台作为基础支撑结构,使用FAST软件计算分析,考虑单独风、单独波浪以及风浪组合三种环境条件,对10 MW级海上浮式风机的运动特性进行研究。研究发现:系统摇荡是风激励的低频运动和波浪激励的波频运动的合成,气动阻尼削弱系统的波频运动;系统纵荡和纵摇运动存在明显的耦合现象,而垂荡运动和其他方向的运动没有耦合关系;受纵摇影响,转动的风轮产生陀螺惯性力矩,激励首摇运动;随着风机单机容量的增加,风激励的低频运动比例增大,波浪激励的波频运动比例减小。
[Abstract]:Taking DTU 10MW blower as research object and single column platform as foundation supporting structure, the calculation and analysis of single wind, single wave and wind-wave combination are considered with fast software, and three kinds of environmental conditions are considered, such as single wind, single wave and combination of wind and wave. The motion characteristics of 10 MW floating fan are studied. It is found that the system rocking is the combination of the low frequency motion induced by wind and the wave frequency motion induced by wave, the aerodynamic damping weakens the wave frequency motion of the system, and there is obvious coupling phenomenon between the longitudinal motion and the pitch motion of the system. However, there is no coupling between the pendulum motion and the motion in other directions; under the influence of pitching, the rotating wind wheel produces gyro inertia torque, which excites the initial motion; with the increase of the fan's single capacity, the proportion of low-frequency motion excited by the wind increases. The ratio of wave frequency motion to wave excitation is reduced.
【作者单位】：上海交通大学海洋工程国家重点实验室;上海交通大学高新船舶与深海开发装备协同创新中心;
【基金】：国家自然基金重点项目(51239007)
【分类号】：P742;TM315

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