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。
In this paper, a numerical analysis is made on the DTU 10MW reference wind turbine supported by a spar-type platform, through the using of FAST code. Kinetic characteristics of the 10 MW offshore floating wind turbine is investigated considering wind only, wave only, and wind-and-wave cases. The results indicate that the oscillation of the system is synthetic motions of low frequency oscillation induced by wind and wave frequency oscillation induced by wave. Aerodynamic damping weakens the wave frequency oscillation of system. Surge and pitch motions have a strongly coupling effect with each other, but heave motion is independent. Motion in yaw is induced by gyroscopic inertia moments derived from rotor spinning and platform pitch. Proportion of motions in low frequency increases, while proportion of motions in wave frequency decreases with the upscaling of wind turbines.
出处
《海洋工程》
CSCD
北大核心
2017年第3期44-51,共8页
The Ocean Engineering
基金
国家自然基金重点项目(51239007)
关键词
浮式风机
运动特性
气动阻尼
耦合
陀螺惯性力矩
floating wind turbine
kinetic characteristics
aerodynamic damping
coupling
gyroscopic inertia moments
